Move stuff into internal/unsortedv0.1.28

38 files changed, 3783 insertions, 0 deletions

diff --git a/internal/unsorted/acl.go b/internal/unsorted/acl.go
new file mode 100644
index 0000000..c2e887d
--- /dev/null
+++ b/internal/unsorted/acl.go
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+// getRepoInfo returns the filesystem path and direct access permission for a
+// given repo and a provided ssh public key.
+//
+// TODO: Revamp.
+func (s *Server) getRepoInfo(ctx context.Context, groupPath []string, repoName, sshPubkey string) (repoID int, fsPath string, access bool, contribReq, userType string, userID int, err error) {
+	err = s.database.QueryRow(ctx, `
+WITH RECURSIVE group_path_cte AS (
+	-- Start: match the first name in the path where parent_group IS NULL
+	SELECT
+		id,
+		parent_group,
+		name,
+		1 AS depth
+	FROM groups
+	WHERE name = ($1::text[])[1]
+		AND parent_group IS NULL
+
+	UNION ALL
+
+	-- Recurse: join next segment of the path
+	SELECT
+		g.id,
+		g.parent_group,
+		g.name,
+		group_path_cte.depth + 1
+	FROM groups g
+	JOIN group_path_cte ON g.parent_group = group_path_cte.id
+	WHERE g.name = ($1::text[])[group_path_cte.depth + 1]
+		AND group_path_cte.depth + 1 <= cardinality($1::text[])
+)
+SELECT
+	r.id,
+	r.filesystem_path,
+	CASE WHEN ugr.user_id IS NOT NULL THEN TRUE ELSE FALSE END AS has_role_in_group,
+	r.contrib_requirements,
+	COALESCE(u.type, ''),
+	COALESCE(u.id, 0)
+FROM group_path_cte g
+JOIN repos r ON r.group_id = g.id
+LEFT JOIN ssh_public_keys s ON s.key_string = $3
+LEFT JOIN users u ON u.id = s.user_id
+LEFT JOIN user_group_roles ugr ON ugr.group_id = g.id AND ugr.user_id = u.id
+WHERE g.depth = cardinality($1::text[])
+	AND r.name = $2
+`, pgtype.FlatArray[string](groupPath), repoName, sshPubkey,
+	).Scan(&repoID, &fsPath, &access, &contribReq, &userType, &userID)
+	return
+}
diff --git a/internal/unsorted/config.go b/internal/unsorted/config.go
new file mode 100644
index 0000000..a2c0eb7
--- /dev/null
+++ b/internal/unsorted/config.go
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"bufio"
+	"errors"
+	"log/slog"
+	"os"
+
+	"go.lindenii.runxiyu.org/forge/internal/database"
+	"go.lindenii.runxiyu.org/forge/internal/irc"
+	"go.lindenii.runxiyu.org/forge/internal/scfg"
+)
+
+type Config struct {
+	HTTP struct {
+		Net          string `scfg:"net"`
+		Addr         string `scfg:"addr"`
+		CookieExpiry int    `scfg:"cookie_expiry"`
+		Root         string `scfg:"root"`
+		ReadTimeout  uint32 `scfg:"read_timeout"`
+		WriteTimeout uint32 `scfg:"write_timeout"`
+		IdleTimeout  uint32 `scfg:"idle_timeout"`
+		ReverseProxy bool   `scfg:"reverse_proxy"`
+	} `scfg:"http"`
+	Hooks struct {
+		Socket string `scfg:"socket"`
+		Execs  string `scfg:"execs"`
+	} `scfg:"hooks"`
+	LMTP struct {
+		Socket       string `scfg:"socket"`
+		Domain       string `scfg:"domain"`
+		MaxSize      int64  `scfg:"max_size"`
+		WriteTimeout uint32 `scfg:"write_timeout"`
+		ReadTimeout  uint32 `scfg:"read_timeout"`
+	} `scfg:"lmtp"`
+	Git struct {
+		RepoDir    string `scfg:"repo_dir"`
+		Socket     string `scfg:"socket"`
+		DaemonPath string `scfg:"daemon_path"`
+	} `scfg:"git"`
+	SSH struct {
+		Net  string `scfg:"net"`
+		Addr string `scfg:"addr"`
+		Key  string `scfg:"key"`
+		Root string `scfg:"root"`
+	} `scfg:"ssh"`
+	IRC     irc.Config `scfg:"irc"`
+	General struct {
+		Title string `scfg:"title"`
+	} `scfg:"general"`
+	DB struct {
+		Type string `scfg:"type"`
+		Conn string `scfg:"conn"`
+	} `scfg:"db"`
+}
+
+// LoadConfig loads a configuration file from the specified path and unmarshals
+// it to the global [config] struct. This may race with concurrent reads from
+// [config]; additional synchronization is necessary if the configuration is to
+// be made reloadable.
+func (s *Server) loadConfig(path string) (err error) {
+	var configFile *os.File
+	if configFile, err = os.Open(path); err != nil {
+		return err
+	}
+	defer configFile.Close()
+
+	decoder := scfg.NewDecoder(bufio.NewReader(configFile))
+	if err = decoder.Decode(&s.config); err != nil {
+		return err
+	}
+	for _, u := range decoder.UnknownDirectives() {
+		slog.Warn("unknown configuration directive", "directive", u)
+	}
+
+	if s.config.DB.Type != "postgres" {
+		return errors.New("unsupported database type")
+	}
+
+	if s.database, err = database.Open(s.config.DB.Conn); err != nil {
+		return err
+	}
+
+	s.globalData["forge_title"] = s.config.General.Title
+
+	return nil
+}
diff --git a/internal/unsorted/database.go b/internal/unsorted/database.go
new file mode 100644
index 0000000..222b0c4
--- /dev/null
+++ b/internal/unsorted/database.go
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+)
+
+// TODO: All database handling logic in all request handlers must be revamped.
+// We must ensure that each request has all logic in one transaction (subject
+// to exceptions if appropriate) so they get a consistent view of the database
+// at a single point. A failure to do so may cause things as serious as
+// privilege escalation.
+
+// queryNameDesc is a helper function that executes a query and returns a
+// list of nameDesc results. The query must return two string arguments, i.e. a
+// name and a description.
+func (s *Server) queryNameDesc(ctx context.Context, query string, args ...any) (result []nameDesc, err error) {
+	var rows pgx.Rows
+
+	if rows, err = s.database.Query(ctx, query, args...); err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var name, description string
+		if err = rows.Scan(&name, &description); err != nil {
+			return nil, err
+		}
+		result = append(result, nameDesc{name, description})
+	}
+	return result, rows.Err()
+}
+
+// nameDesc holds a name and a description.
+type nameDesc struct {
+	Name        string
+	Description string
+}
diff --git a/internal/unsorted/fedauth.go b/internal/unsorted/fedauth.go
new file mode 100644
index 0000000..f54649b
--- /dev/null
+++ b/internal/unsorted/fedauth.go
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"bufio"
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+)
+
+// fedauth checks whether a user's SSH public key matches the remote username
+// they claim to have on the service. If so, the association is recorded.
+func (s *Server) fedauth(ctx context.Context, userID int, service, remoteUsername, pubkey string) (bool, error) {
+	var err error
+
+	matched := false
+	usernameEscaped := url.PathEscape(remoteUsername)
+
+	var req *http.Request
+	switch service {
+	// TODO: Services should be configurable by the instance administrator
+	// and should not be hardcoded in the source code.
+	case "sr.ht":
+		req, err = http.NewRequestWithContext(ctx, http.MethodGet, "https://meta.sr.ht/~"+usernameEscaped+".keys", nil)
+	case "github":
+		req, err = http.NewRequestWithContext(ctx, http.MethodGet, "https://github.com/"+usernameEscaped+".keys", nil)
+	case "codeberg":
+		req, err = http.NewRequestWithContext(ctx, http.MethodGet, "https://codeberg.org/"+usernameEscaped+".keys", nil)
+	case "tangled":
+		req, err = http.NewRequestWithContext(ctx, http.MethodGet, "https://tangled.sh/keys/"+usernameEscaped, nil)
+		// TODO: Don't rely on one webview
+	default:
+		return false, errors.New("unknown federated service")
+	}
+	if err != nil {
+		return false, err
+	}
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		return false, err
+	}
+	defer func() {
+		_ = resp.Body.Close()
+	}()
+	buf := bufio.NewReader(resp.Body)
+
+	for {
+		line, err := buf.ReadString('\n')
+		if errors.Is(err, io.EOF) {
+			break
+		} else if err != nil {
+			return false, err
+		}
+
+		lineSplit := strings.Split(line, " ")
+		if len(lineSplit) < 2 {
+			continue
+		}
+		line = strings.Join(lineSplit[:2], " ")
+
+		if line == pubkey {
+			matched = true
+			break
+		}
+	}
+
+	if !matched {
+		return false, nil
+	}
+
+	var txn pgx.Tx
+	if txn, err = s.database.Begin(ctx); err != nil {
+		return false, err
+	}
+	defer func() {
+		_ = txn.Rollback(ctx)
+	}()
+	if _, err = txn.Exec(ctx, `UPDATE users SET type = 'federated' WHERE id = $1 AND type = 'pubkey_only'`, userID); err != nil {
+		return false, err
+	}
+	if _, err = txn.Exec(ctx, `INSERT INTO federated_identities (user_id, service, remote_username) VALUES ($1, $2, $3)`, userID, service, remoteUsername); err != nil {
+		return false, err
+	}
+	if err = txn.Commit(ctx); err != nil {
+		return false, err
+	}
+
+	return true, nil
+}
diff --git a/internal/unsorted/git_hooks_handle_linux.go b/internal/unsorted/git_hooks_handle_linux.go
new file mode 100644
index 0000000..de45e03
--- /dev/null
+++ b/internal/unsorted/git_hooks_handle_linux.go
@@ -0,0 +1,377 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+//
+//go:build linux
+
+package unsorted
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/jackc/pgx/v5"
+	"go.lindenii.runxiyu.org/forge/internal/ansiec"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+var (
+	errGetFD    = errors.New("unable to get file descriptor")
+	errGetUcred = errors.New("failed getsockopt")
+)
+
+// hooksHandler handles a connection from hookc via the
+// unix socket.
+func (s *Server) hooksHandler(conn net.Conn) {
+	var ctx context.Context
+	var cancel context.CancelFunc
+	var ucred *syscall.Ucred
+	var err error
+	var cookie []byte
+	var packPass packPass
+	var sshStderr io.Writer
+	var hookRet byte
+
+	defer conn.Close()
+	ctx, cancel = context.WithCancel(context.Background())
+	defer cancel()
+
+	// There aren't reasonable cases where someone would run this as
+	// another user.
+	if ucred, err = getUcred(conn); err != nil {
+		if _, err = conn.Write([]byte{1}); err != nil {
+			return
+		}
+		writeRedError(conn, "\nUnable to get peer credentials: %v", err)
+		return
+	}
+	uint32uid := uint32(os.Getuid()) //#nosec G115
+	if ucred.Uid != uint32uid {
+		if _, err = conn.Write([]byte{1}); err != nil {
+			return
+		}
+		writeRedError(conn, "\nUID mismatch")
+		return
+	}
+
+	cookie = make([]byte, 64)
+	if _, err = conn.Read(cookie); err != nil {
+		if _, err = conn.Write([]byte{1}); err != nil {
+			return
+		}
+		writeRedError(conn, "\nFailed to read cookie: %v", err)
+		return
+	}
+
+	{
+		var ok bool
+		packPass, ok = s.packPasses.Load(misc.BytesToString(cookie))
+		if !ok {
+			if _, err = conn.Write([]byte{1}); err != nil {
+				return
+			}
+			writeRedError(conn, "\nInvalid handler cookie")
+			return
+		}
+	}
+
+	sshStderr = packPass.session.Stderr()
+
+	_, _ = sshStderr.Write([]byte{'\n'})
+
+	hookRet = func() byte {
+		var argc64 uint64
+		if err = binary.Read(conn, binary.NativeEndian, &argc64); err != nil {
+			writeRedError(sshStderr, "Failed to read argc: %v", err)
+			return 1
+		}
+		var args []string
+		for range argc64 {
+			var arg bytes.Buffer
+			for {
+				nextByte := make([]byte, 1)
+				n, err := conn.Read(nextByte)
+				if err != nil || n != 1 {
+					writeRedError(sshStderr, "Failed to read arg: %v", err)
+					return 1
+				}
+				if nextByte[0] == 0 {
+					break
+				}
+				arg.WriteByte(nextByte[0])
+			}
+			args = append(args, arg.String())
+		}
+
+		gitEnv := make(map[string]string)
+		for {
+			var envLine bytes.Buffer
+			for {
+				nextByte := make([]byte, 1)
+				n, err := conn.Read(nextByte)
+				if err != nil || n != 1 {
+					writeRedError(sshStderr, "Failed to read environment variable: %v", err)
+					return 1
+				}
+				if nextByte[0] == 0 {
+					break
+				}
+				envLine.WriteByte(nextByte[0])
+			}
+			if envLine.Len() == 0 {
+				break
+			}
+			kv := envLine.String()
+			parts := strings.SplitN(kv, "=", 2)
+			if len(parts) < 2 {
+				writeRedError(sshStderr, "Invalid environment variable line: %v", kv)
+				return 1
+			}
+			gitEnv[parts[0]] = parts[1]
+		}
+
+		var stdin bytes.Buffer
+		if _, err = io.Copy(&stdin, conn); err != nil {
+			writeRedError(conn, "Failed to read to the stdin buffer: %v", err)
+		}
+
+		switch filepath.Base(args[0]) {
+		case "pre-receive":
+			if packPass.directAccess {
+				return 0
+			}
+			allOK := true
+			for {
+				var line, oldOID, rest, newIOID, refName string
+				var found bool
+				var oldHash, newHash plumbing.Hash
+				var oldCommit, newCommit *object.Commit
+				var pushOptCount int
+
+				pushOptCount, err = strconv.Atoi(gitEnv["GIT_PUSH_OPTION_COUNT"])
+				if err != nil {
+					writeRedError(sshStderr, "Failed to parse GIT_PUSH_OPTION_COUNT: %v", err)
+					return 1
+				}
+
+				// TODO: Allow existing users (even if they are already federated or registered) to add a federated user ID... though perhaps this should be in the normal SSH interface instead of the git push interface?
+				// Also it'd be nice to be able to combine users or whatever
+				if packPass.contribReq == "federated" && packPass.userType != "federated" && packPass.userType != "registered" {
+					if pushOptCount == 0 {
+						writeRedError(sshStderr, "This repo requires contributors to be either federated or registered users. You must supply your federated user ID as a push option. For example, git push -o fedid=sr.ht:runxiyu")
+						return 1
+					}
+					for pushOptIndex := range pushOptCount {
+						pushOpt, ok := gitEnv[fmt.Sprintf("GIT_PUSH_OPTION_%d", pushOptIndex)]
+						if !ok {
+							writeRedError(sshStderr, "Failed to get push option %d", pushOptIndex)
+							return 1
+						}
+						if strings.HasPrefix(pushOpt, "fedid=") {
+							fedUserID := strings.TrimPrefix(pushOpt, "fedid=")
+							service, username, found := strings.Cut(fedUserID, ":")
+							if !found {
+								writeRedError(sshStderr, "Invalid federated user identifier %#v does not contain a colon", fedUserID)
+								return 1
+							}
+
+							ok, err := s.fedauth(ctx, packPass.userID, service, username, packPass.pubkey)
+							if err != nil {
+								writeRedError(sshStderr, "Failed to verify federated user identifier %#v: %v", fedUserID, err)
+								return 1
+							}
+							if !ok {
+								writeRedError(sshStderr, "Failed to verify federated user identifier %#v: you don't seem to be on the list", fedUserID)
+								return 1
+							}
+
+							break
+						}
+						if pushOptIndex == pushOptCount-1 {
+							writeRedError(sshStderr, "This repo requires contributors to be either federated or registered users. You must supply your federated user ID as a push option. For example, git push -o fedid=sr.ht:runxiyu")
+							return 1
+						}
+					}
+				}
+
+				line, err = stdin.ReadString('\n')
+				if errors.Is(err, io.EOF) {
+					break
+				} else if err != nil {
+					writeRedError(sshStderr, "Failed to read pre-receive line: %v", err)
+					return 1
+				}
+				line = line[:len(line)-1]
+
+				oldOID, rest, found = strings.Cut(line, " ")
+				if !found {
+					writeRedError(sshStderr, "Invalid pre-receive line: %v", line)
+					return 1
+				}
+
+				newIOID, refName, found = strings.Cut(rest, " ")
+				if !found {
+					writeRedError(sshStderr, "Invalid pre-receive line: %v", line)
+					return 1
+				}
+
+				if strings.HasPrefix(refName, "refs/heads/contrib/") {
+					if allZero(oldOID) { // New branch
+						fmt.Fprintln(sshStderr, ansiec.Blue+"POK"+ansiec.Reset, refName)
+						var newMRLocalID int
+
+						if packPass.userID != 0 {
+							err = s.database.QueryRow(ctx,
+								"INSERT INTO merge_requests (repo_id, creator, source_ref, status) VALUES ($1, $2, $3, 'open') RETURNING repo_local_id",
+								packPass.repoID, packPass.userID, strings.TrimPrefix(refName, "refs/heads/"),
+							).Scan(&newMRLocalID)
+						} else {
+							err = s.database.QueryRow(ctx,
+								"INSERT INTO merge_requests (repo_id, source_ref, status) VALUES ($1, $2, 'open') RETURNING repo_local_id",
+								packPass.repoID, strings.TrimPrefix(refName, "refs/heads/"),
+							).Scan(&newMRLocalID)
+						}
+						if err != nil {
+							writeRedError(sshStderr, "Error creating merge request: %v", err)
+							return 1
+						}
+						mergeRequestWebURL := fmt.Sprintf("%s/contrib/%d/", s.genHTTPRemoteURL(packPass.groupPath, packPass.repoName), newMRLocalID)
+						fmt.Fprintln(sshStderr, ansiec.Blue+"Created merge request at", mergeRequestWebURL+ansiec.Reset)
+
+						s.ircBot.Send("PRIVMSG #chat :New merge request at " + mergeRequestWebURL)
+					} else { // Existing contrib branch
+						var existingMRUser int
+						var isAncestor bool
+
+						err = s.database.QueryRow(ctx,
+							"SELECT COALESCE(creator, 0) FROM merge_requests WHERE source_ref = $1 AND repo_id = $2",
+							strings.TrimPrefix(refName, "refs/heads/"), packPass.repoID,
+						).Scan(&existingMRUser)
+						if err != nil {
+							if errors.Is(err, pgx.ErrNoRows) {
+								writeRedError(sshStderr, "No existing merge request for existing contrib branch: %v", err)
+							} else {
+								writeRedError(sshStderr, "Error querying for existing merge request: %v", err)
+							}
+							return 1
+						}
+						if existingMRUser == 0 {
+							allOK = false
+							fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(branch belongs to unowned MR)")
+							continue
+						}
+
+						if existingMRUser != packPass.userID {
+							allOK = false
+							fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(branch belongs another user's MR)")
+							continue
+						}
+
+						oldHash = plumbing.NewHash(oldOID)
+
+						if oldCommit, err = packPass.repo.CommitObject(oldHash); err != nil {
+							writeRedError(sshStderr, "Daemon failed to get old commit: %v", err)
+							return 1
+						}
+
+						// Potential BUG: I'm not sure if new_commit is guaranteed to be
+						// detectable as they haven't been merged into the main repo's
+						// objects yet. But it seems to work, and I don't think there's
+						// any reason for this to only work intermitently.
+						newHash = plumbing.NewHash(newIOID)
+						if newCommit, err = packPass.repo.CommitObject(newHash); err != nil {
+							writeRedError(sshStderr, "Daemon failed to get new commit: %v", err)
+							return 1
+						}
+
+						if isAncestor, err = oldCommit.IsAncestor(newCommit); err != nil {
+							writeRedError(sshStderr, "Daemon failed to check if old commit is ancestor: %v", err)
+							return 1
+						}
+
+						if !isAncestor {
+							// TODO: Create MR snapshot ref instead
+							allOK = false
+							fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(force pushes are not supported yet)")
+							continue
+						}
+
+						fmt.Fprintln(sshStderr, ansiec.Blue+"POK"+ansiec.Reset, refName)
+					}
+				} else { // Non-contrib branch
+					allOK = false
+					fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(you cannot push to branches outside of contrib/*)")
+				}
+			}
+
+			fmt.Fprintln(sshStderr)
+			if allOK {
+				fmt.Fprintln(sshStderr, "Overall "+ansiec.Green+"ACK"+ansiec.Reset+" (all checks passed)")
+				return 0
+			}
+			fmt.Fprintln(sshStderr, "Overall "+ansiec.Red+"NAK"+ansiec.Reset+" (one or more branches failed checks)")
+			return 1
+		default:
+			fmt.Fprintln(sshStderr, ansiec.Red+"Invalid hook:", args[0]+ansiec.Reset)
+			return 1
+		}
+	}()
+
+	fmt.Fprintln(sshStderr)
+
+	_, _ = conn.Write([]byte{hookRet})
+}
+
+// serveGitHooks handles connections on the specified network listener and
+// treats incoming connections as those from git hook handlers by spawning
+// sessions. The listener must be a SOCK_STREAM UNIX domain socket. The
+// function itself blocks.
+func (s *Server) serveGitHooks(listener net.Listener) error {
+	for {
+		conn, err := listener.Accept()
+		if err != nil {
+			return err
+		}
+		go s.hooksHandler(conn)
+	}
+}
+
+// getUcred fetches connection credentials as a [syscall.Ucred] from a given
+// [net.Conn]. It panics when conn is not a [net.UnixConn].
+func getUcred(conn net.Conn) (ucred *syscall.Ucred, err error) {
+	unixConn := conn.(*net.UnixConn)
+	var unixConnFD *os.File
+
+	if unixConnFD, err = unixConn.File(); err != nil {
+		return nil, errGetFD
+	}
+	defer unixConnFD.Close()
+
+	if ucred, err = syscall.GetsockoptUcred(int(unixConnFD.Fd()), syscall.SOL_SOCKET, syscall.SO_PEERCRED); err != nil {
+		return nil, errGetUcred
+	}
+	return ucred, nil
+}
+
+// allZero returns true if all runes in a given string are '0'. The comparison
+// is not constant time and must not be used in contexts where time-based side
+// channel attacks are a concern.
+func allZero(s string) bool {
+	for _, r := range s {
+		if r != '0' {
+			return false
+		}
+	}
+	return true
+}
diff --git a/internal/unsorted/git_hooks_handle_other.go b/internal/unsorted/git_hooks_handle_other.go
new file mode 100644
index 0000000..dd46622
--- /dev/null
+++ b/internal/unsorted/git_hooks_handle_other.go
@@ -0,0 +1,336 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+//
+//go:build !linux
+
+package unsorted
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"io"
+	"net"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/jackc/pgx/v5"
+	"go.lindenii.runxiyu.org/forge/internal/ansiec"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+// hooksHandler handles a connection from hookc via the
+// unix socket.
+func (s *Server) hooksHandler(conn net.Conn) {
+	var ctx context.Context
+	var cancel context.CancelFunc
+	var err error
+	var cookie []byte
+	var packPass packPass
+	var sshStderr io.Writer
+	var hookRet byte
+
+	defer conn.Close()
+	ctx, cancel = context.WithCancel(context.Background())
+	defer cancel()
+
+	// TODO: ucred-like checks
+
+	cookie = make([]byte, 64)
+	if _, err = conn.Read(cookie); err != nil {
+		if _, err = conn.Write([]byte{1}); err != nil {
+			return
+		}
+		writeRedError(conn, "\nFailed to read cookie: %v", err)
+		return
+	}
+
+	{
+		var ok bool
+		packPass, ok = s.packPasses.Load(misc.BytesToString(cookie))
+		if !ok {
+			if _, err = conn.Write([]byte{1}); err != nil {
+				return
+			}
+			writeRedError(conn, "\nInvalid handler cookie")
+			return
+		}
+	}
+
+	sshStderr = packPass.session.Stderr()
+
+	_, _ = sshStderr.Write([]byte{'\n'})
+
+	hookRet = func() byte {
+		var argc64 uint64
+		if err = binary.Read(conn, binary.NativeEndian, &argc64); err != nil {
+			writeRedError(sshStderr, "Failed to read argc: %v", err)
+			return 1
+		}
+		var args []string
+		for range argc64 {
+			var arg bytes.Buffer
+			for {
+				nextByte := make([]byte, 1)
+				n, err := conn.Read(nextByte)
+				if err != nil || n != 1 {
+					writeRedError(sshStderr, "Failed to read arg: %v", err)
+					return 1
+				}
+				if nextByte[0] == 0 {
+					break
+				}
+				arg.WriteByte(nextByte[0])
+			}
+			args = append(args, arg.String())
+		}
+
+		gitEnv := make(map[string]string)
+		for {
+			var envLine bytes.Buffer
+			for {
+				nextByte := make([]byte, 1)
+				n, err := conn.Read(nextByte)
+				if err != nil || n != 1 {
+					writeRedError(sshStderr, "Failed to read environment variable: %v", err)
+					return 1
+				}
+				if nextByte[0] == 0 {
+					break
+				}
+				envLine.WriteByte(nextByte[0])
+			}
+			if envLine.Len() == 0 {
+				break
+			}
+			kv := envLine.String()
+			parts := strings.SplitN(kv, "=", 2)
+			if len(parts) < 2 {
+				writeRedError(sshStderr, "Invalid environment variable line: %v", kv)
+				return 1
+			}
+			gitEnv[parts[0]] = parts[1]
+		}
+
+		var stdin bytes.Buffer
+		if _, err = io.Copy(&stdin, conn); err != nil {
+			writeRedError(conn, "Failed to read to the stdin buffer: %v", err)
+		}
+
+		switch filepath.Base(args[0]) {
+		case "pre-receive":
+			if packPass.directAccess {
+				return 0
+			}
+			allOK := true
+			for {
+				var line, oldOID, rest, newIOID, refName string
+				var found bool
+				var oldHash, newHash plumbing.Hash
+				var oldCommit, newCommit *object.Commit
+				var pushOptCount int
+
+				pushOptCount, err = strconv.Atoi(gitEnv["GIT_PUSH_OPTION_COUNT"])
+				if err != nil {
+					writeRedError(sshStderr, "Failed to parse GIT_PUSH_OPTION_COUNT: %v", err)
+					return 1
+				}
+
+				// TODO: Allow existing users (even if they are already federated or registered) to add a federated user ID... though perhaps this should be in the normal SSH interface instead of the git push interface?
+				// Also it'd be nice to be able to combine users or whatever
+				if packPass.contribReq == "federated" && packPass.userType != "federated" && packPass.userType != "registered" {
+					if pushOptCount == 0 {
+						writeRedError(sshStderr, "This repo requires contributors to be either federated or registered users. You must supply your federated user ID as a push option. For example, git push -o fedid=sr.ht:runxiyu")
+						return 1
+					}
+					for pushOptIndex := range pushOptCount {
+						pushOpt, ok := gitEnv[fmt.Sprintf("GIT_PUSH_OPTION_%d", pushOptIndex)]
+						if !ok {
+							writeRedError(sshStderr, "Failed to get push option %d", pushOptIndex)
+							return 1
+						}
+						if strings.HasPrefix(pushOpt, "fedid=") {
+							fedUserID := strings.TrimPrefix(pushOpt, "fedid=")
+							service, username, found := strings.Cut(fedUserID, ":")
+							if !found {
+								writeRedError(sshStderr, "Invalid federated user identifier %#v does not contain a colon", fedUserID)
+								return 1
+							}
+
+							ok, err := s.fedauth(ctx, packPass.userID, service, username, packPass.pubkey)
+							if err != nil {
+								writeRedError(sshStderr, "Failed to verify federated user identifier %#v: %v", fedUserID, err)
+								return 1
+							}
+							if !ok {
+								writeRedError(sshStderr, "Failed to verify federated user identifier %#v: you don't seem to be on the list", fedUserID)
+								return 1
+							}
+
+							break
+						}
+						if pushOptIndex == pushOptCount-1 {
+							writeRedError(sshStderr, "This repo requires contributors to be either federated or registered users. You must supply your federated user ID as a push option. For example, git push -o fedid=sr.ht:runxiyu")
+							return 1
+						}
+					}
+				}
+
+				line, err = stdin.ReadString('\n')
+				if errors.Is(err, io.EOF) {
+					break
+				} else if err != nil {
+					writeRedError(sshStderr, "Failed to read pre-receive line: %v", err)
+					return 1
+				}
+				line = line[:len(line)-1]
+
+				oldOID, rest, found = strings.Cut(line, " ")
+				if !found {
+					writeRedError(sshStderr, "Invalid pre-receive line: %v", line)
+					return 1
+				}
+
+				newIOID, refName, found = strings.Cut(rest, " ")
+				if !found {
+					writeRedError(sshStderr, "Invalid pre-receive line: %v", line)
+					return 1
+				}
+
+				if strings.HasPrefix(refName, "refs/heads/contrib/") {
+					if allZero(oldOID) { // New branch
+						fmt.Fprintln(sshStderr, ansiec.Blue+"POK"+ansiec.Reset, refName)
+						var newMRLocalID int
+
+						if packPass.userID != 0 {
+							err = s.database.QueryRow(ctx,
+								"INSERT INTO merge_requests (repo_id, creator, source_ref, status) VALUES ($1, $2, $3, 'open') RETURNING repo_local_id",
+								packPass.repoID, packPass.userID, strings.TrimPrefix(refName, "refs/heads/"),
+							).Scan(&newMRLocalID)
+						} else {
+							err = s.database.QueryRow(ctx,
+								"INSERT INTO merge_requests (repo_id, source_ref, status) VALUES ($1, $2, 'open') RETURNING repo_local_id",
+								packPass.repoID, strings.TrimPrefix(refName, "refs/heads/"),
+							).Scan(&newMRLocalID)
+						}
+						if err != nil {
+							writeRedError(sshStderr, "Error creating merge request: %v", err)
+							return 1
+						}
+						mergeRequestWebURL := fmt.Sprintf("%s/contrib/%d/", s.genHTTPRemoteURL(packPass.groupPath, packPass.repoName), newMRLocalID)
+						fmt.Fprintln(sshStderr, ansiec.Blue+"Created merge request at", mergeRequestWebURL+ansiec.Reset)
+
+						s.ircBot.Send("PRIVMSG #chat :New merge request at " + mergeRequestWebURL)
+					} else { // Existing contrib branch
+						var existingMRUser int
+						var isAncestor bool
+
+						err = s.database.QueryRow(ctx,
+							"SELECT COALESCE(creator, 0) FROM merge_requests WHERE source_ref = $1 AND repo_id = $2",
+							strings.TrimPrefix(refName, "refs/heads/"), packPass.repoID,
+						).Scan(&existingMRUser)
+						if err != nil {
+							if errors.Is(err, pgx.ErrNoRows) {
+								writeRedError(sshStderr, "No existing merge request for existing contrib branch: %v", err)
+							} else {
+								writeRedError(sshStderr, "Error querying for existing merge request: %v", err)
+							}
+							return 1
+						}
+						if existingMRUser == 0 {
+							allOK = false
+							fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(branch belongs to unowned MR)")
+							continue
+						}
+
+						if existingMRUser != packPass.userID {
+							allOK = false
+							fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(branch belongs another user's MR)")
+							continue
+						}
+
+						oldHash = plumbing.NewHash(oldOID)
+
+						if oldCommit, err = packPass.repo.CommitObject(oldHash); err != nil {
+							writeRedError(sshStderr, "Daemon failed to get old commit: %v", err)
+							return 1
+						}
+
+						// Potential BUG: I'm not sure if new_commit is guaranteed to be
+						// detectable as they haven't been merged into the main repo's
+						// objects yet. But it seems to work, and I don't think there's
+						// any reason for this to only work intermitently.
+						newHash = plumbing.NewHash(newIOID)
+						if newCommit, err = packPass.repo.CommitObject(newHash); err != nil {
+							writeRedError(sshStderr, "Daemon failed to get new commit: %v", err)
+							return 1
+						}
+
+						if isAncestor, err = oldCommit.IsAncestor(newCommit); err != nil {
+							writeRedError(sshStderr, "Daemon failed to check if old commit is ancestor: %v", err)
+							return 1
+						}
+
+						if !isAncestor {
+							// TODO: Create MR snapshot ref instead
+							allOK = false
+							fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(force pushes are not supported yet)")
+							continue
+						}
+
+						fmt.Fprintln(sshStderr, ansiec.Blue+"POK"+ansiec.Reset, refName)
+					}
+				} else { // Non-contrib branch
+					allOK = false
+					fmt.Fprintln(sshStderr, ansiec.Red+"NAK"+ansiec.Reset, refName, "(you cannot push to branches outside of contrib/*)")
+				}
+			}
+
+			fmt.Fprintln(sshStderr)
+			if allOK {
+				fmt.Fprintln(sshStderr, "Overall "+ansiec.Green+"ACK"+ansiec.Reset+" (all checks passed)")
+				return 0
+			}
+			fmt.Fprintln(sshStderr, "Overall "+ansiec.Red+"NAK"+ansiec.Reset+" (one or more branches failed checks)")
+			return 1
+		default:
+			fmt.Fprintln(sshStderr, ansiec.Red+"Invalid hook:", args[0]+ansiec.Reset)
+			return 1
+		}
+	}()
+
+	fmt.Fprintln(sshStderr)
+
+	_, _ = conn.Write([]byte{hookRet})
+}
+
+// serveGitHooks handles connections on the specified network listener and
+// treats incoming connections as those from git hook handlers by spawning
+// sessions. The listener must be a SOCK_STREAM UNIX domain socket. The
+// function itself blocks.
+func (s *Server) serveGitHooks(listener net.Listener) error {
+	for {
+		conn, err := listener.Accept()
+		if err != nil {
+			return err
+		}
+		go s.hooksHandler(conn)
+	}
+}
+
+// allZero returns true if all runes in a given string are '0'. The comparison
+// is not constant time and must not be used in contexts where time-based side
+// channel attacks are a concern.
+func allZero(s string) bool {
+	for _, r := range s {
+		if r != '0' {
+			return false
+		}
+	}
+	return true
+}
diff --git a/internal/unsorted/git_init.go b/internal/unsorted/git_init.go
new file mode 100644
index 0000000..a9bba78
--- /dev/null
+++ b/internal/unsorted/git_init.go
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"github.com/go-git/go-git/v5"
+	gitConfig "github.com/go-git/go-git/v5/config"
+	gitFmtConfig "github.com/go-git/go-git/v5/plumbing/format/config"
+)
+
+// gitInit initializes a bare git repository with the forge-deployed hooks
+// directory as the hooksPath.
+func (s *Server) gitInit(repoPath string) (err error) {
+	var repo *git.Repository
+	var gitConf *gitConfig.Config
+
+	if repo, err = git.PlainInit(repoPath, true); err != nil {
+		return err
+	}
+
+	if gitConf, err = repo.Config(); err != nil {
+		return err
+	}
+
+	gitConf.Raw.SetOption("core", gitFmtConfig.NoSubsection, "hooksPath", s.config.Hooks.Execs)
+	gitConf.Raw.SetOption("receive", gitFmtConfig.NoSubsection, "advertisePushOptions", "true")
+
+	if err = repo.SetConfig(gitConf); err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/internal/unsorted/git_misc.go b/internal/unsorted/git_misc.go
new file mode 100644
index 0000000..ceda3d1
--- /dev/null
+++ b/internal/unsorted/git_misc.go
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"context"
+	"errors"
+	"io"
+	"iter"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+// openRepo opens a git repository by group and repo name.
+//
+// TODO: This should be deprecated in favor of doing it in the relevant
+// request/router context in the future, as it cannot cover the nuance of
+// fields needed.
+func (s *Server) openRepo(ctx context.Context, groupPath []string, repoName string) (repo *git.Repository, description string, repoID int, fsPath string, err error) {
+	err = s.database.QueryRow(ctx, `
+WITH RECURSIVE group_path_cte AS (
+	-- Start: match the first name in the path where parent_group IS NULL
+	SELECT
+		id,
+		parent_group,
+		name,
+		1 AS depth
+	FROM groups
+	WHERE name = ($1::text[])[1]
+		AND parent_group IS NULL
+
+	UNION ALL
+
+	-- Recurse: join next segment of the path
+	SELECT
+		g.id,
+		g.parent_group,
+		g.name,
+		group_path_cte.depth + 1
+	FROM groups g
+	JOIN group_path_cte ON g.parent_group = group_path_cte.id
+	WHERE g.name = ($1::text[])[group_path_cte.depth + 1]
+		AND group_path_cte.depth + 1 <= cardinality($1::text[])
+)
+SELECT
+	r.filesystem_path,
+	COALESCE(r.description, ''),
+	r.id
+FROM group_path_cte g
+JOIN repos r ON r.group_id = g.id
+WHERE g.depth = cardinality($1::text[])
+	AND r.name = $2
+	`, pgtype.FlatArray[string](groupPath), repoName).Scan(&fsPath, &description, &repoID)
+	if err != nil {
+		return
+	}
+
+	repo, err = git.PlainOpen(fsPath)
+	return
+}
+
+// commitIterSeqErr creates an [iter.Seq[*object.Commit]] from an
+// [object.CommitIter], and additionally returns a pointer to error.
+// The pointer to error is guaranteed to be populated with either nil or the
+// error returned by the commit iterator after the returned iterator is
+// finished.
+func commitIterSeqErr(commitIter object.CommitIter) (iter.Seq[*object.Commit], *error) {
+	var err error
+	return func(yield func(*object.Commit) bool) {
+		for {
+			commit, err2 := commitIter.Next()
+			if err2 != nil {
+				if errors.Is(err2, io.EOF) {
+					return
+				}
+				err = err2
+				return
+			}
+			if !yield(commit) {
+				return
+			}
+		}
+	}, &err
+}
diff --git a/internal/unsorted/git_plumbing.go b/internal/unsorted/git_plumbing.go
new file mode 100644
index 0000000..5cb30b7
--- /dev/null
+++ b/internal/unsorted/git_plumbing.go
@@ -0,0 +1,188 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"bytes"
+	"context"
+	"encoding/hex"
+	"errors"
+	"os"
+	"os/exec"
+	"path"
+	"sort"
+	"strings"
+
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+func writeTree(ctx context.Context, repoPath string, entries []treeEntry) (string, error) {
+	var buf bytes.Buffer
+
+	sort.Slice(entries, func(i, j int) bool {
+		nameI, nameJ := entries[i].name, entries[j].name
+
+		if nameI == nameJ { // meh
+			return !(entries[i].mode == "40000") && (entries[j].mode == "40000")
+		}
+
+		if strings.HasPrefix(nameJ, nameI) && len(nameI) < len(nameJ) {
+			return !(entries[i].mode == "40000")
+		}
+
+		if strings.HasPrefix(nameI, nameJ) && len(nameJ) < len(nameI) {
+			return entries[j].mode == "40000"
+		}
+
+		return nameI < nameJ
+	})
+
+	for _, e := range entries {
+		buf.WriteString(e.mode)
+		buf.WriteByte(' ')
+		buf.WriteString(e.name)
+		buf.WriteByte(0)
+		buf.Write(e.sha)
+	}
+
+	cmd := exec.CommandContext(ctx, "git", "hash-object", "-w", "-t", "tree", "--stdin")
+	cmd.Env = append(os.Environ(), "GIT_DIR="+repoPath)
+	cmd.Stdin = &buf
+
+	var out bytes.Buffer
+	cmd.Stdout = &out
+	if err := cmd.Run(); err != nil {
+		return "", err
+	}
+	return strings.TrimSpace(out.String()), nil
+}
+
+func buildTreeRecursive(ctx context.Context, repoPath, baseTree string, updates map[string][]byte) (string, error) {
+	treeCache := make(map[string][]treeEntry)
+
+	var walk func(string, string) error
+	walk = func(prefix, sha string) error {
+		cmd := exec.CommandContext(ctx, "git", "cat-file", "tree", sha)
+		cmd.Env = append(os.Environ(), "GIT_DIR="+repoPath)
+		var out bytes.Buffer
+		cmd.Stdout = &out
+		if err := cmd.Run(); err != nil {
+			return err
+		}
+		data := out.Bytes()
+		i := 0
+		var entries []treeEntry
+		for i < len(data) {
+			modeEnd := bytes.IndexByte(data[i:], ' ')
+			if modeEnd < 0 {
+				return errors.New("invalid tree format")
+			}
+			mode := misc.BytesToString(data[i : i+modeEnd])
+			i += modeEnd + 1
+
+			nameEnd := bytes.IndexByte(data[i:], 0)
+			if nameEnd < 0 {
+				return errors.New("missing null after filename")
+			}
+			name := misc.BytesToString(data[i : i+nameEnd])
+			i += nameEnd + 1
+
+			if i+20 > len(data) {
+				return errors.New("unexpected EOF in SHA")
+			}
+			shaBytes := data[i : i+20]
+			i += 20
+
+			entries = append(entries, treeEntry{
+				mode: mode,
+				name: name,
+				sha:  shaBytes,
+			})
+
+			if mode == "40000" {
+				subPrefix := path.Join(prefix, name)
+				if err := walk(subPrefix, hex.EncodeToString(shaBytes)); err != nil {
+					return err
+				}
+			}
+		}
+		treeCache[prefix] = entries
+		return nil
+	}
+
+	if err := walk("", baseTree); err != nil {
+		return "", err
+	}
+
+	for filePath, blobSha := range updates {
+		parts := strings.Split(filePath, "/")
+		dir := strings.Join(parts[:len(parts)-1], "/")
+		name := parts[len(parts)-1]
+
+		entries := treeCache[dir]
+		found := false
+		for i, e := range entries {
+			if e.name == name {
+				if blobSha == nil {
+					// Remove TODO
+					entries = append(entries[:i], entries[i+1:]...)
+				} else {
+					entries[i].sha = blobSha
+				}
+				found = true
+				break
+			}
+		}
+		if !found && blobSha != nil {
+			entries = append(entries, treeEntry{
+				mode: "100644",
+				name: name,
+				sha:  blobSha,
+			})
+		}
+		treeCache[dir] = entries
+	}
+
+	built := make(map[string][]byte)
+	var build func(string) ([]byte, error)
+	build = func(prefix string) ([]byte, error) {
+		entries := treeCache[prefix]
+		for i, e := range entries {
+			if e.mode == "40000" {
+				subPrefix := path.Join(prefix, e.name)
+				if sha, ok := built[subPrefix]; ok {
+					entries[i].sha = sha
+					continue
+				}
+				newShaStr, err := build(subPrefix)
+				if err != nil {
+					return nil, err
+				}
+				entries[i].sha = newShaStr
+			}
+		}
+		shaStr, err := writeTree(ctx, repoPath, entries)
+		if err != nil {
+			return nil, err
+		}
+		shaBytes, err := hex.DecodeString(shaStr)
+		if err != nil {
+			return nil, err
+		}
+		built[prefix] = shaBytes
+		return shaBytes, nil
+	}
+
+	rootShaBytes, err := build("")
+	if err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(rootShaBytes), nil
+}
+
+type treeEntry struct {
+	mode string // like "100644"
+	name string // individual name
+	sha  []byte
+}
diff --git a/internal/unsorted/git_ref.go b/internal/unsorted/git_ref.go
new file mode 100644
index 0000000..d9735ba
--- /dev/null
+++ b/internal/unsorted/git_ref.go
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+)
+
+// getRefHash returns the hash of a reference given its
+// type and name as supplied in URL queries.
+func getRefHash(repo *git.Repository, refType, refName string) (refHash plumbing.Hash, err error) {
+	var ref *plumbing.Reference
+	switch refType {
+	case "":
+		if ref, err = repo.Head(); err != nil {
+			return
+		}
+		refHash = ref.Hash()
+	case "commit":
+		refHash = plumbing.NewHash(refName)
+	case "branch":
+		if ref, err = repo.Reference(plumbing.NewBranchReferenceName(refName), true); err != nil {
+			return
+		}
+		refHash = ref.Hash()
+	case "tag":
+		if ref, err = repo.Reference(plumbing.NewTagReferenceName(refName), true); err != nil {
+			return
+		}
+		refHash = ref.Hash()
+	default:
+		panic("Invalid ref type " + refType)
+	}
+	return
+}
diff --git a/internal/unsorted/http_auth.go b/internal/unsorted/http_auth.go
new file mode 100644
index 0000000..b0afa05
--- /dev/null
+++ b/internal/unsorted/http_auth.go
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+)
+
+// getUserFromRequest returns the user ID and username associated with the
+// session cookie in a given [http.Request].
+func (s *Server) getUserFromRequest(request *http.Request) (id int, username string, err error) {
+	var sessionCookie *http.Cookie
+
+	if sessionCookie, err = request.Cookie("session"); err != nil {
+		return
+	}
+
+	err = s.database.QueryRow(
+		request.Context(),
+		"SELECT user_id, COALESCE(username, '') FROM users u JOIN sessions s ON u.id = s.user_id WHERE s.session_id = $1;",
+		sessionCookie.Value,
+	).Scan(&id, &username)
+
+	return
+}
diff --git a/internal/unsorted/http_handle_branches.go b/internal/unsorted/http_handle_branches.go
new file mode 100644
index 0000000..04a9f31
--- /dev/null
+++ b/internal/unsorted/http_handle_branches.go
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/storer"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+// httpHandleRepoBranches provides the branches page in repos.
+func (s *Server) httpHandleRepoBranches(writer http.ResponseWriter, _ *http.Request, params map[string]any) {
+	var repo *git.Repository
+	var repoName string
+	var groupPath []string
+	var err error
+	var notes []string
+	var branches []string
+	var branchesIter storer.ReferenceIter
+
+	repo, repoName, groupPath = params["repo"].(*git.Repository), params["repo_name"].(string), params["group_path"].([]string)
+
+	if strings.Contains(repoName, "\n") || misc.SliceContainsNewlines(groupPath) {
+		notes = append(notes, "Path contains newlines; HTTP Git access impossible")
+	}
+
+	branchesIter, err = repo.Branches()
+	if err == nil {
+		_ = branchesIter.ForEach(func(branch *plumbing.Reference) error {
+			branches = append(branches, branch.Name().Short())
+			return nil
+		})
+	}
+	params["branches"] = branches
+
+	params["http_clone_url"] = s.genHTTPRemoteURL(groupPath, repoName)
+	params["ssh_clone_url"] = s.genSSHRemoteURL(groupPath, repoName)
+	params["notes"] = notes
+
+	s.renderTemplate(writer, "repo_branches", params)
+}
diff --git a/internal/unsorted/http_handle_group_index.go b/internal/unsorted/http_handle_group_index.go
new file mode 100644
index 0000000..41eba24
--- /dev/null
+++ b/internal/unsorted/http_handle_group_index.go
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"errors"
+	"net/http"
+	"path/filepath"
+	"strconv"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgtype"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleGroupIndex provides index pages for groups, which includes a list
+// of its subgroups and repos, as well as a form for group maintainers to
+// create repos.
+func (s *Server) httpHandleGroupIndex(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	var groupPath []string
+	var repos []nameDesc
+	var subgroups []nameDesc
+	var err error
+	var groupID int
+	var groupDesc string
+
+	groupPath = params["group_path"].([]string)
+
+	// The group itself
+	err = s.database.QueryRow(request.Context(), `
+		WITH RECURSIVE group_path_cte AS (
+			SELECT
+				id,
+				parent_group,
+				name,
+				1 AS depth
+			FROM groups
+			WHERE name = ($1::text[])[1]
+				AND parent_group IS NULL
+
+			UNION ALL
+
+			SELECT
+				g.id,
+				g.parent_group,
+				g.name,
+				group_path_cte.depth + 1
+			FROM groups g
+			JOIN group_path_cte ON g.parent_group = group_path_cte.id
+			WHERE g.name = ($1::text[])[group_path_cte.depth + 1]
+				AND group_path_cte.depth + 1 <= cardinality($1::text[])
+		)
+		SELECT c.id, COALESCE(g.description, '')
+		FROM group_path_cte c
+		JOIN groups g ON g.id = c.id
+		WHERE c.depth = cardinality($1::text[])
+	`,
+		pgtype.FlatArray[string](groupPath),
+	).Scan(&groupID, &groupDesc)
+
+	if errors.Is(err, pgx.ErrNoRows) {
+		web.ErrorPage404(s.templates, writer, params)
+		return
+	} else if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting group: "+err.Error())
+		return
+	}
+
+	// ACL
+	var count int
+	err = s.database.QueryRow(request.Context(), `
+		SELECT COUNT(*)
+		FROM user_group_roles
+		WHERE user_id = $1
+			AND group_id = $2
+	`, params["user_id"].(int), groupID).Scan(&count)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error checking access: "+err.Error())
+		return
+	}
+	directAccess := (count > 0)
+
+	if request.Method == http.MethodPost {
+		if !directAccess {
+			web.ErrorPage403(s.templates, writer, params, "You do not have direct access to this group")
+			return
+		}
+
+		repoName := request.FormValue("repo_name")
+		repoDesc := request.FormValue("repo_desc")
+		contribReq := request.FormValue("repo_contrib")
+		if repoName == "" {
+			web.ErrorPage400(s.templates, writer, params, "Repo name is required")
+			return
+		}
+
+		var newRepoID int
+		err := s.database.QueryRow(
+			request.Context(),
+			`INSERT INTO repos (name, description, group_id, contrib_requirements)
+	 VALUES ($1, $2, $3, $4)
+	 RETURNING id`,
+			repoName,
+			repoDesc,
+			groupID,
+			contribReq,
+		).Scan(&newRepoID)
+		if err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error creating repo: "+err.Error())
+			return
+		}
+
+		filePath := filepath.Join(s.config.Git.RepoDir, strconv.Itoa(newRepoID)+".git")
+
+		_, err = s.database.Exec(
+			request.Context(),
+			`UPDATE repos
+	 SET filesystem_path = $1
+	 WHERE id = $2`,
+			filePath,
+			newRepoID,
+		)
+		if err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error updating repo path: "+err.Error())
+			return
+		}
+
+		if err = s.gitInit(filePath); err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error initializing repo: "+err.Error())
+			return
+		}
+
+		misc.RedirectUnconditionally(writer, request)
+		return
+	}
+
+	// Repos
+	var rows pgx.Rows
+	rows, err = s.database.Query(request.Context(), `
+		SELECT name, COALESCE(description, '')
+		FROM repos
+		WHERE group_id = $1
+	`, groupID)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting repos: "+err.Error())
+		return
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var name, description string
+		if err = rows.Scan(&name, &description); err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error getting repos: "+err.Error())
+			return
+		}
+		repos = append(repos, nameDesc{name, description})
+	}
+	if err = rows.Err(); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting repos: "+err.Error())
+		return
+	}
+
+	// Subgroups
+	rows, err = s.database.Query(request.Context(), `
+		SELECT name, COALESCE(description, '')
+		FROM groups
+		WHERE parent_group = $1
+	`, groupID)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting subgroups: "+err.Error())
+		return
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var name, description string
+		if err = rows.Scan(&name, &description); err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error getting subgroups: "+err.Error())
+			return
+		}
+		subgroups = append(subgroups, nameDesc{name, description})
+	}
+	if err = rows.Err(); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting subgroups: "+err.Error())
+		return
+	}
+
+	params["repos"] = repos
+	params["subgroups"] = subgroups
+	params["description"] = groupDesc
+	params["direct_access"] = directAccess
+
+	s.renderTemplate(writer, "group", params)
+}
diff --git a/internal/unsorted/http_handle_index.go b/internal/unsorted/http_handle_index.go
new file mode 100644
index 0000000..458fbb4
--- /dev/null
+++ b/internal/unsorted/http_handle_index.go
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+	"runtime"
+
+	"github.com/dustin/go-humanize"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleIndex provides the main index page which includes a list of groups
+// and some global information such as SSH keys.
+func (s *Server) httpHandleIndex(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	var err error
+	var groups []nameDesc
+
+	groups, err = s.queryNameDesc(request.Context(), "SELECT name, COALESCE(description, '') FROM groups WHERE parent_group IS NULL")
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error querying groups: "+err.Error())
+		return
+	}
+	params["groups"] = groups
+
+	// Memory currently allocated
+	memstats := runtime.MemStats{} //exhaustruct:ignore
+	runtime.ReadMemStats(&memstats)
+	params["mem"] = humanize.IBytes(memstats.Alloc)
+	s.renderTemplate(writer, "index", params)
+}
diff --git a/internal/unsorted/http_handle_login.go b/internal/unsorted/http_handle_login.go
new file mode 100644
index 0000000..5386e3a
--- /dev/null
+++ b/internal/unsorted/http_handle_login.go
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"crypto/rand"
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/alexedwards/argon2id"
+	"github.com/jackc/pgx/v5"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleLogin provides the login page for local users.
+func (s *Server) httpHandleLogin(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	var username, password string
+	var userID int
+	var passwordHash string
+	var err error
+	var passwordMatches bool
+	var cookieValue string
+	var now time.Time
+	var expiry time.Time
+	var cookie http.Cookie
+
+	if request.Method != http.MethodPost {
+		s.renderTemplate(writer, "login", params)
+		return
+	}
+
+	username = request.PostFormValue("username")
+	password = request.PostFormValue("password")
+
+	err = s.database.QueryRow(request.Context(),
+		"SELECT id, COALESCE(password, '') FROM users WHERE username = $1",
+		username,
+	).Scan(&userID, &passwordHash)
+	if err != nil {
+		if errors.Is(err, pgx.ErrNoRows) {
+			params["login_error"] = "Unknown username"
+			s.renderTemplate(writer, "login", params)
+			return
+		}
+		web.ErrorPage500(s.templates, writer, params, "Error querying user information: "+err.Error())
+		return
+	}
+	if passwordHash == "" {
+		params["login_error"] = "User has no password"
+		s.renderTemplate(writer, "login", params)
+		return
+	}
+
+	if passwordMatches, err = argon2id.ComparePasswordAndHash(password, passwordHash); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error comparing password and hash: "+err.Error())
+		return
+	}
+
+	if !passwordMatches {
+		params["login_error"] = "Invalid password"
+		s.renderTemplate(writer, "login", params)
+		return
+	}
+
+	if cookieValue, err = randomUrlsafeStr(16); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting random string: "+err.Error())
+		return
+	}
+
+	now = time.Now()
+	expiry = now.Add(time.Duration(s.config.HTTP.CookieExpiry) * time.Second)
+
+	cookie = http.Cookie{
+		Name:     "session",
+		Value:    cookieValue,
+		SameSite: http.SameSiteLaxMode,
+		HttpOnly: true,
+		Secure:   false, // TODO
+		Expires:  expiry,
+		Path:     "/",
+	} //exhaustruct:ignore
+
+	http.SetCookie(writer, &cookie)
+
+	_, err = s.database.Exec(request.Context(), "INSERT INTO sessions (user_id, session_id) VALUES ($1, $2)", userID, cookieValue)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error inserting session: "+err.Error())
+		return
+	}
+
+	http.Redirect(writer, request, "/", http.StatusSeeOther)
+}
+
+// randomUrlsafeStr generates a random string of the given entropic size
+// using the URL-safe base64 encoding. The actual size of the string returned
+// will be 4*sz.
+func randomUrlsafeStr(sz int) (string, error) {
+	r := make([]byte, 3*sz)
+	_, err := rand.Read(r)
+	if err != nil {
+		return "", fmt.Errorf("error generating random string: %w", err)
+	}
+	return base64.RawURLEncoding.EncodeToString(r), nil
+}
diff --git a/internal/unsorted/http_handle_repo_commit.go b/internal/unsorted/http_handle_repo_commit.go
new file mode 100644
index 0000000..44f8f54
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_commit.go
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/filemode"
+	"github.com/go-git/go-git/v5/plumbing/format/diff"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+	"go.lindenii.runxiyu.org/forge/internal/oldgit"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// usableFilePatch is a [diff.FilePatch] that is structured in a way more
+// friendly for use in HTML templates.
+type usableFilePatch struct {
+	From   diff.File
+	To     diff.File
+	Chunks []usableChunk
+}
+
+// usableChunk is a [diff.Chunk] that is structured in a way more friendly for
+// use in HTML templates.
+type usableChunk struct {
+	Operation diff.Operation
+	Content   string
+}
+
+func (s *Server) httpHandleRepoCommit(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	var repo *git.Repository
+	var commitIDStrSpec, commitIDStrSpecNoSuffix string
+	var commitID plumbing.Hash
+	var parentCommitHash plumbing.Hash
+	var commitObj *object.Commit
+	var commitIDStr string
+	var err error
+	var patch *object.Patch
+
+	repo, commitIDStrSpec = params["repo"].(*git.Repository), params["commit_id"].(string)
+
+	commitIDStrSpecNoSuffix = strings.TrimSuffix(commitIDStrSpec, ".patch")
+	commitID = plumbing.NewHash(commitIDStrSpecNoSuffix)
+	if commitObj, err = repo.CommitObject(commitID); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting commit object: "+err.Error())
+		return
+	}
+	if commitIDStrSpecNoSuffix != commitIDStrSpec {
+		var patchStr string
+		if patchStr, err = oldgit.FmtCommitPatch(commitObj); err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error formatting patch: "+err.Error())
+			return
+		}
+		fmt.Fprintln(writer, patchStr)
+		return
+	}
+	commitIDStr = commitObj.Hash.String()
+
+	if commitIDStr != commitIDStrSpec {
+		http.Redirect(writer, request, commitIDStr, http.StatusSeeOther)
+		return
+	}
+
+	params["commit_object"] = commitObj
+	params["commit_id"] = commitIDStr
+
+	parentCommitHash, patch, err = oldgit.CommitToPatch(commitObj)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting patch from commit: "+err.Error())
+		return
+	}
+	params["parent_commit_hash"] = parentCommitHash.String()
+	params["patch"] = patch
+
+	params["file_patches"] = makeUsableFilePatches(patch)
+
+	s.renderTemplate(writer, "repo_commit", params)
+}
+
+type fakeDiffFile struct {
+	hash plumbing.Hash
+	mode filemode.FileMode
+	path string
+}
+
+func (f fakeDiffFile) Hash() plumbing.Hash {
+	return f.hash
+}
+
+func (f fakeDiffFile) Mode() filemode.FileMode {
+	return f.mode
+}
+
+func (f fakeDiffFile) Path() string {
+	return f.path
+}
+
+var nullFakeDiffFile = fakeDiffFile{ //nolint:gochecknoglobals
+	hash: plumbing.NewHash("0000000000000000000000000000000000000000"),
+	mode: misc.FirstOrPanic(filemode.New("100644")),
+	path: "",
+}
+
+func makeUsableFilePatches(patch diff.Patch) (usableFilePatches []usableFilePatch) {
+	// TODO: Remove unnecessary context
+	// TODO: Prepend "+"/"-"/" " instead of solely distinguishing based on color
+
+	for _, filePatch := range patch.FilePatches() {
+		var fromFile, toFile diff.File
+		var ufp usableFilePatch
+		chunks := []usableChunk{}
+
+		fromFile, toFile = filePatch.Files()
+		if fromFile == nil {
+			fromFile = nullFakeDiffFile
+		}
+		if toFile == nil {
+			toFile = nullFakeDiffFile
+		}
+		for _, chunk := range filePatch.Chunks() {
+			var content string
+
+			content = chunk.Content()
+			if len(content) > 0 && content[0] == '\n' {
+				content = "\n" + content
+			} // Horrible hack to fix how browsers newlines that immediately proceed <pre>
+			chunks = append(chunks, usableChunk{
+				Operation: chunk.Type(),
+				Content:   content,
+			})
+		}
+		ufp = usableFilePatch{
+			Chunks: chunks,
+			From:   fromFile,
+			To:     toFile,
+		}
+		usableFilePatches = append(usableFilePatches, ufp)
+	}
+	return
+}
diff --git a/internal/unsorted/http_handle_repo_contrib_index.go b/internal/unsorted/http_handle_repo_contrib_index.go
new file mode 100644
index 0000000..4db3846
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_contrib_index.go
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+
+	"github.com/jackc/pgx/v5"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// idTitleStatus describes properties of a merge request that needs to be
+// present in MR listings.
+type idTitleStatus struct {
+	ID     int
+	Title  string
+	Status string
+}
+
+// httpHandleRepoContribIndex provides an index to merge requests of a repo.
+func (s *Server) httpHandleRepoContribIndex(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	var rows pgx.Rows
+	var result []idTitleStatus
+	var err error
+
+	if rows, err = s.database.Query(request.Context(),
+		"SELECT repo_local_id, COALESCE(title, 'Untitled'), status FROM merge_requests WHERE repo_id = $1",
+		params["repo_id"],
+	); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error querying merge requests: "+err.Error())
+		return
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var mrID int
+		var mrTitle, mrStatus string
+		if err = rows.Scan(&mrID, &mrTitle, &mrStatus); err != nil {
+			web.ErrorPage500(s.templates, writer, params, "Error scanning merge request: "+err.Error())
+			return
+		}
+		result = append(result, idTitleStatus{mrID, mrTitle, mrStatus})
+	}
+	if err = rows.Err(); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error ranging over merge requests: "+err.Error())
+		return
+	}
+	params["merge_requests"] = result
+
+	s.renderTemplate(writer, "repo_contrib_index", params)
+}
diff --git a/internal/unsorted/http_handle_repo_contrib_one.go b/internal/unsorted/http_handle_repo_contrib_one.go
new file mode 100644
index 0000000..fb9989b
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_contrib_one.go
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleRepoContribOne provides an interface to each merge request of a
+// repo.
+func (s *Server) httpHandleRepoContribOne(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	var mrIDStr string
+	var mrIDInt int
+	var err error
+	var title, status, srcRefStr, dstBranchStr string
+	var repo *git.Repository
+	var srcRefHash plumbing.Hash
+	var dstBranchHash plumbing.Hash
+	var srcCommit, dstCommit, mergeBaseCommit *object.Commit
+	var mergeBases []*object.Commit
+
+	mrIDStr = params["mr_id"].(string)
+	mrIDInt64, err := strconv.ParseInt(mrIDStr, 10, strconv.IntSize)
+	if err != nil {
+		web.ErrorPage400(s.templates, writer, params, "Merge request ID not an integer")
+		return
+	}
+	mrIDInt = int(mrIDInt64)
+
+	if err = s.database.QueryRow(request.Context(),
+		"SELECT COALESCE(title, ''), status, source_ref, COALESCE(destination_branch, '') FROM merge_requests WHERE repo_id = $1 AND repo_local_id = $2",
+		params["repo_id"], mrIDInt,
+	).Scan(&title, &status, &srcRefStr, &dstBranchStr); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error querying merge request: "+err.Error())
+		return
+	}
+
+	repo = params["repo"].(*git.Repository)
+
+	if srcRefHash, err = getRefHash(repo, "branch", srcRefStr); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting source ref hash: "+err.Error())
+		return
+	}
+	if srcCommit, err = repo.CommitObject(srcRefHash); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting source commit: "+err.Error())
+		return
+	}
+	params["source_commit"] = srcCommit
+
+	if dstBranchStr == "" {
+		dstBranchStr = "HEAD"
+		dstBranchHash, err = getRefHash(repo, "", "")
+	} else {
+		dstBranchHash, err = getRefHash(repo, "branch", dstBranchStr)
+	}
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting destination branch hash: "+err.Error())
+		return
+	}
+
+	if dstCommit, err = repo.CommitObject(dstBranchHash); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting destination commit: "+err.Error())
+		return
+	}
+	params["destination_commit"] = dstCommit
+
+	if mergeBases, err = srcCommit.MergeBase(dstCommit); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting merge base: "+err.Error())
+		return
+	}
+
+	if len(mergeBases) < 1 {
+		web.ErrorPage500(s.templates, writer, params, "No merge base found for this merge request; these two branches do not share any common history")
+		// TODO
+		return
+	}
+
+	mergeBaseCommit = mergeBases[0]
+	params["merge_base"] = mergeBaseCommit
+
+	patch, err := mergeBaseCommit.Patch(srcCommit)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting patch: "+err.Error())
+		return
+	}
+	params["file_patches"] = makeUsableFilePatches(patch)
+
+	params["mr_title"], params["mr_status"], params["mr_source_ref"], params["mr_destination_branch"] = title, status, srcRefStr, dstBranchStr
+
+	s.renderTemplate(writer, "repo_contrib_one", params)
+}
diff --git a/internal/unsorted/http_handle_repo_index.go b/internal/unsorted/http_handle_repo_index.go
new file mode 100644
index 0000000..f2bb480
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_index.go
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+
+	"go.lindenii.runxiyu.org/forge/internal/git2c"
+	"go.lindenii.runxiyu.org/forge/internal/render"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleRepoIndex provides the front page of a repo using git2d.
+func (s *Server) httpHandleRepoIndex(w http.ResponseWriter, req *http.Request, params map[string]any) {
+	repoName := params["repo_name"].(string)
+	groupPath := params["group_path"].([]string)
+
+	_, repoPath, _, _, _, _, _ := s.getRepoInfo(req.Context(), groupPath, repoName, "") // TODO: Don't use getRepoInfo
+
+	client, err := git2c.NewClient(s.config.Git.Socket)
+	if err != nil {
+		web.ErrorPage500(s.templates, w, params, err.Error())
+		return
+	}
+	defer client.Close()
+
+	commits, readme, err := client.Cmd1(repoPath)
+	if err != nil {
+		web.ErrorPage500(s.templates, w, params, err.Error())
+		return
+	}
+
+	params["commits"] = commits
+	params["readme_filename"] = readme.Filename
+	_, params["readme"] = render.Readme(readme.Content, readme.Filename)
+
+	s.renderTemplate(w, "repo_index", params)
+
+	// TODO: Caching
+}
diff --git a/internal/unsorted/http_handle_repo_info.go b/internal/unsorted/http_handle_repo_info.go
new file mode 100644
index 0000000..e23b1d2
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_info.go
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os/exec"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+// httpHandleRepoInfo provides advertised refs of a repo for use in Git's Smart
+// HTTP protocol.
+//
+// TODO: Reject access from web browsers.
+func (s *Server) httpHandleRepoInfo(writer http.ResponseWriter, request *http.Request, params map[string]any) (err error) {
+	groupPath := params["group_path"].([]string)
+	repoName := params["repo_name"].(string)
+	var repoPath string
+
+	if err := s.database.QueryRow(request.Context(), `
+	WITH RECURSIVE group_path_cte AS (
+		-- Start: match the first name in the path where parent_group IS NULL
+		SELECT
+			id,
+			parent_group,
+			name,
+			1 AS depth
+		FROM groups
+		WHERE name = ($1::text[])[1]
+			AND parent_group IS NULL
+	
+		UNION ALL
+	
+		-- Recurse: jion next segment of the path
+		SELECT
+			g.id,
+			g.parent_group,
+			g.name,
+			group_path_cte.depth + 1
+		FROM groups g
+		JOIN group_path_cte ON g.parent_group = group_path_cte.id
+		WHERE g.name = ($1::text[])[group_path_cte.depth + 1]
+			AND group_path_cte.depth + 1 <= cardinality($1::text[])
+	)
+	SELECT r.filesystem_path
+	FROM group_path_cte c
+	JOIN repos r ON r.group_id = c.id
+	WHERE c.depth = cardinality($1::text[])
+		AND r.name = $2
+	`,
+		pgtype.FlatArray[string](groupPath),
+		repoName,
+	).Scan(&repoPath); err != nil {
+		return err
+	}
+
+	writer.Header().Set("Content-Type", "application/x-git-upload-pack-advertisement")
+	writer.WriteHeader(http.StatusOK)
+
+	cmd := exec.Command("git", "upload-pack", "--stateless-rpc", "--advertise-refs", repoPath)
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_ = stdout.Close()
+	}()
+	cmd.Stderr = cmd.Stdout
+
+	if err = cmd.Start(); err != nil {
+		return err
+	}
+
+	if err = packLine(writer, "# service=git-upload-pack\n"); err != nil {
+		return err
+	}
+
+	if err = packFlush(writer); err != nil {
+		return
+	}
+
+	if _, err = io.Copy(writer, stdout); err != nil {
+		return err
+	}
+
+	if err = cmd.Wait(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Taken from https://github.com/icyphox/legit, MIT license.
+func packLine(w io.Writer, s string) error {
+	_, err := fmt.Fprintf(w, "%04x%s", len(s)+4, s)
+	return err
+}
+
+// Taken from https://github.com/icyphox/legit, MIT license.
+func packFlush(w io.Writer) error {
+	_, err := fmt.Fprint(w, "0000")
+	return err
+}
diff --git a/internal/unsorted/http_handle_repo_log.go b/internal/unsorted/http_handle_repo_log.go
new file mode 100644
index 0000000..c25c60b
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_log.go
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+
+	"github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/plumbing"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleRepoLog provides a page with a complete Git log.
+//
+// TODO: This currently provides all commits in the branch. It should be
+// paginated and cached instead.
+func (s *Server) httpHandleRepoLog(writer http.ResponseWriter, _ *http.Request, params map[string]any) {
+	var repo *git.Repository
+	var refHash plumbing.Hash
+	var err error
+
+	repo = params["repo"].(*git.Repository)
+
+	if refHash, err = getRefHash(repo, params["ref_type"].(string), params["ref_name"].(string)); err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting ref hash: "+err.Error())
+		return
+	}
+
+	logOptions := git.LogOptions{From: refHash} //exhaustruct:ignore
+	commitIter, err := repo.Log(&logOptions)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, "Error getting recent commits: "+err.Error())
+		return
+	}
+	params["commits"], params["commits_err"] = commitIterSeqErr(commitIter)
+
+	s.renderTemplate(writer, "repo_log", params)
+}
diff --git a/internal/unsorted/http_handle_repo_raw.go b/internal/unsorted/http_handle_repo_raw.go
new file mode 100644
index 0000000..7849d48
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_raw.go
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"fmt"
+	"html/template"
+	"net/http"
+	"strings"
+
+	"go.lindenii.runxiyu.org/forge/internal/git2c"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleRepoRaw serves raw files, or directory listings that point to raw
+// files.
+func (s *Server) httpHandleRepoRaw(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	repoName := params["repo_name"].(string)
+	groupPath := params["group_path"].([]string)
+	rawPathSpec := params["rest"].(string)
+	pathSpec := strings.TrimSuffix(rawPathSpec, "/")
+	params["path_spec"] = pathSpec
+
+	_, repoPath, _, _, _, _, _ := s.getRepoInfo(request.Context(), groupPath, repoName, "")
+
+	client, err := git2c.NewClient(s.config.Git.Socket)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, err.Error())
+		return
+	}
+	defer client.Close()
+
+	files, content, err := client.Cmd2(repoPath, pathSpec)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, err.Error())
+		return
+	}
+
+	switch {
+	case files != nil:
+		params["files"] = files
+		params["readme_filename"] = "README.md"
+		params["readme"] = template.HTML("<p>README rendering here is WIP again</p>") // TODO
+		s.renderTemplate(writer, "repo_raw_dir", params)
+	case content != "":
+		if misc.RedirectNoDir(writer, request) {
+			return
+		}
+		writer.Header().Set("Content-Type", "application/octet-stream")
+		fmt.Fprint(writer, content)
+	default:
+		web.ErrorPage500(s.templates, writer, params, "Unknown error fetching repo raw data")
+	}
+}
diff --git a/internal/unsorted/http_handle_repo_tree.go b/internal/unsorted/http_handle_repo_tree.go
new file mode 100644
index 0000000..cbbba98
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_tree.go
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"html/template"
+	"net/http"
+	"strings"
+
+	"go.lindenii.runxiyu.org/forge/internal/git2c"
+	"go.lindenii.runxiyu.org/forge/internal/render"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleRepoTree provides a friendly, syntax-highlighted view of
+// individual files, and provides directory views that link to these files.
+//
+// TODO: Do not highlight files that are too large.
+func (s *Server) httpHandleRepoTree(writer http.ResponseWriter, request *http.Request, params map[string]any) {
+	repoName := params["repo_name"].(string)
+	groupPath := params["group_path"].([]string)
+	rawPathSpec := params["rest"].(string)
+	pathSpec := strings.TrimSuffix(rawPathSpec, "/")
+	params["path_spec"] = pathSpec
+
+	_, repoPath, _, _, _, _, _ := s.getRepoInfo(request.Context(), groupPath, repoName, "")
+
+	client, err := git2c.NewClient(s.config.Git.Socket)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, err.Error())
+		return
+	}
+	defer client.Close()
+
+	files, content, err := client.Cmd2(repoPath, pathSpec)
+	if err != nil {
+		web.ErrorPage500(s.templates, writer, params, err.Error())
+		return
+	}
+
+	switch {
+	case files != nil:
+		params["files"] = files
+		params["readme_filename"] = "README.md"
+		params["readme"] = template.HTML("<p>README rendering here is WIP again</p>") // TODO
+		s.renderTemplate(writer, "repo_tree_dir", params)
+	case content != "":
+		rendered := render.Highlight(pathSpec, content)
+		params["file_contents"] = rendered
+		s.renderTemplate(writer, "repo_tree_file", params)
+	default:
+		web.ErrorPage500(s.templates, writer, params, "Unknown object type, something is seriously wrong")
+	}
+}
diff --git a/internal/unsorted/http_handle_repo_upload_pack.go b/internal/unsorted/http_handle_repo_upload_pack.go
new file mode 100644
index 0000000..df8bef4
--- /dev/null
+++ b/internal/unsorted/http_handle_repo_upload_pack.go
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+// httpHandleUploadPack handles incoming Git fetch/pull/clone's over the Smart
+// HTTP protocol.
+func (s *Server) httpHandleUploadPack(writer http.ResponseWriter, request *http.Request, params map[string]any) (err error) {
+	var groupPath []string
+	var repoName string
+	var repoPath string
+	var stdout io.ReadCloser
+	var stdin io.WriteCloser
+	var cmd *exec.Cmd
+
+	groupPath, repoName = params["group_path"].([]string), params["repo_name"].(string)
+
+	if err := s.database.QueryRow(request.Context(), `
+	WITH RECURSIVE group_path_cte AS (
+		-- Start: match the first name in the path where parent_group IS NULL
+		SELECT
+			id,
+			parent_group,
+			name,
+			1 AS depth
+		FROM groups
+		WHERE name = ($1::text[])[1]
+			AND parent_group IS NULL
+	
+		UNION ALL
+	
+		-- Recurse: jion next segment of the path
+		SELECT
+			g.id,
+			g.parent_group,
+			g.name,
+			group_path_cte.depth + 1
+		FROM groups g
+		JOIN group_path_cte ON g.parent_group = group_path_cte.id
+		WHERE g.name = ($1::text[])[group_path_cte.depth + 1]
+			AND group_path_cte.depth + 1 <= cardinality($1::text[])
+	)
+	SELECT r.filesystem_path
+	FROM group_path_cte c
+	JOIN repos r ON r.group_id = c.id
+	WHERE c.depth = cardinality($1::text[])
+		AND r.name = $2
+	`,
+		pgtype.FlatArray[string](groupPath),
+		repoName,
+	).Scan(&repoPath); err != nil {
+		return err
+	}
+
+	writer.Header().Set("Content-Type", "application/x-git-upload-pack-result")
+	writer.Header().Set("Connection", "Keep-Alive")
+	writer.Header().Set("Transfer-Encoding", "chunked")
+	writer.WriteHeader(http.StatusOK)
+
+	cmd = exec.Command("git", "upload-pack", "--stateless-rpc", repoPath)
+	cmd.Env = append(os.Environ(), "LINDENII_FORGE_HOOKS_SOCKET_PATH="+s.config.Hooks.Socket)
+	if stdout, err = cmd.StdoutPipe(); err != nil {
+		return err
+	}
+	cmd.Stderr = cmd.Stdout
+	defer func() {
+		_ = stdout.Close()
+	}()
+
+	if stdin, err = cmd.StdinPipe(); err != nil {
+		return err
+	}
+	defer func() {
+		_ = stdin.Close()
+	}()
+
+	if err = cmd.Start(); err != nil {
+		return err
+	}
+
+	if _, err = io.Copy(stdin, request.Body); err != nil {
+		return err
+	}
+
+	if err = stdin.Close(); err != nil {
+		return err
+	}
+
+	if _, err = io.Copy(writer, stdout); err != nil {
+		return err
+	}
+
+	if err = cmd.Wait(); err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/internal/unsorted/http_handle_users.go b/internal/unsorted/http_handle_users.go
new file mode 100644
index 0000000..7b0f657
--- /dev/null
+++ b/internal/unsorted/http_handle_users.go
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/http"
+
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// httpHandleUsers is a useless stub.
+func (s *Server) httpHandleUsers(writer http.ResponseWriter, _ *http.Request, params map[string]any) {
+	web.ErrorPage501(s.templates, writer, params)
+}
diff --git a/internal/unsorted/http_server.go b/internal/unsorted/http_server.go
new file mode 100644
index 0000000..6710df3
--- /dev/null
+++ b/internal/unsorted/http_server.go
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"errors"
+	"log/slog"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+
+	"github.com/jackc/pgx/v5"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+	"go.lindenii.runxiyu.org/forge/internal/web"
+)
+
+// ServeHTTP handles all incoming HTTP requests and routes them to the correct
+// location.
+//
+// TODO: This function is way too large.
+func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
+	var remoteAddr string
+	if s.config.HTTP.ReverseProxy {
+		remoteAddrs, ok := request.Header["X-Forwarded-For"]
+		if ok && len(remoteAddrs) == 1 {
+			remoteAddr = remoteAddrs[0]
+		} else {
+			remoteAddr = request.RemoteAddr
+		}
+	} else {
+		remoteAddr = request.RemoteAddr
+	}
+	slog.Info("incoming http", "addr", remoteAddr, "method", request.Method, "uri", request.RequestURI)
+
+	var segments []string
+	var err error
+	var sepIndex int
+	params := make(map[string]any)
+
+	if segments, _, err = misc.ParseReqURI(request.RequestURI); err != nil {
+		web.ErrorPage400(s.templates, writer, params, "Error parsing request URI: "+err.Error())
+		return
+	}
+	dirMode := false
+	if segments[len(segments)-1] == "" {
+		dirMode = true
+		segments = segments[:len(segments)-1]
+	}
+
+	params["url_segments"] = segments
+	params["dir_mode"] = dirMode
+	params["global"] = s.globalData
+	var userID int // 0 for none
+	userID, params["username"], err = s.getUserFromRequest(request)
+	params["user_id"] = userID
+	if err != nil && !errors.Is(err, http.ErrNoCookie) && !errors.Is(err, pgx.ErrNoRows) {
+		web.ErrorPage500(s.templates, writer, params, "Error getting user info from request: "+err.Error())
+		return
+	}
+
+	if userID == 0 {
+		params["user_id_string"] = ""
+	} else {
+		params["user_id_string"] = strconv.Itoa(userID)
+	}
+
+	for _, v := range segments {
+		if strings.Contains(v, ":") {
+			web.ErrorPage400Colon(s.templates, writer, params)
+			return
+		}
+	}
+
+	if len(segments) == 0 {
+		s.httpHandleIndex(writer, request, params)
+		return
+	}
+
+	if segments[0] == "-" {
+		if len(segments) < 2 {
+			web.ErrorPage404(s.templates, writer, params)
+			return
+		} else if len(segments) == 2 && misc.RedirectDir(writer, request) {
+			return
+		}
+
+		switch segments[1] {
+		case "static":
+			s.staticHandler.ServeHTTP(writer, request)
+			return
+		case "source":
+			s.sourceHandler.ServeHTTP(writer, request)
+			return
+		}
+	}
+
+	if segments[0] == "-" {
+		switch segments[1] {
+		case "login":
+			s.httpHandleLogin(writer, request, params)
+			return
+		case "users":
+			s.httpHandleUsers(writer, request, params)
+			return
+		default:
+			web.ErrorPage404(s.templates, writer, params)
+			return
+		}
+	}
+
+	sepIndex = -1
+	for i, part := range segments {
+		if part == "-" {
+			sepIndex = i
+			break
+		}
+	}
+
+	params["separator_index"] = sepIndex
+
+	var groupPath []string
+	var moduleType string
+	var moduleName string
+
+	if sepIndex > 0 {
+		groupPath = segments[:sepIndex]
+	} else {
+		groupPath = segments
+	}
+	params["group_path"] = groupPath
+
+	switch {
+	case sepIndex == -1:
+		if misc.RedirectDir(writer, request) {
+			return
+		}
+		s.httpHandleGroupIndex(writer, request, params)
+	case len(segments) == sepIndex+1:
+		web.ErrorPage404(s.templates, writer, params)
+		return
+	case len(segments) == sepIndex+2:
+		web.ErrorPage404(s.templates, writer, params)
+		return
+	default:
+		moduleType = segments[sepIndex+1]
+		moduleName = segments[sepIndex+2]
+		switch moduleType {
+		case "repos":
+			params["repo_name"] = moduleName
+
+			if len(segments) > sepIndex+3 {
+				switch segments[sepIndex+3] {
+				case "info":
+					if err = s.httpHandleRepoInfo(writer, request, params); err != nil {
+						web.ErrorPage500(s.templates, writer, params, err.Error())
+					}
+					return
+				case "git-upload-pack":
+					if err = s.httpHandleUploadPack(writer, request, params); err != nil {
+						web.ErrorPage500(s.templates, writer, params, err.Error())
+					}
+					return
+				}
+			}
+
+			if params["ref_type"], params["ref_name"], err = misc.GetParamRefTypeName(request); err != nil {
+				if errors.Is(err, misc.ErrNoRefSpec) {
+					params["ref_type"] = ""
+				} else {
+					web.ErrorPage400(s.templates, writer, params, "Error querying ref type: "+err.Error())
+					return
+				}
+			}
+
+			if params["repo"], params["repo_description"], params["repo_id"], _, err = s.openRepo(request.Context(), groupPath, moduleName); err != nil {
+				web.ErrorPage500(s.templates, writer, params, "Error opening repo: "+err.Error())
+				return
+			}
+
+			repoURLRoot := "/"
+			for _, part := range segments[:sepIndex+3] {
+				repoURLRoot = repoURLRoot + url.PathEscape(part) + "/"
+			}
+			params["repo_url_root"] = repoURLRoot
+			params["repo_patch_mailing_list"] = repoURLRoot[1:len(repoURLRoot)-1] + "@" + s.config.LMTP.Domain
+			params["http_clone_url"] = s.genHTTPRemoteURL(groupPath, moduleName)
+			params["ssh_clone_url"] = s.genSSHRemoteURL(groupPath, moduleName)
+
+			if len(segments) == sepIndex+3 {
+				if misc.RedirectDir(writer, request) {
+					return
+				}
+				s.httpHandleRepoIndex(writer, request, params)
+				return
+			}
+
+			repoFeature := segments[sepIndex+3]
+			switch repoFeature {
+			case "tree":
+				if misc.AnyContain(segments[sepIndex+4:], "/") {
+					web.ErrorPage400(s.templates, writer, params, "Repo tree paths may not contain slashes in any segments")
+					return
+				}
+				if dirMode {
+					params["rest"] = strings.Join(segments[sepIndex+4:], "/") + "/"
+				} else {
+					params["rest"] = strings.Join(segments[sepIndex+4:], "/")
+				}
+				if len(segments) < sepIndex+5 && misc.RedirectDir(writer, request) {
+					return
+				}
+				s.httpHandleRepoTree(writer, request, params)
+			case "branches":
+				if misc.RedirectDir(writer, request) {
+					return
+				}
+				s.httpHandleRepoBranches(writer, request, params)
+				return
+			case "raw":
+				if misc.AnyContain(segments[sepIndex+4:], "/") {
+					web.ErrorPage400(s.templates, writer, params, "Repo tree paths may not contain slashes in any segments")
+					return
+				}
+				if dirMode {
+					params["rest"] = strings.Join(segments[sepIndex+4:], "/") + "/"
+				} else {
+					params["rest"] = strings.Join(segments[sepIndex+4:], "/")
+				}
+				if len(segments) < sepIndex+5 && misc.RedirectDir(writer, request) {
+					return
+				}
+				s.httpHandleRepoRaw(writer, request, params)
+			case "log":
+				if len(segments) > sepIndex+4 {
+					web.ErrorPage400(s.templates, writer, params, "Too many parameters")
+					return
+				}
+				if misc.RedirectDir(writer, request) {
+					return
+				}
+				s.httpHandleRepoLog(writer, request, params)
+			case "commit":
+				if len(segments) != sepIndex+5 {
+					web.ErrorPage400(s.templates, writer, params, "Incorrect number of parameters")
+					return
+				}
+				if misc.RedirectNoDir(writer, request) {
+					return
+				}
+				params["commit_id"] = segments[sepIndex+4]
+				s.httpHandleRepoCommit(writer, request, params)
+			case "contrib":
+				if misc.RedirectDir(writer, request) {
+					return
+				}
+				switch len(segments) {
+				case sepIndex + 4:
+					s.httpHandleRepoContribIndex(writer, request, params)
+				case sepIndex + 5:
+					params["mr_id"] = segments[sepIndex+4]
+					s.httpHandleRepoContribOne(writer, request, params)
+				default:
+					web.ErrorPage400(s.templates, writer, params, "Too many parameters")
+				}
+			default:
+				web.ErrorPage404(s.templates, writer, params)
+				return
+			}
+		default:
+			web.ErrorPage404(s.templates, writer, params)
+			return
+		}
+	}
+}
diff --git a/internal/unsorted/http_template.go b/internal/unsorted/http_template.go
new file mode 100644
index 0000000..db44e4c
--- /dev/null
+++ b/internal/unsorted/http_template.go
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"log/slog"
+	"net/http"
+)
+
+// renderTemplate abstracts out the annoyances of reporting template rendering
+// errors.
+func (s *Server) renderTemplate(w http.ResponseWriter, templateName string, params map[string]any) {
+	if err := s.templates.ExecuteTemplate(w, templateName, params); err != nil {
+		http.Error(w, "error rendering template: "+err.Error(), http.StatusInternalServerError)
+		slog.Error("error rendering template", "error", err.Error())
+	}
+}
diff --git a/internal/unsorted/lmtp_handle_patch.go b/internal/unsorted/lmtp_handle_patch.go
new file mode 100644
index 0000000..1a23422
--- /dev/null
+++ b/internal/unsorted/lmtp_handle_patch.go
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/hex"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
+	"github.com/bluekeyes/go-gitdiff/gitdiff"
+	"github.com/go-git/go-git/v5"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+func (s *Server) lmtpHandlePatch(session *lmtpSession, groupPath []string, repoName string, mbox io.Reader) (err error) {
+	var diffFiles []*gitdiff.File
+	var preamble string
+	if diffFiles, preamble, err = gitdiff.Parse(mbox); err != nil {
+		return fmt.Errorf("failed to parse patch: %w", err)
+	}
+
+	var header *gitdiff.PatchHeader
+	if header, err = gitdiff.ParsePatchHeader(preamble); err != nil {
+		return fmt.Errorf("failed to parse patch headers: %w", err)
+	}
+
+	var repo *git.Repository
+	var fsPath string
+	repo, _, _, fsPath, err = s.openRepo(session.ctx, groupPath, repoName)
+	if err != nil {
+		return fmt.Errorf("failed to open repo: %w", err)
+	}
+
+	headRef, err := repo.Head()
+	if err != nil {
+		return fmt.Errorf("failed to get repo head hash: %w", err)
+	}
+	headCommit, err := repo.CommitObject(headRef.Hash())
+	if err != nil {
+		return fmt.Errorf("failed to get repo head commit: %w", err)
+	}
+	headTree, err := headCommit.Tree()
+	if err != nil {
+		return fmt.Errorf("failed to get repo head tree: %w", err)
+	}
+
+	headTreeHash := headTree.Hash.String()
+
+	blobUpdates := make(map[string][]byte)
+	for _, diffFile := range diffFiles {
+		sourceFile, err := headTree.File(diffFile.OldName)
+		if err != nil {
+			return fmt.Errorf("failed to get file at old name %#v: %w", diffFile.OldName, err)
+		}
+		sourceString, err := sourceFile.Contents()
+		if err != nil {
+			return fmt.Errorf("failed to get contents: %w", err)
+		}
+
+		sourceBuf := bytes.NewReader(misc.StringToBytes(sourceString))
+		var patchedBuf bytes.Buffer
+		if err := gitdiff.Apply(&patchedBuf, sourceBuf, diffFile); err != nil {
+			return fmt.Errorf("failed to apply patch: %w", err)
+		}
+
+		var hashBuf bytes.Buffer
+
+		// It's really difficult to do this via go-git so we're just
+		// going to use upstream git for now.
+		// TODO
+		cmd := exec.CommandContext(session.ctx, "git", "hash-object", "-w", "-t", "blob", "--stdin")
+		cmd.Env = append(os.Environ(), "GIT_DIR="+fsPath)
+		cmd.Stdout = &hashBuf
+		cmd.Stdin = &patchedBuf
+		if err := cmd.Run(); err != nil {
+			return fmt.Errorf("failed to run git hash-object: %w", err)
+		}
+
+		newHashStr := strings.TrimSpace(hashBuf.String())
+		newHash, err := hex.DecodeString(newHashStr)
+		if err != nil {
+			return fmt.Errorf("failed to decode hex string from git: %w", err)
+		}
+
+		blobUpdates[diffFile.NewName] = newHash
+		if diffFile.NewName != diffFile.OldName {
+			blobUpdates[diffFile.OldName] = nil // Mark for deletion.
+		}
+	}
+
+	newTreeSha, err := buildTreeRecursive(session.ctx, fsPath, headTreeHash, blobUpdates)
+	if err != nil {
+		return fmt.Errorf("failed to recursively build a tree: %w", err)
+	}
+
+	commitMsg := header.Title
+	if header.Body != "" {
+		commitMsg += "\n\n" + header.Body
+	}
+
+	env := append(os.Environ(),
+		"GIT_DIR="+fsPath,
+		"GIT_AUTHOR_NAME="+header.Author.Name,
+		"GIT_AUTHOR_EMAIL="+header.Author.Email,
+		"GIT_AUTHOR_DATE="+header.AuthorDate.Format(time.RFC3339),
+	)
+	commitCmd := exec.CommandContext(session.ctx, "git", "commit-tree", newTreeSha, "-p", headCommit.Hash.String(), "-m", commitMsg)
+	commitCmd.Env = env
+
+	var commitOut bytes.Buffer
+	commitCmd.Stdout = &commitOut
+	if err := commitCmd.Run(); err != nil {
+		return fmt.Errorf("failed to commit tree: %w", err)
+	}
+	newCommitSha := strings.TrimSpace(commitOut.String())
+
+	newBranchName := rand.Text()
+
+	refCmd := exec.CommandContext(session.ctx, "git", "update-ref", "refs/heads/contrib/"+newBranchName, newCommitSha) //#nosec G204
+	refCmd.Env = append(os.Environ(), "GIT_DIR="+fsPath)
+	if err := refCmd.Run(); err != nil {
+		return fmt.Errorf("failed to update ref: %w", err)
+	}
+
+	return nil
+}
diff --git a/internal/unsorted/lmtp_server.go b/internal/unsorted/lmtp_server.go
new file mode 100644
index 0000000..13c74c8
--- /dev/null
+++ b/internal/unsorted/lmtp_server.go
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+// SPDX-FileCopyrightText: Copyright (c) 2024 Robin Jarry <robin@jarry.cc>
+
+package unsorted
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"log/slog"
+	"net"
+	"strings"
+	"time"
+
+	"github.com/emersion/go-message"
+	"github.com/emersion/go-smtp"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+type lmtpHandler struct{}
+
+type lmtpSession struct {
+	from   string
+	to     []string
+	ctx    context.Context
+	cancel context.CancelFunc
+	s      Server
+}
+
+func (session *lmtpSession) Reset() {
+	session.from = ""
+	session.to = nil
+}
+
+func (session *lmtpSession) Logout() error {
+	session.cancel()
+	return nil
+}
+
+func (session *lmtpSession) AuthPlain(_, _ string) error {
+	return nil
+}
+
+func (session *lmtpSession) Mail(from string, _ *smtp.MailOptions) error {
+	session.from = from
+	return nil
+}
+
+func (session *lmtpSession) Rcpt(to string, _ *smtp.RcptOptions) error {
+	session.to = append(session.to, to)
+	return nil
+}
+
+func (*lmtpHandler) NewSession(_ *smtp.Conn) (smtp.Session, error) {
+	ctx, cancel := context.WithCancel(context.Background())
+	session := &lmtpSession{
+		ctx:    ctx,
+		cancel: cancel,
+	}
+	return session, nil
+}
+
+func (s *Server) serveLMTP(listener net.Listener) error {
+	smtpServer := smtp.NewServer(&lmtpHandler{})
+	smtpServer.LMTP = true
+	smtpServer.Domain = s.config.LMTP.Domain
+	smtpServer.Addr = s.config.LMTP.Socket
+	smtpServer.WriteTimeout = time.Duration(s.config.LMTP.WriteTimeout) * time.Second
+	smtpServer.ReadTimeout = time.Duration(s.config.LMTP.ReadTimeout) * time.Second
+	smtpServer.EnableSMTPUTF8 = true
+	return smtpServer.Serve(listener)
+}
+
+func (session *lmtpSession) Data(r io.Reader) error {
+	var (
+		email *message.Entity
+		from  string
+		to    []string
+		err   error
+		buf   bytes.Buffer
+		data  []byte
+		n     int64
+	)
+
+	n, err = io.CopyN(&buf, r, session.s.config.LMTP.MaxSize)
+	switch {
+	case n == session.s.config.LMTP.MaxSize:
+		err = errors.New("Message too big.")
+		// drain whatever is left in the pipe
+		_, _ = io.Copy(io.Discard, r)
+		goto end
+	case errors.Is(err, io.EOF):
+		// message was smaller than max size
+		break
+	case err != nil:
+		goto end
+	}
+
+	data = buf.Bytes()
+
+	email, err = message.Read(bytes.NewReader(data))
+	if err != nil && message.IsUnknownCharset(err) {
+		goto end
+	}
+
+	switch strings.ToLower(email.Header.Get("Auto-Submitted")) {
+	case "auto-generated", "auto-replied":
+		// Disregard automatic emails like OOO replies
+		slog.Info("ignoring automatic message",
+			"from", session.from,
+			"to", strings.Join(session.to, ","),
+			"message-id", email.Header.Get("Message-Id"),
+			"subject", email.Header.Get("Subject"),
+		)
+		goto end
+	}
+
+	slog.Info("message received",
+		"from", session.from,
+		"to", strings.Join(session.to, ","),
+		"message-id", email.Header.Get("Message-Id"),
+		"subject", email.Header.Get("Subject"),
+	)
+
+	// Make local copies of the values before to ensure the references will
+	// still be valid when the task is run.
+	from = session.from
+	to = session.to
+
+	_ = from
+
+	for _, to := range to {
+		if !strings.HasSuffix(to, "@"+session.s.config.LMTP.Domain) {
+			continue
+		}
+		localPart := to[:len(to)-len("@"+session.s.config.LMTP.Domain)]
+		var segments []string
+		segments, err = misc.PathToSegments(localPart)
+		if err != nil {
+			// TODO: Should the entire email fail or should we just
+			// notify them out of band?
+			err = fmt.Errorf("cannot parse path: %w", err)
+			goto end
+		}
+		sepIndex := -1
+		for i, part := range segments {
+			if part == "-" {
+				sepIndex = i
+				break
+			}
+		}
+		if segments[len(segments)-1] == "" {
+			segments = segments[:len(segments)-1] // We don't care about dir or not.
+		}
+		if sepIndex == -1 || len(segments) <= sepIndex+2 {
+			err = errors.New("illegal path")
+			goto end
+		}
+
+		mbox := bytes.Buffer{}
+		if _, err = fmt.Fprint(&mbox, "From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001\r\n"); err != nil {
+			slog.Error("error handling patch... malloc???", "error", err)
+			goto end
+		}
+		data = bytes.ReplaceAll(data, []byte("\r\n"), []byte("\n"))
+		if _, err = mbox.Write(data); err != nil {
+			slog.Error("error handling patch... malloc???", "error", err)
+			goto end
+		}
+		// TODO: Is mbox's From escaping necessary here?
+
+		groupPath := segments[:sepIndex]
+		moduleType := segments[sepIndex+1]
+		moduleName := segments[sepIndex+2]
+		switch moduleType {
+		case "repos":
+			err = session.s.lmtpHandlePatch(session, groupPath, moduleName, &mbox)
+			if err != nil {
+				slog.Error("error handling patch", "error", err)
+				goto end
+			}
+		default:
+			err = errors.New("Emailing any endpoint other than repositories, is not supported yet.") // TODO
+			goto end
+		}
+	}
+
+end:
+	session.to = nil
+	session.from = ""
+	switch err {
+	case nil:
+		return nil
+	default:
+		return &smtp.SMTPError{
+			Code:         550,
+			Message:      "Permanent failure: " + err.Error(),
+			EnhancedCode: [3]int{5, 7, 1},
+		}
+	}
+}
diff --git a/internal/unsorted/remote_url.go b/internal/unsorted/remote_url.go
new file mode 100644
index 0000000..51740c4
--- /dev/null
+++ b/internal/unsorted/remote_url.go
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"net/url"
+	"strings"
+
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+// We don't use path.Join because it collapses multiple slashes into one.
+
+// genSSHRemoteURL generates SSH remote URLs from a given group path and repo
+// name.
+func (s *Server) genSSHRemoteURL(groupPath []string, repoName string) string {
+	return strings.TrimSuffix(s.config.SSH.Root, "/") + "/" + misc.SegmentsToURL(groupPath) + "/-/repos/" + url.PathEscape(repoName)
+}
+
+// genHTTPRemoteURL generates HTTP remote URLs from a given group path and repo
+// name.
+func (s *Server) genHTTPRemoteURL(groupPath []string, repoName string) string {
+	return strings.TrimSuffix(s.config.HTTP.Root, "/") + "/" + misc.SegmentsToURL(groupPath) + "/-/repos/" + url.PathEscape(repoName)
+}
diff --git a/internal/unsorted/resources.go b/internal/unsorted/resources.go
new file mode 100644
index 0000000..d09ee60
--- /dev/null
+++ b/internal/unsorted/resources.go
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"html/template"
+	"io/fs"
+
+	"github.com/tdewolff/minify/v2"
+	"github.com/tdewolff/minify/v2/html"
+	"go.lindenii.runxiyu.org/forge/internal/embed"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+// loadTemplates minifies and loads HTML templates.
+func (s *Server) loadTemplates() (err error) {
+	minifier := minify.New()
+	minifierOptions := html.Minifier{
+		TemplateDelims:      [2]string{"{{", "}}"},
+		KeepDefaultAttrVals: true,
+	} //exhaustruct:ignore
+	minifier.Add("text/html", &minifierOptions)
+
+	s.templates = template.New("templates").Funcs(template.FuncMap{
+		"first_line":        misc.FirstLine,
+		"path_escape":       misc.PathEscape,
+		"query_escape":      misc.QueryEscape,
+		"dereference_error": misc.DereferenceOrZero[error],
+		"minus":             misc.Minus,
+	})
+
+	err = fs.WalkDir(embed.Resources, "templates", func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if !d.IsDir() {
+			content, err := fs.ReadFile(embed.Resources, path)
+			if err != nil {
+				return err
+			}
+
+			minified, err := minifier.Bytes("text/html", content)
+			if err != nil {
+				return err
+			}
+
+			_, err = s.templates.Parse(misc.BytesToString(minified))
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	return err
+}
diff --git a/internal/unsorted/server.go b/internal/unsorted/server.go
new file mode 100644
index 0000000..12da5cb
--- /dev/null
+++ b/internal/unsorted/server.go
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"errors"
+	"html/template"
+	"io/fs"
+	"log"
+	"log/slog"
+	"net"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"syscall"
+	"time"
+
+	"go.lindenii.runxiyu.org/forge/internal/database"
+	"go.lindenii.runxiyu.org/forge/internal/embed"
+	"go.lindenii.runxiyu.org/forge/internal/irc"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+	"go.lindenii.runxiyu.org/lindenii-common/cmap"
+	goSSH "golang.org/x/crypto/ssh"
+)
+
+type Server struct {
+	config Config
+
+	database database.Database
+
+	sourceHandler http.Handler
+	staticHandler http.Handler
+
+	// globalData is passed as "global" when rendering HTML templates.
+	globalData map[string]any
+
+	serverPubkeyString string
+	serverPubkeyFP     string
+	serverPubkey       goSSH.PublicKey
+
+	// packPasses contains hook cookies mapped to their packPass.
+	packPasses cmap.Map[string, packPass]
+
+	templates *template.Template
+
+	ircBot *irc.Bot
+
+	ready bool
+}
+
+func NewServer(configPath string) (*Server, error) {
+	s := &Server{}
+
+	if err := s.loadConfig(configPath); err != nil {
+		return s, err
+	}
+
+	s.sourceHandler = http.StripPrefix(
+		"/-/source/",
+		http.FileServer(http.FS(embed.Source)),
+	)
+	staticFS, err := fs.Sub(embed.Resources, "static")
+	if err != nil {
+		return s, err
+	}
+	s.staticHandler = http.StripPrefix("/-/static/", http.FileServer(http.FS(staticFS)))
+	s.globalData = map[string]any{
+		"server_public_key_string":      &s.serverPubkeyString,
+		"server_public_key_fingerprint": &s.serverPubkeyFP,
+		"forge_version":                 version,
+		// Some other ones are populated after config parsing
+	}
+
+	misc.NoneOrPanic(s.loadTemplates())
+	misc.NoneOrPanic(misc.DeployBinary(misc.FirstOrPanic(embed.Resources.Open("git2d/git2d")), s.config.Git.DaemonPath))
+	misc.NoneOrPanic(misc.DeployBinary(misc.FirstOrPanic(embed.Resources.Open("hookc/hookc")), filepath.Join(s.config.Hooks.Execs, "pre-receive")))
+	misc.NoneOrPanic(os.Chmod(filepath.Join(s.config.Hooks.Execs, "pre-receive"), 0o755))
+
+	s.ready = true
+
+	return s, nil
+}
+
+func (s *Server) Run() error {
+	if !s.ready {
+		return errors.New("not ready")
+	}
+
+	// Launch Git2D
+	go func() {
+		cmd := exec.Command(s.config.Git.DaemonPath, s.config.Git.Socket) //#nosec G204
+		cmd.Stderr = log.Writer()
+		cmd.Stdout = log.Writer()
+		if err := cmd.Run(); err != nil {
+			panic(err)
+		}
+	}()
+
+	// UNIX socket listener for hooks
+	{
+		hooksListener, err := net.Listen("unix", s.config.Hooks.Socket)
+		if errors.Is(err, syscall.EADDRINUSE) {
+			slog.Warn("removing existing socket", "path", s.config.Hooks.Socket)
+			if err = syscall.Unlink(s.config.Hooks.Socket); err != nil {
+				slog.Error("removing existing socket", "path", s.config.Hooks.Socket, "error", err)
+				os.Exit(1)
+			}
+			if hooksListener, err = net.Listen("unix", s.config.Hooks.Socket); err != nil {
+				slog.Error("listening hooks", "error", err)
+				os.Exit(1)
+			}
+		} else if err != nil {
+			slog.Error("listening hooks", "error", err)
+			os.Exit(1)
+		}
+		slog.Info("listening hooks on unix", "path", s.config.Hooks.Socket)
+		go func() {
+			if err = s.serveGitHooks(hooksListener); err != nil {
+				slog.Error("serving hooks", "error", err)
+				os.Exit(1)
+			}
+		}()
+	}
+
+	// UNIX socket listener for LMTP
+	{
+		lmtpListener, err := net.Listen("unix", s.config.LMTP.Socket)
+		if errors.Is(err, syscall.EADDRINUSE) {
+			slog.Warn("removing existing socket", "path", s.config.LMTP.Socket)
+			if err = syscall.Unlink(s.config.LMTP.Socket); err != nil {
+				slog.Error("removing existing socket", "path", s.config.LMTP.Socket, "error", err)
+				os.Exit(1)
+			}
+			if lmtpListener, err = net.Listen("unix", s.config.LMTP.Socket); err != nil {
+				slog.Error("listening LMTP", "error", err)
+				os.Exit(1)
+			}
+		} else if err != nil {
+			slog.Error("listening LMTP", "error", err)
+			os.Exit(1)
+		}
+		slog.Info("listening LMTP on unix", "path", s.config.LMTP.Socket)
+		go func() {
+			if err = s.serveLMTP(lmtpListener); err != nil {
+				slog.Error("serving LMTP", "error", err)
+				os.Exit(1)
+			}
+		}()
+	}
+
+	// SSH listener
+	{
+		sshListener, err := net.Listen(s.config.SSH.Net, s.config.SSH.Addr)
+		if errors.Is(err, syscall.EADDRINUSE) && s.config.SSH.Net == "unix" {
+			slog.Warn("removing existing socket", "path", s.config.SSH.Addr)
+			if err = syscall.Unlink(s.config.SSH.Addr); err != nil {
+				slog.Error("removing existing socket", "path", s.config.SSH.Addr, "error", err)
+				os.Exit(1)
+			}
+			if sshListener, err = net.Listen(s.config.SSH.Net, s.config.SSH.Addr); err != nil {
+				slog.Error("listening SSH", "error", err)
+				os.Exit(1)
+			}
+		} else if err != nil {
+			slog.Error("listening SSH", "error", err)
+			os.Exit(1)
+		}
+		slog.Info("listening SSH on", "net", s.config.SSH.Net, "addr", s.config.SSH.Addr)
+		go func() {
+			if err = s.serveSSH(sshListener); err != nil {
+				slog.Error("serving SSH", "error", err)
+				os.Exit(1)
+			}
+		}()
+	}
+
+	// HTTP listener
+	{
+		httpListener, err := net.Listen(s.config.HTTP.Net, s.config.HTTP.Addr)
+		if errors.Is(err, syscall.EADDRINUSE) && s.config.HTTP.Net == "unix" {
+			slog.Warn("removing existing socket", "path", s.config.HTTP.Addr)
+			if err = syscall.Unlink(s.config.HTTP.Addr); err != nil {
+				slog.Error("removing existing socket", "path", s.config.HTTP.Addr, "error", err)
+				os.Exit(1)
+			}
+			if httpListener, err = net.Listen(s.config.HTTP.Net, s.config.HTTP.Addr); err != nil {
+				slog.Error("listening HTTP", "error", err)
+				os.Exit(1)
+			}
+		} else if err != nil {
+			slog.Error("listening HTTP", "error", err)
+			os.Exit(1)
+		}
+		server := http.Server{
+			Handler:      s,
+			ReadTimeout:  time.Duration(s.config.HTTP.ReadTimeout) * time.Second,
+			WriteTimeout: time.Duration(s.config.HTTP.ReadTimeout) * time.Second,
+			IdleTimeout:  time.Duration(s.config.HTTP.ReadTimeout) * time.Second,
+		} //exhaustruct:ignore
+		slog.Info("listening HTTP on", "net", s.config.HTTP.Net, "addr", s.config.HTTP.Addr)
+		go func() {
+			if err = server.Serve(httpListener); err != nil && !errors.Is(err, http.ErrServerClosed) {
+				slog.Error("serving HTTP", "error", err)
+				os.Exit(1)
+			}
+		}()
+	}
+
+	// IRC bot
+	go s.ircBot.ConnectLoop()
+
+	select {}
+}
diff --git a/internal/unsorted/ssh_handle_receive_pack.go b/internal/unsorted/ssh_handle_receive_pack.go
new file mode 100644
index 0000000..a354273
--- /dev/null
+++ b/internal/unsorted/ssh_handle_receive_pack.go
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+
+	gliderSSH "github.com/gliderlabs/ssh"
+	"github.com/go-git/go-git/v5"
+)
+
+// packPass contains information known when handling incoming SSH connections
+// that then needs to be used in hook socket connection handlers. See hookc(1).
+type packPass struct {
+	session      gliderSSH.Session
+	repo         *git.Repository
+	pubkey       string
+	directAccess bool
+	repoPath     string
+	userID       int
+	userType     string
+	repoID       int
+	groupPath    []string
+	repoName     string
+	contribReq   string
+}
+
+// sshHandleRecvPack handles attempts to push to repos.
+func (s *Server) sshHandleRecvPack(session gliderSSH.Session, pubkey, repoIdentifier string) (err error) {
+	groupPath, repoName, repoID, repoPath, directAccess, contribReq, userType, userID, err := s.getRepoInfo2(session.Context(), repoIdentifier, pubkey)
+	if err != nil {
+		return err
+	}
+	repo, err := git.PlainOpen(repoPath)
+	if err != nil {
+		return err
+	}
+
+	repoConf, err := repo.Config()
+	if err != nil {
+		return err
+	}
+
+	repoConfCore := repoConf.Raw.Section("core")
+	if repoConfCore == nil {
+		return errors.New("repository has no core section in config")
+	}
+
+	hooksPath := repoConfCore.OptionAll("hooksPath")
+	if len(hooksPath) != 1 || hooksPath[0] != s.config.Hooks.Execs {
+		return errors.New("repository has hooksPath set to an unexpected value")
+	}
+
+	if !directAccess {
+		switch contribReq {
+		case "closed":
+			if !directAccess {
+				return errors.New("you need direct access to push to this repo")
+			}
+		case "registered_user":
+			if userType != "registered" {
+				return errors.New("you need to be a registered user to push to this repo")
+			}
+		case "ssh_pubkey":
+			fallthrough
+		case "federated":
+			if pubkey == "" {
+				return errors.New("you need to have an SSH public key to push to this repo")
+			}
+			if userType == "" {
+				userID, err = s.addUserSSH(session.Context(), pubkey)
+				if err != nil {
+					return err
+				}
+				fmt.Fprintln(session.Stderr(), "you are now registered as user ID", userID)
+				userType = "pubkey_only"
+			}
+
+		case "public":
+		default:
+			panic("unknown contrib_requirements value " + contribReq)
+		}
+	}
+
+	cookie, err := randomUrlsafeStr(16)
+	if err != nil {
+		fmt.Fprintln(session.Stderr(), "Error while generating cookie:", err)
+	}
+
+	s.packPasses.Store(cookie, packPass{
+		session:      session,
+		pubkey:       pubkey,
+		directAccess: directAccess,
+		repoPath:     repoPath,
+		userID:       userID,
+		repoID:       repoID,
+		groupPath:    groupPath,
+		repoName:     repoName,
+		repo:         repo,
+		contribReq:   contribReq,
+		userType:     userType,
+	})
+	defer s.packPasses.Delete(cookie)
+	// The Delete won't execute until proc.Wait returns unless something
+	// horribly wrong such as a panic occurs.
+
+	proc := exec.CommandContext(session.Context(), "git-receive-pack", repoPath)
+	proc.Env = append(os.Environ(),
+		"LINDENII_FORGE_HOOKS_SOCKET_PATH="+s.config.Hooks.Socket,
+		"LINDENII_FORGE_HOOKS_COOKIE="+cookie,
+	)
+	proc.Stdin = session
+	proc.Stdout = session
+	proc.Stderr = session.Stderr()
+
+	if err = proc.Start(); err != nil {
+		fmt.Fprintln(session.Stderr(), "Error while starting process:", err)
+		return err
+	}
+
+	err = proc.Wait()
+	if err != nil {
+		fmt.Fprintln(session.Stderr(), "Error while waiting for process:", err)
+	}
+
+	return err
+}
diff --git a/internal/unsorted/ssh_handle_upload_pack.go b/internal/unsorted/ssh_handle_upload_pack.go
new file mode 100644
index 0000000..735a053
--- /dev/null
+++ b/internal/unsorted/ssh_handle_upload_pack.go
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+
+	glider_ssh "github.com/gliderlabs/ssh"
+)
+
+// sshHandleUploadPack handles clones/fetches. It just uses git-upload-pack
+// and has no ACL checks.
+func (s *Server) sshHandleUploadPack(session glider_ssh.Session, pubkey, repoIdentifier string) (err error) {
+	var repoPath string
+	if _, _, _, repoPath, _, _, _, _, err = s.getRepoInfo2(session.Context(), repoIdentifier, pubkey); err != nil {
+		return err
+	}
+
+	proc := exec.CommandContext(session.Context(), "git-upload-pack", repoPath)
+	proc.Env = append(os.Environ(), "LINDENII_FORGE_HOOKS_SOCKET_PATH="+s.config.Hooks.Socket)
+	proc.Stdin = session
+	proc.Stdout = session
+	proc.Stderr = session.Stderr()
+
+	if err = proc.Start(); err != nil {
+		fmt.Fprintln(session.Stderr(), "Error while starting process:", err)
+		return err
+	}
+
+	err = proc.Wait()
+	if err != nil {
+		fmt.Fprintln(session.Stderr(), "Error while waiting for process:", err)
+	}
+
+	return err
+}
diff --git a/internal/unsorted/ssh_server.go b/internal/unsorted/ssh_server.go
new file mode 100644
index 0000000..eb4d09d
--- /dev/null
+++ b/internal/unsorted/ssh_server.go
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"fmt"
+	"log/slog"
+	"net"
+	"os"
+	"strings"
+
+	gliderSSH "github.com/gliderlabs/ssh"
+	"go.lindenii.runxiyu.org/forge/internal/ansiec"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+	goSSH "golang.org/x/crypto/ssh"
+)
+
+// serveSSH serves SSH on a [net.Listener]. The listener should generally be a
+// TCP listener, although AF_UNIX SOCK_STREAM listeners may be appropriate in
+// rare cases.
+func (s *Server) serveSSH(listener net.Listener) error {
+	var hostKeyBytes []byte
+	var hostKey goSSH.Signer
+	var err error
+	var server *gliderSSH.Server
+
+	if hostKeyBytes, err = os.ReadFile(s.config.SSH.Key); err != nil {
+		return err
+	}
+
+	if hostKey, err = goSSH.ParsePrivateKey(hostKeyBytes); err != nil {
+		return err
+	}
+
+	s.serverPubkey = hostKey.PublicKey()
+	s.serverPubkeyString = misc.BytesToString(goSSH.MarshalAuthorizedKey(s.serverPubkey))
+	s.serverPubkeyFP = goSSH.FingerprintSHA256(s.serverPubkey)
+
+	server = &gliderSSH.Server{
+		Handler: func(session gliderSSH.Session) {
+			clientPubkey := session.PublicKey()
+			var clientPubkeyStr string
+			if clientPubkey != nil {
+				clientPubkeyStr = strings.TrimSuffix(misc.BytesToString(goSSH.MarshalAuthorizedKey(clientPubkey)), "\n")
+			}
+
+			slog.Info("incoming ssh", "addr", session.RemoteAddr().String(), "key", clientPubkeyStr, "command", session.RawCommand())
+			fmt.Fprintln(session.Stderr(), ansiec.Blue+"Lindenii Forge "+version+", source at "+strings.TrimSuffix(s.config.HTTP.Root, "/")+"/-/source/"+ansiec.Reset+"\r")
+
+			cmd := session.Command()
+
+			if len(cmd) < 2 {
+				fmt.Fprintln(session.Stderr(), "Insufficient arguments\r")
+				return
+			}
+
+			switch cmd[0] {
+			case "git-upload-pack":
+				if len(cmd) > 2 {
+					fmt.Fprintln(session.Stderr(), "Too many arguments\r")
+					return
+				}
+				err = s.sshHandleUploadPack(session, clientPubkeyStr, cmd[1])
+			case "git-receive-pack":
+				if len(cmd) > 2 {
+					fmt.Fprintln(session.Stderr(), "Too many arguments\r")
+					return
+				}
+				err = s.sshHandleRecvPack(session, clientPubkeyStr, cmd[1])
+			default:
+				fmt.Fprintln(session.Stderr(), "Unsupported command: "+cmd[0]+"\r")
+				return
+			}
+			if err != nil {
+				fmt.Fprintln(session.Stderr(), err.Error())
+				return
+			}
+		},
+		PublicKeyHandler:           func(_ gliderSSH.Context, _ gliderSSH.PublicKey) bool { return true },
+		KeyboardInteractiveHandler: func(_ gliderSSH.Context, _ goSSH.KeyboardInteractiveChallenge) bool { return true },
+		// It is intentional that we do not check any credentials and accept all connections.
+		// This allows all users to connect and clone repositories. However, the public key
+		// is passed to handlers, so e.g. the push handler could check the key and reject the
+		// push if it needs to.
+	} //exhaustruct:ignore
+
+	server.AddHostKey(hostKey)
+
+	if err = server.Serve(listener); err != nil {
+		slog.Error("error serving SSH", "error", err.Error())
+		os.Exit(1)
+	}
+
+	return nil
+}
diff --git a/internal/unsorted/ssh_utils.go b/internal/unsorted/ssh_utils.go
new file mode 100644
index 0000000..d9850d2
--- /dev/null
+++ b/internal/unsorted/ssh_utils.go
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/url"
+
+	"go.lindenii.runxiyu.org/forge/internal/ansiec"
+	"go.lindenii.runxiyu.org/forge/internal/misc"
+)
+
+var errIllegalSSHRepoPath = errors.New("illegal SSH repo path")
+
+// getRepoInfo2 also fetches repo information... it should be deprecated and
+// implemented in individual handlers.
+func (s *Server) getRepoInfo2(ctx context.Context, sshPath, sshPubkey string) (groupPath []string, repoName string, repoID int, repoPath string, directAccess bool, contribReq, userType string, userID int, err error) {
+	var segments []string
+	var sepIndex int
+	var moduleType, moduleName string
+
+	segments, err = misc.PathToSegments(sshPath)
+	if err != nil {
+		return
+	}
+
+	for i, segment := range segments {
+		var err error
+		segments[i], err = url.PathUnescape(segment)
+		if err != nil {
+			return []string{}, "", 0, "", false, "", "", 0, err
+		}
+	}
+
+	if segments[0] == "-" {
+		return []string{}, "", 0, "", false, "", "", 0, errIllegalSSHRepoPath
+	}
+
+	sepIndex = -1
+	for i, part := range segments {
+		if part == "-" {
+			sepIndex = i
+			break
+		}
+	}
+	if segments[len(segments)-1] == "" {
+		segments = segments[:len(segments)-1]
+	}
+
+	switch {
+	case sepIndex == -1:
+		return []string{}, "", 0, "", false, "", "", 0, errIllegalSSHRepoPath
+	case len(segments) <= sepIndex+2:
+		return []string{}, "", 0, "", false, "", "", 0, errIllegalSSHRepoPath
+	}
+
+	groupPath = segments[:sepIndex]
+	moduleType = segments[sepIndex+1]
+	moduleName = segments[sepIndex+2]
+	repoName = moduleName
+	switch moduleType {
+	case "repos":
+		_1, _2, _3, _4, _5, _6, _7 := s.getRepoInfo(ctx, groupPath, moduleName, sshPubkey)
+		return groupPath, repoName, _1, _2, _3, _4, _5, _6, _7
+	default:
+		return []string{}, "", 0, "", false, "", "", 0, errIllegalSSHRepoPath
+	}
+}
+
+// writeRedError is a helper function that basically does a Fprintf but makes
+// the entire thing red, in terms of ANSI escape sequences. It's useful when
+// producing error messages on SSH connections.
+func writeRedError(w io.Writer, format string, args ...any) {
+	fmt.Fprintln(w, ansiec.Red+fmt.Sprintf(format, args...)+ansiec.Reset)
+}
diff --git a/internal/unsorted/users.go b/internal/unsorted/users.go
new file mode 100644
index 0000000..0f72eed
--- /dev/null
+++ b/internal/unsorted/users.go
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+package unsorted
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+)
+
+// addUserSSH adds a new user solely based on their SSH public key.
+//
+// TODO: Audit all users of this function.
+func (s *Server) addUserSSH(ctx context.Context, pubkey string) (userID int, err error) {
+	var txn pgx.Tx
+
+	if txn, err = s.database.Begin(ctx); err != nil {
+		return
+	}
+	defer func() {
+		_ = txn.Rollback(ctx)
+	}()
+
+	if err = txn.QueryRow(ctx, `INSERT INTO users (type) VALUES ('pubkey_only') RETURNING id`).Scan(&userID); err != nil {
+		return
+	}
+
+	if _, err = txn.Exec(ctx, `INSERT INTO ssh_public_keys (key_string, user_id) VALUES ($1, $2)`, pubkey, userID); err != nil {
+		return
+	}
+
+	err = txn.Commit(ctx)
+	return
+}
diff --git a/internal/unsorted/version.go b/internal/unsorted/version.go
new file mode 100644
index 0000000..fccf52c
--- /dev/null
+++ b/internal/unsorted/version.go
@@ -0,0 +1,3 @@
+package unsorted
+
+var version = "unknown"