g1t/docs/SELF_HOSTING.md

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Running g1t yourself: the design, a docker compose proof, and a guide to what works today1# Self-hosting g1t
2
3The goal (2026-10-05): g1t should not be locked to Cloudflare. Anyone should
4be able to run it on their own machine with `docker compose up`. The free
5core is MIT and self-hostable; managed hosting at g1t.sh is the paid
6product, and it stays on Cloudflare. Self-hosting must never make hosted
7g1t worse, so hosted code paths do not change to make room for it.
8
9This document covers:
10
111. An inventory of every Cloudflare dependency in the code.
122. The design: ports and adapters, with the runtime choice weighed.
133. What phase 1 ships today: `deploy/self-host/`, and what was verified.
144. The phased plan, with estimates.
155. The risks.
16
17The user guide is `apps/docs/src/content/docs/guides/self-hosting.md`.
18
19## The short version
20
21- **g1t is already shaped for this.** Every service talks to every other
22 over plain HTTP: `POST /rpc/<method>` with a JSON body (`crates/kit`,
23 `packages/contracts/src/clients.ts`). Every database is SQLite (D1).
24 Git storage sits behind a `GitStore` port (`services/repos/src/store.rs`),
25 and everything past that port speaks git's smart HTTP to a remote URL
26 with a bearer token.
27- **The fastest credible path is to run the Workers themselves in
28 workerd**, the open-source Workers runtime, not to port them. Phase 1
29 runs every core Worker unchanged (the same WebAssembly and the same
30 bundles that deploy to Cloudflare) in one workerd process under
31 `wrangler dev`. D1, KV and Queues are kept on a volume as SQLite files.
32- **Three things replace Cloudflare-only bindings**, as small Workers bound
33 in their place, with no change to the services:
34 - `ARTIFACTS` becomes an Artifacts-compatible shim in front of a git
35 store, which keeps plain bare repositories on disk and serves them
36 with `git http-backend`.
37 - `EMAIL` becomes a shim that logs each message and hands it to Mailpit,
38 which can relay to any SMTP server.
39 - The runner and the context hub are bound to an "off" Worker, which
40 answers "agents are off" instead of failing.
41- **Proven on this machine with Docker:** sign up, confirm the email
42 through Mailpit, create a workspace and a repository, push and clone over
Merge branch 'worktree-agent-af58ac8933b0dd125'43 HTTP (the second clone from the clone pack cache in RustFS), open an
Merge branch 'worktree-agent-aaf03bdceac799c89'44 issue, and browse code, commits and files in the site; then the REST API,
Merge branch 'worktree-agent-af58ac8933b0dd125'45 OAuth metadata and MCP on their own port, an npm package published and
46 installed and a container image pushed and pulled through RustFS, pull
47 requests from a branch and from a fork merged onto `main`, the merge queue taking a pull request and
Merge branch 'worktree-agent-aaf03bdceac799c89'48 giving it back, and every cron handler the scheduler runs. All of it runs
49 against local storage. See [Phase 1: what works today](#3-phase-1-what-works-today).
Running g1t yourself: the design, a docker compose proof, and a guide to what works today50- **Long term:** keep workerd as the runtime, because it is what hosted
51 runs. Replace `wrangler dev` with a production workerd configuration.
52 Move the binding shims into code-level ports in `g1t_kit` and a TS
53 `@g1t/platform` package, so each primitive has a hosted and a
54 self-hosted adapter behind one interface.
55
56## 1. Inventory
57
58The sources are every `wrangler.jsonc` plus a grep of the code. Coupling
59is graded:
60
61- **thin**: one call site or a config switch;
62- **adapter**: already behind a port, or easy to put behind one;
63- **woven**: the logic is shaped around the product.
64
65### By primitive
66
67| Primitive | Where | Coupling | Self-hosted equivalent |
68| --- | --- | --- | --- |
69| **Workers runtime**, service bindings | Every service. Rust through `worker` 0.8 (`#[event(fetch\|queue\|scheduled)]`, `Env`, `Fetcher`); TS as `export default { fetch, queue, scheduled }` | woven (as a runtime), thin (as an API) | **workerd**: the same runtime, open source. Service bindings work as they do hosted. Calls are HTTP (`POST /rpc/<method>`), so a native port could use plain HTTP clients. |
70| **Workers RPC** (JS methods across a binding) | Only `RUNNER`: `RunnerService extends WorkerEntrypoint` (`services/runner/src/index.ts:626`). `apps/web` calls `env.RUNNER.enabled/run/plan/...` directly in 11 routes. | thin | workerd supports it. A native port needs these on `/rpc/*` as well; the runner already has a `fetch` shim for Rust callers. |
71| **D1** | System of record for 13 services. Rust: `env.d1("DB")`; TS: `D1Database`; `db.batch()` in `crates/kit` `rename` | woven (SQL), thin (API) | **SQLite files**. workerd/Miniflare implements D1 on SQLite, and the same `migrations/` apply with `wrangler d1 migrations apply --local`. A native port would need a `Database` port over `rusqlite`/`better-sqlite3`; the SQL is already SQLite, including FTS5. |
Merge branch 'worktree-agent-af58ac8933b0dd125'72| **KV** | `BLOBS`: Actions artifacts and cache (`apps/api/src/blobs.rs`, `apps/web/app/lib/artifacts.server.ts`). `AVATARS`: `services/identity/src/avatars.rs`, `apps/web/workers/app.ts`, `services/og`. `DOMAINS`: `services/deployments/src/domains.ts`, `services/pages` | thin | Miniflare KV on disk (SQLite plus blob files). Natively: a `BlobStore` port on the filesystem or S3. |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today73| **Queues**: the event bus | Producer: `services/events` `BUS.sendBatch` (`lib.rs:67`). The consumer writes the log, then fans out to every binding named `SUBSCRIBER_*` (`lib.rs:161`). Twelve consumers, one queue each. Private job queues in search (`g1t-search-jobs`) and context (`g1t-context-jobs`); consumers branch on the queue name. | woven | Miniflare Queues: in-process and persisted, which works today. Natively: a `Bus` port with a SQLite outbox and a poller per subscriber, or NATS/Redis Streams. At-least-once delivery and idempotent consumers are already the contract. |
74| **Durable Objects** | Only `AttemptSandbox` (runner), as the containers library's base class. Uses `ctx.storage.get/put/delete`, `schedule()` (alarm), `idFromName`/`idFromString`, DO RPC (`run`, `destroy`, `noteBlocked`). **Not used:** WebSocket hibernation, raw `alarm()`, `ctx.storage.sql`, `ctx.exports`. | woven, in the runner only | workerd supports Durable Objects (on-disk SQLite). Runner state can move to the sandbox supervisor (phase 2). |
75| **Containers** (`@cloudflare/containers`) | `services/runner`: one sandbox per agent run, Actions job and deploy build. `sleepAfter`, `start({ envVars, enableInternet })`, `onStop`. Image: `services/runner/Dockerfile` (node 24, git, toolchains, Claude Code, `g1t-runner`). | woven | **Docker or Podman** through the socket, with the same image. Wrangler can already run Containers locally through Docker; whether that covers outbound interception has to be tested. |
Invite-only launch: sign in with GitHub, repository access and lifecycle, many emails, a new look76| **Outbound interception** (guardrails egress) | `services/runner/src/guard.ts` (`egress()`, `abuse()`), `egress.ts` (`sandboxHosts`, `buildHosts`, `EGRESS_CA = /etc/cloudflare/certs/cloudflare-containers-ca.crt`), `AttemptSandbox.outboundHandlers`, `interceptHttps = true`, `setOutboundHandler("egress", { hosts })`, `setOutboundByHost("sandbox.g1t.internal", "abuse")` (a sandbox reporting it stopped itself for mining; `crates/runner/src/abuse.rs`) | woven | The sandbox joins an internal network with no route out, and gets `HTTP(S)_PROXY` pointing at an allow-list proxy that checks the `CONNECT` host. The CA bundle is then not needed, because nothing is re-signed. Blocked hosts are reported to the runner as `noteBlocked` does today. |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today77| **Artifacts** (git storage) | Only `services/repos/src/store.rs` (`ArtifactsStore`, behind the `GitStore`/`GitRepo` traits). Methods used: `create`, `get`; then `info`, `createToken`, `log`, `readCommit`, `readTree`, `readBlob`, `readFile`, `fork`, and `[Symbol.dispose]`. Everything else (push, fetch, landing, catch-up, import, ref listing) is smart HTTP to `info().remote` with `Bearer <token>`: `land.rs`, `catch_up.rs`, `refs.rs`, `import.rs`, `git_http.rs`. | adapter | **Bare repositories on disk plus `git http-backend`.** Built in phase 1: `deploy/self-host/gitstore`. Forks are local clones with hard links. Tokens are HMAC-signed, scoped, and expire. |
78| **Cache API** | `services/repos/src/store.rs` (trees and blobs up to 1 MiB, by hash), `apps/web/workers/app.ts` (avatars), `services/og` | thin, optional | Miniflare's cache, or none. Every use tolerates a miss. |
79| **Vectorize** | `services/context/src/index.ts` (`VECTORS.upsert/deleteByIds/query`); optional, guarded by `if (!AI \|\| !VECTORS)` | thin | **sqlite-vec** (default: one file, next to D1), pgvector or Qdrant behind a `VectorIndex` port; or off, which already degrades to keyword search. |
80| **Workers AI** | `services/context` only: `@cf/baai/bge-base-en-v1.5` embeddings (768 dims) | thin | An OpenAI-compatible `/v1/embeddings` endpoint (Ollama, vLLM, LM Studio, or a hosted API) behind an `Embedder` port. Changing models means re-embedding (a backfill job already exists). |
Auto model routing: the cheapest tier that can do each piece of work, a retry goes up a tier, and each run records its tier81| **AI Gateway** | `services/runner/src/model-env.ts` (`modelEnv`), `services/models/src/route.ts:70` (gateway URL, `cf-aig-*` headers), `services/billing/src/keeper.rs` (reads gateway logs to settle) | thin | Optional already: an empty `AI_GATEWAY_ID` goes straight to the provider. Any Anthropic- or OpenAI-compatible base URL works for a workspace's own provider. |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today82| **Workers for Platforms** | `services/pages` (dispatcher: `env.APPS.get(script).fetch`), `services/deployments/src/cloudflare.ts` (script and asset upload through the REST API) | woven | Phase 1: off. Later: a self-hosted app host in workerd, using the Worker Loader binding to load uploaded scripts, or a workerd per app (see [Deployments](#deployments)). |
83| **Cloudflare for SaaS** (custom hostnames) | `services/deployments/src/custom-hostnames.ts` (`/zones/{id}/custom_hostnames`) | thin | Caddy with on-demand TLS, asking g1t whether a hostname is allowed. |
84| **Cloudflare REST API** | deployments: script upload, list, delete, assets, GraphQL usage. Billing keeper: AI Gateway logs, `billable-usage`, GraphQL container usage. Ops scripts in `scripts/`. | thin (deployments), woven (keeper pricing) | Deployments: the app-host adapter. Keeper: off when self-hosted, because there is no bill to reconcile. |
85| **Email Sending** | `services/identity/src/email.rs` (`EMAIL.send({to, from, subject, text, html})`); callers: verification, password reset, `admin.rs` limit warnings | thin | Built in phase 1: a shim that logs and hands mail to Mailpit, which relays over SMTP. Later: a `Mailer` port with an SMTP adapter. |
86| **Cloudflare Access** | `apps/sudo/app/lib/access.ts` (verifies `Cf-Access-Jwt-Assertion` against `/cdn-cgi/access/certs`, `ACCESS_AUD`, `STAFF_EMAILS`) | woven, in sudo only | A local admin flag: `G1T_ADMINS` usernames checked against the normal g1t session. Self-hosters rarely need sudo, which is about billing. |
Merge branch 'worktree-agent-aaf03bdceac799c89'87| **Cron Triggers** | actions (every minute), webhooks (every minute), identity (`*/15`), security (`*/30`), repos and packages (hourly), events (daily), billing (`*/15` and daily), deployments (`*/10`), runner (`*/5`) | thin | workerd runs `scheduled()` when asked, but never on its own. `deploy/self-host/scheduler.mjs` asks: once a minute, inside the g1t container, it runs each due cron through Wrangler's local API (`POST /cdn-cgi/local/explorer/api/local/scheduled?worker=<name>`, answered only on localhost), the same handler Cron Triggers run. The services and crons come from `schedules.json`, which `configs.mjs` writes from each `wrangler.jsonc` for the services in its `SELF_HOST_CRONS`: repos, events, identity, security, webhooks and packages. Not run: actions (it would start scheduled workflows with no runner), billing (Cloudflare and Stripe) and deployments (Cloudflare's API). A handler still running from the minute before is not started again, and one is given up on after ten minutes. `scheduler.mjs --once` runs every cron of every service now and exits non-zero if one failed (smoke.sh uses it). The status page has its own loop (`status.sh`). |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today88| **`cloudflare:workers` imports** | `apps/web` (`env` in 15 files), `apps/sudo`, `services/runner` (`WorkerEntrypoint`) | thin | Provided by workerd. A Node port would pass `env` through context instead. |
89| **Static Assets** | `apps/web` (Vite plugin build), `apps/docs`, `apps/sudo` (`run_worker_first`) | thin | workerd serves them. |
90| **`placement`, `observability`, routes, custom domains** | every `wrangler.jsonc` | config only | Dropped by `deploy/self-host/configs.mjs`. |
91| **`cf-ray`** | Used as an audit request id, with a fallback: `services/repos/src/run_access.rs:131`, `apps/api/src/audit.rs:37` | thin | Falls back already. |
Merge branch 'worktree-agent-af58ac8933b0dd125'92| **R2** | `services/packages` (`BLOBS`: container layers and other package files), `services/repos` (`BACKUPS`: nightly backup bundles; `GIT_PACKS`: the clone pack cache), the API's Actions cache (`ACTIONS_CACHE`), the runner's downloads | thin | **S3-compatible storage**: the `BlobStore` port in `crates/blobstore` has an R2 adapter and an S3 one (`s3.rs`, SigV4 over fetch); each service names its own bucket (`BLOB_STORE`/`S3_BUCKET` for packages, `BACKUP_STORE`/`BACKUP_S3_BUCKET` for backups, `PACK_STORE`/`PACK_S3_BUCKET` for clone packs), run against RustFS in the compose file. |
Packages, with a container registry on g1t.sh; workspaces deleted whole and kept 30 days; Members for every member93| **Not used** | Hyperdrive, Workflows, Analytics Engine, Browser Rendering, Images, Turnstile, Secrets Store, `connect()`, HTMLRewriter, `request.cf` | — | — |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today94
95### By service
96
Deploys as code: a manifest of every Worker, a deploy tool that ships only what changed in parallel stages, and a g1t Actions workflow97The deployable units, their stage and what each is built from are listed in
98`deploy/stack.jsonc` (see `docs/DEPLOYING.md`); its `self_host` field is
99what `deploy/self-host/configs.mjs` runs, turns off or leaves out. A test
100checks this table names every unit.
101
Running g1t yourself: the design, a docker compose proof, and a guide to what works today102| Service | Runs on | Cloudflare dependencies beyond Workers and D1 | Phase 1 self-hosted |
103| --- | --- | --- | --- |
104| `apps/web` | TS Worker plus assets | KV (`BLOBS`, `AVATARS`), Cache API, `cloudflare:workers` `env`, RPC to `RUNNER` | Runs unchanged |
Merge branch 'worktree-agent-aaf03bdceac799c89'105| `apps/api` | Rust Worker | KV `BLOBS`, R2 `ACTIONS_CACHE`; `api.g1t.sh`/`mcp.g1t.sh` addresses (now the `API_URL`, `MCP_URL` and `SITE_URL` settings, hosted defaults when unset: `src/addresses.rs`) | Runs in a second workerd on its own port (`API_PORT`, 8789; `self_host: "separate"`), started by `start.sh` once the first is up. Its service bindings reach the other Workers through Wrangler's dev registry. `API_URL` (default: `PUBLIC_URL`'s host on `API_PORT`) is its OAuth issuer; MCP is the path `/mcp` on it (`MCP_URL`). Its KV is its own, apart from the site's: Actions artifacts need the runner, which is off |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today106| `apps/sudo` | TS Worker plus assets | Access JWT | Not run |
107| `apps/docs` | Static | — | Not run (docs.g1t.sh serves them) |
Deploys as code: a manifest of every Worker, a deploy tool that ships only what changed in parallel stages, and a g1t Actions workflow108| `apps/status` | TS Worker | Email Sending, cron; bound only to billing | Runs in a process of its own (`status.sh`), so it stays up when the site does not |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today109| `services/identity` | Rust | Email Sending, KV `AVATARS` | Runs unchanged; `EMAIL` goes to the mail shim |
Merge branch 'worktree-agent-af58ac8933b0dd125'110| `services/repos` | Rust | **Artifacts**, **R2** (`BACKUPS`), Cache API, optional KV `GIT_CACHE` with `REPOS_KEY`, optional R2 `GIT_PACKS` | Runs unchanged; `ARTIFACTS` goes to the git store, backups to the `g1t-backups` bucket in RustFS (`BACKUP_STORE=s3`), and the clone pack cache to `g1t-git-packs` (`PACK_STORE=s3`: the `PackStore` port in `src/pack_cache.rs` over the shared `BlobStore`, multipart, an object only once whole; `storage-setup` gives the bucket a lifecycle rule that deletes packs after 7 days and aborts uploads unfinished after a day). Without `GIT_CACHE` and `REPOS_KEY`, credentials and ref listings are kept per isolate only. Its nightly cron queues backups, but bundles are cut by the runner, which is off in phase 1: none are made yet |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today111| `services/work` | Rust | Queue consumer | Runs unchanged |
112| `services/events` | Rust | Queues (producer and fan-out) | Runs unchanged; the off services' queues are not produced to |
113| `services/projects` | TS | Queue consumer | Runs unchanged |
114| `services/search` | Rust | Queues (events and its own jobs); FTS5 | Runs unchanged |
115| `services/billing` | Rust | Cron, Cloudflare REST API (keeper), Stripe | Runs with `FREE_WHILE_BUILDING=true` and no Stripe key: nothing is charged |
Packages, with a container registry on g1t.sh; workspaces deleted whole and kept 30 days; Members for every member116| `services/security` | Rust | Queue, cron | Runs unchanged; its cron through `scheduler.mjs` |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today117| `services/actions` | Rust | Queue, cron, `ACTIONS_KEY` | Runs; jobs need the runner, which is off |
Packages, with a container registry on g1t.sh; workspaces deleted whole and kept 30 days; Members for every member118| `services/webhooks` | Rust | Queue, cron, `WEBHOOKS_KEY` | Runs; retries through `scheduler.mjs` |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today119| `services/integrations` | Rust | Queue, `INTEGRATIONS_KEY` | Runs unchanged |
Merge branch 'worktree-agent-af58ac8933b0dd125'120| `services/packages` | Rust | **R2** (`BLOBS`), cron, queue, `PACKAGES_TOKEN_SECRET` | Runs with `BLOB_STORE=s3` against the compose file's RustFS (`deploy/self-host/configs.mjs`); no request size limit (`MAX_REQUEST_BYTES` 0 means none) |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today121| `services/deployments` | TS | Workers for Platforms, REST API, KV `DOMAINS`, cron | Runs with no API token: nothing deploys |
122| `services/runner` | TS | **Containers**, Durable Objects, outbound interception, AI Gateway, cron | Off: bound to the off Worker |
123| `services/context` | TS | **Vectorize**, **Workers AI**, Queues | Off: bound to the off Worker |
124| `services/models` | TS | AI Gateway; public at `models.g1t.sh` | Not run (only sandboxes call it) |
125| `services/pages` | TS | Dispatch namespace, wildcard routes, KV | Not run |
126| `services/og` | TS | Cache API | Not run (social cards are optional) |
127| `crates/runner` | native, in the sandbox | Talks to `https://api.g1t.sh` and `https://g1t.sh` (hard-coded in the runner Worker); `wrangler deploy --dry-run` for builds | Phase 2 |
128| `crates/sshd` | native | Not deployed; calls `/_internal/ssh/*` endpoints that do not exist yet | Phase 3 |
129
130### Hard-coded hosted addresses
131
Merge branch 'worktree-agent-aaf03bdceac799c89'132Self-hosting needs one setting, `PUBLIC_URL`, in place of these, and
133`configs.mjs` derives the rest from it. These are settings now, each with
134the hosted address as its default, so hosted g1t sets nothing:
Running g1t yourself: the design, a docker compose proof, and a guide to what works today135
Merge branch 'worktree-agent-aaf03bdceac799c89'136- The site (`apps/web/app/lib/addresses.ts`): `SITE_URL`, `API_URL`,
137 `MCP_URL` and `OG_URL` (empty: no social card tags). The root loader
138 hands them to the page; `meta.ts`, the clone box, agent setup, the
139 pull request and merge box remotes, the tokens page and the OAuth
140 consent's `iss` read them.
141- The API (`apps/api/src/addresses.rs`): `SITE_URL`, `API_URL` (the OAuth
142 issuer) and `MCP_URL` (the protected resource; a path on the API's host
143 self-hosted).
144- Identity's mail (`services/identity/src/email.rs`): `SITE_URL` for
145 links and the logo, `MAIL_FROM` for the sender. The mail shim still
146 rewrites any `https://g1t.sh` link left in a message.
147
148Still hard-coded, for phase 2:
149
150- `apps/web/workers/app.ts` (`DOCS`); defaults in
151 `components/invites-section.tsx`, `components/runners.tsx`,
152 `lib/invites.ts` and `lib/legal.ts`.
Running g1t yourself: the design, a docker compose proof, and a guide to what works today153- `services/runner/src/index.ts` (`G1T_API`, `GIT_REMOTE` and the other
154 remotes handed to sandboxes, in 12 places).
155- `services/billing` (`stripe.rs`, `accounts.rs`, `limits.rs`).
156- `crates/sshd` (`G1T_API` default).
157
158There are about 150 occurrences of `g1t.sh` in non-test code. Most are
159docs links and copy, and need no change.
160
161## 2. Design
162
163### Principles
164
1651. **Hosted is the reference.** Hosted code does not change behaviour to
166 make room for self-hosting. A self-hosted adapter is added beside the
167 hosted one, and the hosted one stays the default.
1682. **Swap at the narrowest seam that exists.** A binding-shaped seam (a
169 Worker that offers the same methods as the Cloudflare binding) needs no
170 code change, and is how phase 1 works. A code-level port (a trait or
171 interface with two adapters) is cleaner and testable, and is the long-term
172 shape. Each primitive moves from the first to the second when it is next
173 touched.
1743. **One runtime, two hosts.** The Workers stay Workers. workerd runs them
175 self-hosted, so one build serves both and there is no second code path
176 to keep correct.
1774. **Off is a real mode.** Every optional subsystem (agents, context,
178 deployments, billing) has an "off" answer that pages already handle.
179
180### The ports
181
182| Port | Hosted adapter | Self-hosted adapter | Lives in | Status |
183| --- | --- | --- | --- | --- |
184| `GitStore` / `GitRepo` | `ArtifactsStore` | Git store (bare repos, `git http-backend`) through an Artifacts-compatible shim; later a `LocalGitStore` that calls the git store's HTTP API from Rust directly | `services/repos/src/store.rs` (exists) | **Built** (binding level) |
185| `Mailer` | Email Sending binding | SMTP (through Mailpit relay now; a direct SMTP adapter later) | `g1t_kit::mail` | **Built** (binding level) |
186| `Sandbox` | `AttemptSandbox` (Containers, DO) | `DockerSandbox`: a supervisor that starts the runner image through the Docker API | `services/runner` (TS) | Phase 2 |
187| `Egress` | Containers outbound handler | Allow-list HTTP(S) proxy on an internal network | `services/runner` | Phase 2 |
188| `ModelRoute` | AI Gateway, or direct | Any Anthropic/OpenAI-compatible base URL | `services/models`, `runner/model-env.ts` | Exists (env-switchable) |
189| `Embedder` | Workers AI | OpenAI-compatible `/v1/embeddings` | `services/context` | Phase 3 |
190| `VectorIndex` | Vectorize | sqlite-vec / pgvector / Qdrant | `services/context` | Phase 3 |
191| `AppHost` | Workers for Platforms plus REST API | workerd app host (Worker Loader) | `services/deployments` | Phase 3 |
192| `Domains` | Cloudflare for SaaS | Caddy on-demand TLS | `services/deployments` | Phase 3 |
193| `AdminAuth` | Cloudflare Access | `G1T_ADMINS` plus the normal session | `apps/sudo` | Phase 4 |
194| `Bus` | Queues | Miniflare Queues now; SQLite outbox later | `services/events`, `g1t_kit` | Works (runtime) |
195| `Database` | D1 | SQLite files through workerd | — | Works (runtime) |
196| `Blobs` | KV | Miniflare KV now; filesystem/S3 later | — | Works (runtime) |
Merge branch 'worktree-agent-aaf03bdceac799c89'197| `Scheduler` | Cron Triggers | `scheduler.mjs`: a ticker that calls `scheduled()` through Wrangler's local API | `deploy/self-host` | **Built** for the services in `SELF_HOST_CRONS`; each handler checked by `smoke.sh` |
198| `PackStore` | R2 `GIT_PACKS` | S3 (`PACK_STORE=s3`) through `crates/blobstore` | `services/repos/src/pack_cache.rs` | **Built** |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today199| `UsageKeeper` | Cloudflare bill plus AI Gateway logs | None (billing off) | `services/billing` | Off |
200
201For Rust, the code-level ports go in `crates/kit` as traits (`g1t_kit::ports`),
202with the Cloudflare adapters next to them. For TypeScript, they go in a new
203`packages/platform` package, with each adapter in its own module so a
204hosted bundle never pulls in a self-hosted adapter. The adapter is chosen at
205startup from one setting, `G1T_MODE=hosted|self`, never per request.
206
207### The runtime: workerd, or native binaries
208
209| | **workerd (phase 1: `wrangler dev`; later a plain workerd config)** | **Native: Rust on axum/hyper, TS on Node** |
210| --- | --- | --- |
211| Effort to first boot | **Done.** About a day, almost all of it shims and config. | Weeks. The Rust services use `worker::*` throughout: `Env`, `Fetcher`, `D1Database`, the `#[event]` macros and `js_sys` interop. Each needs an abstraction layer before it compiles natively. TS needs an `env` provider in place of `cloudflare:workers`, plus Queues, D1 and KV clients. |
212| Fidelity to hosted | **The same runtime and the same bundles.** A bug self-hosted is a bug hosted. | A second implementation of every platform API, with its own bugs. |
213| Performance | Good for one node: WebAssembly in V8, SQLite on local disk. Single-threaded per isolate; plenty for a team. | Better per core, and multi-threaded. That matters only at a scale where people use g1t.sh. |
214| Maintenance | Low. New hosted features run self-hosted for free, unless they add a new Cloudflare-only binding. The config generator then drops it or binds a stand-in. | High. Every feature is built twice, or behind a port that both sides keep honest. |
215| Scale-out | One process, one disk. D1-on-SQLite is single-writer. | Could use Postgres and many processes. |
216| Operational risk | `wrangler dev` is a development tool (see risks). Moving to `workerd serve` with a generated config, or a small Miniflare-API launcher, removes the dev-tool surface. | Conventional. |
217
218**Recommendation.**
219
220- **Phase 1:** workerd under `wrangler dev`, as built in `deploy/self-host/`.
221 It needs no change to any service and is proven end to end.
222- **Phase 2:** replace `wrangler dev` with a launcher that drives Miniflare's
223 API directly, or a generated `workerd` config. It should expose only the
224 site and the API, with no dev endpoints, run cron, and run as a proper
225 service.
226- **Long term:** keep workerd as the runtime and push the remaining
227 Cloudflare-only bindings behind code-level ports. Compile to native only
228 what already is native (the runner binary, sshd), or a service where
229 workerd is a real limit, case by case.
230
231A full native port is not worth it. It would double the maintenance of
232every feature, which is the opposite of what makes self-hosting
233sustainable for a small team.
234
235### Sandboxes (phase 2)
236
237- **Engine.** Docker or Podman through the socket, mounted into a small
238 supervisor (`g1t-sandboxd`), not into the workerd container. The
239 supervisor exposes the runner's `Sandbox` port over HTTP: start with
240 env, stop, status, and the exit report that becomes `onStop`. It uses
241 the **same image** (`services/runner/Dockerfile`).
242- **Runner.** The runner Worker runs in workerd with `AttemptSandbox`
243 replaced by a `DockerSandbox` adapter. Run state that lives in
244 `ctx.storage` moves to the supervisor's SQLite; `schedule()`/`timeUp`
245 becomes a supervisor timer.
246- **Egress guardrails.** Each restricted sandbox joins an internal Docker
247 network with no default route. Its `HTTP_PROXY`/`HTTPS_PROXY` point at an
248 allow-list proxy (for example a small Go or Node `CONNECT` proxy) that
249 admits the hosts `sandboxHosts()` computes and reports refusals.
250 Nothing is intercepted, so no CA is injected. `EGRESS=off` puts the
251 sandbox on a normal network.
252- **Addresses.** `G1T_API`, `GIT_REMOTE` and the rest become
253 `PUBLIC_URL`-derived settings. Sandboxes reach the site and API on the
254 compose network.
255- **Shortcut to evaluate first.** Wrangler can already run Containers
256 classes locally through Docker. If its local Containers support
257 `setOutboundHandler`, the runner could run nearly unchanged. Test this
258 before building the supervisor.
259
260### Git storage
261
262Artifacts gives g1t: named repositories, scoped short-lived tokens, a smart
263HTTP remote, typed reads (commit, tree, blob, file, log), copy-on-write
264forks, and jurisdictions. g1t uses everything except jurisdictions.
265
266The self-hosted git store (`deploy/self-host/gitstore/server.mjs`, about 450
267lines of Node with no dependencies) provides the same:
268
269| Artifacts | Git store |
270| --- | --- |
271| `create(name, { setDefaultBranch, description })` | `git init --bare --initial-branch`, plus `g1t.json` beside it for metadata |
272| `get(name)` then `info()` | Metadata, `HEAD`, and the last push time; `remote` is `GITSTORE_URL/git/<name>.git` |
273| `createToken(scope, ttl)` | HMAC-SHA256 over `{ key, scope, expiry }` with the shared secret |
274| Smart HTTP remote | `git http-backend`; a read token cannot push |
275| `log`, `readCommit`, `readTree`, `readBlob`, `readFile` | `git rev-list --first-parent`, `cat-file`, `ls-tree` |
276| `fork(name, { defaultBranchOnly })` | `git clone --bare [--single-branch]` with hard-linked objects |
277
278Hosted is untouched: `ArtifactsStore` is still the only adapter compiled
279into `services/repos`. Self-hosted, the `ARTIFACTS` binding is a service
280binding to `deploy/self-host/workers/artifacts`, which offers Artifacts'
Merge branch 'worktree-agent-a2013627e5ea4ab13'281methods and calls the git store. The git store can later gain `git gc`
282scheduling and object-store-backed packs for large installations.
283
284The same git store is hosted g1t's cold fallback for an Artifacts outage
285(docs/ARTIFACTS.md, R12). For that it takes namespaced keys as well as
286plain ones (`g1t-us-1/acme--rocket`, kept at
287`<GITSTORE_ROOT>/g1t-us-1/acme--rocket.git` and served at
288`/git/g1t-us-1/acme--rocket.git`, the shape Artifacts gives remotes), and
289`GITSTORE_READ_ONLY=1` refuses pushes, write tokens and making, forking or
290deleting repositories. `services/repos/src/fallback.rs` calls its API from
291Rust, the start of the `LocalGitStore` adapter: a namespace named in
292`GIT_FALLBACK_NAMESPACES` is served from it, with the shim out of the path.
293Self-hosted installations keep using the shim, with plain keys; nothing
294changes for them.
Running g1t yourself: the design, a docker compose proof, and a guide to what works today295
296### Search and context
297
298- **Site search** (`services/search`) is D1 FTS5. It works self-hosted as
299 is (verified: `/search?q=hello` answers 200).
300- **Context hub** (`services/context`) needs an `Embedder` and a
301 `VectorIndex`:
302 - Default: **sqlite-vec** in the context service's own SQLite, with
303 embeddings from an **OpenAI-compatible endpoint**. Ollama's
304 `nomic-embed-text` has the same 768 dimensions as today's
305 `bge-base-en-v1.5`.
306 - Alternatives: pgvector or Qdrant, for installations that already run
307 them.
308 - Off: the service already degrades to keyword search when `AI` or
309 `VECTORS` is missing (`index.ts:919`), so phase 3 can first run context
310 with neither bound.
311
312### Models
313
314Already portable. The model proxy (`services/models`) and the runner's
315model environment take any Anthropic-compatible base URL, and an empty
316`AI_GATEWAY_ID` skips AI Gateway. Self-hosted:
317
318- a workspace connects its own provider under Integrations (Anthropic, or
319 any Anthropic-compatible endpoint, including a local gateway in front of
320 OpenAI-compatible models);
321- "hosted models" are off, because there is no g1t key to spend.
322
323### Deployments
324
325- **Phase 1–2: off.** `services/deployments` runs, but with no
326 `CLOUDFLARE_API_TOKEN` nothing deploys. Its pages and settings still
327 render.
328- **Phase 3: an app host on workerd.** The self-hosted `pages` dispatcher
329 uses workerd's **Worker Loader** binding to load each uploaded app's
330 modules on demand, keyed by deployment id, from the blob store. Static
331 assets are served from the same store. Builds run in Docker sandboxes
332 (phase 2), which already bundle with `wrangler deploy --dry-run`.
333 Wildcard hosts (`*.apps.example.com`) and custom domains go through
334 Caddy with on-demand TLS. The alternative, one workerd process per app,
335 is simpler to isolate but heavier.
336
337### Billing and the feature map
338
339Self-hosted billing is **off by default**: no Stripe, no usage limits,
340no keeper. Billing still runs, because the shell reads `billing.account`
341on every page, but with `FREE_WHILE_BUILDING=true` and no Stripe key.
342
343| Feature | Hosted (g1t.sh) | Self-hosted default | Self-hosted, when turned on |
344| --- | --- | --- | --- |
345| Accounts, workspaces, repos, git over HTTP | On | On | — |
Merge branch 'worktree-agent-aaf03bdceac799c89'346| Issues, pull requests, review | On | On | — |
347| Merge queue | On | Takes pull requests; testing and landing them needs sandboxes | Phase 2 |
348| Bringing a pull request up to date before it lands (catch-up) | On | Off: needs a sandbox | Phase 2 |
Merge branch 'worktree-agent-af58ac8933b0dd125'349| Clone pack cache | R2 | RustFS (`g1t-git-packs`) | — |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today350| Site search (FTS5) | On | On | — |
351| Email | Email Sending | Mailpit, logged | SMTP relay |
Packages, with a container registry on g1t.sh; workspaces deleted whole and kept 30 days; Members for every member352| Webhooks, integrations | On | On (retries through `scheduler.mjs`) | — |
g1t is one name: its agent's work, commits and comments show as @g1t, and nobody can claim g1t or g1t-agent353| g1t's agent | On | Off | Phase 2: Docker sandboxes plus your own model provider |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today354| Guardrails egress | Containers interception | n/a | Phase 2: allow-list proxy |
355| Hosted models (g1t's key) | On (billed) | Off | Never: bring your own |
356| Context hub semantic search | Vectorize plus Workers AI | Off | Phase 3: sqlite-vec plus an OpenAI-compatible embedder |
357| Deployments | Workers for Platforms | Off | Phase 3: workerd app host |
358| Custom domains | Cloudflare for SaaS | Off | Phase 3: Caddy on-demand TLS |
359| Billing, limits, Stripe, keeper | On | Off | Not planned |
360| sudo (staff console) | Access | Off | Phase 4: `G1T_ADMINS` |
361| Git over SSH | Not yet | Off | Phase 3 (`crates/sshd`, which is native already) |
Merge branch 'worktree-agent-aaf03bdceac799c89'362| REST API, OAuth, MCP | On | On, on `API_PORT` | — |
363| CLI | On | Off | Phase 2 |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today364
365### Auth, Access and email
366
367- `apps/sudo` checks Cloudflare Access. Self-hosted, it should check a
368 normal g1t session against `G1T_ADMINS`. That needs an `AdminAuth` port in
369 `workers/app.ts` with two adapters. It is phase 4, because sudo is about
370 billing.
371- Sessions are random tokens stored hashed in D1, with no signing key, so
372 nothing to configure. The cookie is `Secure`: fine on `localhost`, but any
373 other address needs HTTPS. The compose file should gain an optional Caddy
374 service in phase 2.
375- **Email verification is required** before creating anything, and there is
376 no bypass in code. That is why the proof ships a working mail path
377 (Mailpit) rather than "email off". An admin "mark verified" or
378 `G1T_SKIP_EMAIL_VERIFICATION` belongs with `G1T_ADMINS`.
379
380### Configuration, upgrades and backups
381
382- **Today:** environment variables in the compose file (`PUBLIC_URL`,
Merge branch 'worktree-agent-aaf03bdceac799c89'383 `G1T_PORT`, `API_PORT`, `API_URL`, `MCP_URL`, `MAIL_URL`, `MAIL_FROM`,
384 the S3 store and its buckets). Keys (`ACTIONS_KEY`,
Running g1t yourself: the design, a docker compose proof, and a guide to what works today385 `INTEGRATIONS_KEY`, `WEBHOOKS_KEY`, the git store secret) are generated on
386 first start and kept on volumes.
387- **Phase 2:** one `g1t.toml`, read by the launcher and turned into
388 bindings and variables:
389
390 ```toml
391 public_url = "https://git.example.com"
392
393 [mail]
394 smtp = "smtp://user:pass@smtp.example.com:587"
395 from = "g1t <git@example.com>"
396
397 [agents] # off when absent
398 docker = "unix:///var/run/docker.sock"
399 egress = "enforce"
400
401 [context] # off when absent
402 embeddings = "http://ollama:11434/v1"
403 model = "nomic-embed-text"
404
405 [admins]
406 usernames = ["alice"]
407 ```
408
409- **Upgrades.** The container applies every service's D1 migrations to its
410 SQLite file on start (`wrangler d1 migrations apply --local`). Applied
411 migrations are recorded in `d1_migrations`, so this is idempotent. Hosted
412 and self-hosted run the same migration files, which keeps them
413 forward-compatible. Rule to keep: migrations stay additive, or come with
414 a backfill a self-hoster's start can run.
415- **Backups.** Phase 1: stop, then tar the `g1t-data` and `g1t-git`
416 volumes (documented in the guide). Phase 2: online backups with
Merge branch 'worktree-agent-ac5b181a013e54348'417 `sqlite3 .backup` per database, or Litestream for continuous
418 replication. The repositories get hosted g1t's nightly bundles
419 (docs/ARTIFACTS.md, R11) once the runner runs: the storage is already
420 configured (`BACKUP_STORE=s3`, the `g1t-backups` bucket that
Merge branch 'worktree-agent-af58ac8933b0dd125'421 `storage-setup` makes, `BACKUP_S3_BUCKET` to choose another), and the
Merge branch 'worktree-agent-ac5b181a013e54348'422 restore drill reads a copy of that bucket
Merge branch 'worktree-agent-af58ac8933b0dd125'423 (`aws --endpoint-url <S3_ENDPOINT> s3 sync s3://g1t-backups ./copy`, then
Merge branch 'worktree-agent-ac5b181a013e54348'424 `node scripts/ops/backup-restore-drill.mjs --bundles ./copy --repo-id <id> --live <bare repository>`).
Running g1t yourself: the design, a docker compose proof, and a guide to what works today425
426## 3. Phase 1: what works today
427
428Everything is in `deploy/self-host/`:
429
430| File | What it is |
431| --- | --- |
Merge branch 'worktree-agent-af58ac8933b0dd125'432| `docker-compose.yml` | `g1t` (every core Worker in one workerd on 8787, and the API in a second on 8789), `status`, `gitstore` (bare repositories), `rustfs` (S3-compatible storage for packages, backups and clone packs; `RUSTFS_IMAGE`, default `rustfs/rustfs:1.0.1`), `storage-setup` (the AWS CLI, `AWS_CLI_IMAGE`, default `amazon/aws-cli:2.37.10`: makes the three buckets and puts the packs' bucket's lifecycle rule, which expires `packs/` after 7 days and aborts multipart uploads unfinished after a day; RustFS's scanner applies it), and `mailpit` (mail). Volumes: `g1t-data`, `g1t-git`, `g1t-objects`, `g1t-status`, `g1t-secrets`. |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today433| `Dockerfile` | Compiles the ten Rust services to WebAssembly with `worker-build`, as hosted does. Builds the site with React Router. The runtime image has Node, Wrangler, workerd and the built Workers. |
434| `Dockerfile.dockerignore` | Build-context rules for this image only (the root `.dockerignore` leaves out the site). |
Merge branch 'worktree-agent-aaf03bdceac799c89'435| `start.sh` | Makes the sealing keys once, writes the configs, applies migrations, runs `wrangler dev` with every config on `0.0.0.0:8787`, persisting to `/data/state`, and the API's `wrangler dev` on `0.0.0.0:8789` once the first answers. Starts `scheduler.mjs`. |
436| `scheduler.mjs` | The cron ticker (see Cron Triggers above). |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today437| `configs.mjs` | Derives each self-hosted Wrangler config from the hosted `wrangler.jsonc`. It drops routes, account and placement, rebinds `ARTIFACTS`/`EMAIL` and the off services, and rewrites hosted URLs. Derived, so it cannot drift. |
438| `gitstore/server.mjs`, `gitstore/Dockerfile` | The git store. |
439| `workers/artifacts/index.js` | The `ARTIFACTS` binding, implemented against the git store. |
440| `workers/mail/index.js` | The `EMAIL` binding: logs, then sends to Mailpit. |
441| `workers/off/index.js` | The runner and the context hub when they are off. |
Merge branch 'worktree-agent-af58ac8933b0dd125'442| `smoke.sh` | The end-to-end check, including the clone pack cache, the API, an npm package published and installed, pull requests, the merge queue and (with `SCHEDULER_ONCE`) every cron handler. |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today443
444Workers running: the site; identity, repos, work, events, projects, search,
Merge branch 'worktree-agent-aaf03bdceac799c89'445billing, security, actions, webhooks, integrations, packages and
446deployments; the artifacts, mail and two off stand-ins; and, in a second
447workerd, the API.
Running g1t yourself: the design, a docker compose proof, and a guide to what works today448
449### Verified
450
451On this machine (Windows 11, Docker Desktop 29.8, engine on Linux):
452
4531. **Without Docker, with local processes.** The git store ran under Node
454 on Windows and every Worker ran under `wrangler dev`, using the configs
455 from `configs.mjs` and the existing Rust builds. `smoke.sh` passed every
456 step: sign-up, confirmation through the logged link, workspace, repo,
457 `git push` and `git clone` over HTTP, issue, and the code, blob and
458 commits pages. Seventeen other pages answered 200: home, workspace,
459 repo overview, issues, pulls, settings, agents, actions, deployments,
460 security, people, usage, explore, search, account settings and tree.
461 The workspace context page answered 403 from the off stand-in, as
462 intended.
Merge branch 'worktree-agent-aaf03bdceac799c89'4632. **With Docker Compose** (2026-10-07, `docker compose up --build`, with
Merge branch 'worktree-agent-af58ac8933b0dd125'464 `API_PORT=18789` because 8789 was taken on this machine; the store is
465 RustFS 1.0.1, its buckets made by `storage-setup`). `smoke.sh`
Merge branch 'worktree-agent-aaf03bdceac799c89'466 passed every step: the ones above; a second clone answered from the pack
Merge branch 'worktree-agent-af58ac8933b0dd125'467 cache (`Server-Timing: pack;desc=hit`), with the packs in RustFS's
468 `g1t-git-packs` and its lifecycle rule in place (packs expire after 7
469 days, unfinished uploads are aborted after 1); an access token made in the
470 site; an npm package published to the installation's registry and
471 installed back, its tarball in `g1t-packages`; `GET /user`, the API index (`mcp_url`, `git_url`), the OAuth
Merge branch 'worktree-agent-aaf03bdceac799c89'472 metadata (`issuer` the API's address, `authorization_endpoint` on the
473 site), MCP's 401 challenge and `tools/list`; a pull request from a branch
474 and one from a fork (`create_pull_request` without a branch: a fork in
475 the git store, pushed to with the token, marked ready) merged onto
476 `main`; the merge queue turned on, a pull request merged into it and
477 shown `waiting`, taken out (`unqueue`), the queue turned off and the
478 pull request merged; and `scheduler.mjs --once`, every handler `ok`.
479 The repository page's clone box and MCP line named the installation's
Merge branch 'worktree-agent-af58ac8933b0dd125'480 own addresses, with no social card tags. By hand against the same
481 stack: `docker push` and `docker pull` of an image with a 20 MB layer
482 (uploaded in 10 MiB parts), the layer read back from `/v2/.../blobs/`
483 with a matching digest, the `g1t-backups` bucket present (empty: the
484 runner cuts bundles), no unfinished upload in any bucket, and the
485 guide's upgrade copy from an old MinIO volume into RustFS.
4863. **The clone pack cache against RustFS without the stack.**
487 `node services/repos/dev/clone-check.mjs --s3` (RustFS in Docker, the
488 bucket and lifecycle rule made with the AWS CLI): misses then hits for
489 full and shallow clones over protocol v2 and v0, a miss after the refs
490 version moves, five whole packs in the bucket (12 MB each, multipart
491 objects of 3 parts), each reading back at its listed size, no
492 unfinished upload, and both lifecycle rules.
Running g1t yourself: the design, a docker compose proof, and a guide to what works today493
494### Not verified, or not working yet
495
Merge branch 'worktree-agent-aaf03bdceac799c89'496- The merge queue past `waiting`, and catch-up (bringing a pull request
497 up to date before it lands): both need a sandbox, and the runner is off.
Packages, with a container registry on g1t.sh; workspaces deleted whole and kept 30 days; Members for every member498- Actions schedules (`on: schedule`), and billing's and deployments' crons.
Merge branch 'worktree-agent-aaf03bdceac799c89'499- The CLI, and git over SSH.
500- An OAuth sign-in from start to finish (the metadata and issuer are
501 checked, the consent flow is not).
Running g1t yourself: the design, a docker compose proof, and a guide to what works today502- Anything on an address other than `localhost` without HTTPS (the
503 session cookie is `Secure`).
504- Restart durability beyond one restart, upgrades across schema changes,
505 and backup and restore.
506
507## 4. Phased plan
508
509Estimates are for one engineer who knows the codebase, working with
510agents. They include docs and tests.
511
512| Phase | Scope | Estimate |
513| --- | --- | --- |
Merge branch 'worktree-agent-aaf03bdceac799c89'514| **1. Core forge** | **Done:** compose stack, git store, Artifacts/Email shims, off stand-ins, config generator, smoke test, guide; the API (REST, MCP, OAuth) on its own port with a `PUBLIC_URL`-derived issuer; `PUBLIC_URL`-derived settings in identity mail, the site's meta tags, clone box and agent setup, and the API; the cron ticker; the clone pack cache on S3; pull requests from branches and forks and the merge queue's enqueue and removal in `smoke.sh`. **Left:** optional Caddy for HTTPS; a CI job that builds the images and runs `smoke.sh`; the remaining hard-coded addresses listed above. | 2–3 days left |
Running g1t yourself: the design, a docker compose proof, and a guide to what works today515| **2. Agents with Docker sandboxes** | Test Wrangler's local Containers first. Otherwise: `g1t-sandboxd` supervisor, `DockerSandbox` adapter in the runner, egress allow-list proxy and internal network, runner addresses from `PUBLIC_URL`, models through a workspace's own provider, `g1t.toml` and a launcher that replaces `wrangler dev`. | 2–3 weeks |
516| **3. Search, context and deployments** | `Embedder` (OpenAI-compatible) and `VectorIndex` (sqlite-vec first) ports in context; app host on workerd with Worker Loader; Caddy on-demand TLS for app and custom domains; git over SSH through `crates/sshd` plus the missing `/_internal/ssh/*` endpoints. | 3–4 weeks |
517| **4. Parity and upgrade path** | Code-level ports in `g1t_kit` / `@g1t/platform` replacing the binding shims (`LocalGitStore` in Rust, `Mailer` with SMTP); `AdminAuth` for sudo; online backups (Litestream or `.backup`); versioned releases with published images; an upgrade test in CI that migrates a snapshot of the previous release; a self-host column in the docs for every feature. | 3–4 weeks |
518
519Total to parity: about 10–13 weeks. Phase 1 alone is already a credible
520"run it yourself" for the core forge.
521
522## 5. Risks
523
524- **`wrangler dev` is a development tool.** It exposes Miniflare's dev
525 endpoints (`/cdn-cgi/...`, including a local data explorer) on the same
526 port as the site. Treat phase 1 as **localhost or a trusted private
527 network only** until the launcher in phase 2 replaces it. Its flags and
528 behaviour can also change between Wrangler releases. Pin the Wrangler
529 version, as the lockfile already does.
Merge branch 'worktree-agent-aaf03bdceac799c89'530- **The API reaches the other Workers through Wrangler's dev registry.**
531 Two `wrangler dev` processes in one container find each other through
532 a registry directory, a development feature like the rest. If the API
533 starts and a binding says `[not connected]`, restart the container. The
534 phase 2 launcher serves both from one workerd.
Merge branch 'worktree-agent-af58ac8933b0dd125'535- **The object store.** The compose file runs RustFS (Apache-2.0),
536 pinned to a release tag, and makes its buckets with the AWS CLI
537 (Apache-2.0). Any S3-compatible store can take its place
538 (`S3_ENDPOINT`), given the same buckets and the packs' lifecycle rule.
539 Installations started before 2026-10-07 kept these files in MinIO, in
540 the `g1t-packages` volume; the guide's "Upgrade" section copies them
541 across.
Packages, with a container registry on g1t.sh; workspaces deleted whole and kept 30 days; Members for every member542- **Cron goes through Wrangler's local API.** `scheduler.mjs` asks
543 `/cdn-cgi/local/explorer/api/local/scheduled`, a development endpoint
544 that may change between Wrangler releases (pinned by the lockfile).
545 Actions schedules, billing and deployments are not run.
Running g1t yourself: the design, a docker compose proof, and a guide to what works today546- **New Cloudflare-only bindings break self-hosting silently.**
547 `configs.mjs` passes unknown keys through untouched. A new binding type
548 could make `wrangler dev` reach for a remote resource (for example
549 `remote: true`, AI or Vectorize) and prompt for a login. Mitigation: CI
550 that builds the compose stack and runs `smoke.sh` on every change, and an
551 allow-list in `configs.mjs` that fails on unknown binding types.
552- **Artifacts semantics drift.** The shim copies the Artifacts methods g1t
553 uses today. If repos starts using another method (`import`,
554 `listTokens`, `revokeToken`), self-hosted fails at runtime. Mitigation: a
555 contract test that runs `services/repos` against the git store, and the
556 long-term `LocalGitStore` port.
557- **Error codes over RPC.** `ArtifactsStore::create` and `fork` tolerate
558 `ALREADY_EXISTS` by reading the thrown error's `code`. Workers RPC may not
559 carry custom error properties across a service binding. If it does not,
560 retrying a half-finished create fails self-hosted where it would succeed
561 hosted. This was not seen in testing, because creates were never retried.
562- **Single node, single writer.** SQLite (D1 local) and one workerd
563 process suit a team, not a large organisation. Scaling out means
564 Postgres behind a `Database` port, which is a large change and is not
565 planned.
566- **The `Secure` cookie.** It needs HTTPS anywhere but `localhost`. A LAN
567 install over plain HTTP cannot sign in.
568- **Building from a working tree that is mid-change.** The image compiles
569 every Rust service, including ones other work is changing. A service that
570 does not compile breaks the whole image. Released images (phase 4) fix
571 this.
572- **Image size and build time.** The first build compiles ten Rust crates
573 to WebAssembly and installs the site's dependencies. Expect minutes and
574 several GB. Published images remove this for users.
Merge branch 'worktree-agent-aaf03bdceac799c89'575- **Hard-coded hosted URLs.** The few left (listed above) point at the
576 hosted service until they read a setting: the docs link, invite and
577 runner defaults, and the runner's remotes.

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