fix: serve the website dist so Coolify answers GET /

Nixpacks built Vite but had no production start command, so Coolify returned Cannot GET /.

Co-authored-by: Cursor <cursoragent@cursor.com>

AGENTS.md

@@ -199,7 +199,7 @@ When the user corrects you, a test or review proves a mistake, or you discover a
 
 ## Lessons
 
-- *(Add one-line prevention rules here as mistakes are verified.)*
+- Website Coolify deploys must `npm start` (`server.mjs`) or the Dockerfile; Vite preview is not production.
 
 ## Memory protocol
 

CLAUDE.md

@@ -336,6 +336,7 @@ Keep rules general, evidence-backed, and under 20 words. Never add secrets, pers
 - Bump `version` in `package.json` only (+ lockfile); the manifest derives it via `pkg.version`.
 - Style inline; Tailwind classes do nothing until PostCSS is wired.
 - Verify CHANGELOG entries against code, not commit subjects or handoff summaries.
+- Website Coolify deploys must `npm start` (`server.mjs`) or the Dockerfile; Vite preview is not production.
 
 ## Memory protocol
 

docs/EVALS.md

@@ -4,7 +4,15 @@ This file contains small, repeatable checks derived from verified failures. Pref
 
 ## Active failure-derived checks
 
-_No failure-derived checks yet._
+### E-2026-08-17-01 — Website production server answers GET /
+
+- **Prevents:** L-2026-08-17-01 (`Cannot GET /` on Coolify)
+- **Type:** command
+- **How to run:** `npm run website:build`; then from `packages/website` `PORT=34567 node server.mjs` and GET `http://127.0.0.1:34567/`
+- **Pass condition:** HTTP 200 and body contains `LexAI`; `/healthz` returns `ok`
+- **Failure signal:** `Cannot GET /`, connection refused, or 500 `dist/ missing`
+- **Cost:** fast
+- **Last verified:** 2026-08-17 pass (status 200, title present)
 
 ## Eval template
 

docs/HANDOFF.md

@@ -4,8 +4,8 @@
 
 ## Current state
 
-- **Outcome:** `packages/website` now uses the four-page structure: Home, Docs, Contribute, Community.
-- **Home:** hero + features + Getting started (Chrome / VS Code / CLI) + privacy.
-- **Routes:** `/` `/docs` `/contribute` `/community` (HashRouter).
-- **Verified:** `website:typecheck` + `website:build` passed.
-- **Next smallest action:** Deploy `packages/website` on Coolify (base `/packages/website`, static, publish `/dist`).
+- **Outcome:** Coolify `Cannot GET /` fixed — website now has a production static server and a Dockerfile.
+- **Cause:** Nixpacks built Vite `dist/` but had no `start` command; README also told Coolify to publish `/dist` (absolute empty path).
+- **Shipped:** `packages/website/server.mjs` (`npm start` on `0.0.0.0:$PORT`); `Dockerfile` + `nginx.conf`; `nixpacks.toml` `[start]`; Vite `base` is `/`.
+- **Verified:** `website:typecheck` + `website:build`; local `node server.mjs` → GET `/` 200 (LexAI HTML), `/healthz` 200, JS asset `text/javascript`.
+- **Next smallest action:** Redeploy the Coolify app with Base Directory `packages/website` (no leading slash), static site **off**, Dockerfile port 80 or Nixpacks port 3000.

docs/LESSONS_LEARNED.md

@@ -6,7 +6,15 @@ This is the project’s shared, evidence-backed memory of mistakes worth prevent
 
 `AGENTS.md` → `## Lessons` is the canonical active rule list loaded every session. Keep supporting evidence here; mirror an active rule here only when its detail is useful for maintenance. Keep at most 12 active rules, each short and imperative.
 
-_No active guardrails yet._
+### L-2026-08-17-01 — Serve website `dist/` on `0.0.0.0:$PORT`; do not use Vite preview in production
+
+- **Status:** active
+- **Trigger:** Coolify deploy of `packages/website` returned Express/Connect `Cannot GET /`.
+- **Root cause / failure boundary:** No `start` script; Nixpacks built `dist/` then started a Node process that did not serve it. README Publish Directory `/dist` is an absolute empty path.
+- **Prevention:** `packages/website/server.mjs` + `npm start`, or `packages/website/Dockerfile`. Coolify: Base Directory `packages/website`, static site off.
+- **Evidence:** Local `node server.mjs` GET `/` → 200 with LexAI HTML; `/healthz` → 200.
+- **Eval:** E-2026-08-17-01
+- **Owner / review:** lead / after first successful Coolify deploy
 
 ## Recording policy
 

docs/MEMORY.md

@@ -17,7 +17,7 @@
 - Style Chrome UI with inline styles (Tailwind not wired).
 - Prefer encrypted Chrome key path; keep plaintext `apiKey` fallback until migration.
 - VS Code / CLI must not import `@lib/crypto` or `@lib/messaging`.
-- Root scripts: `install:all`, `chrome:*`, `vscode:*`, `cli:*`.
+- Root scripts: `install:all`, `chrome:*`, `vscode:*`, `cli:*`, `website:*`.
 
 ## Environment quirks
 
@@ -32,7 +32,7 @@
 | Shared lib | `src/lib/` |
 | VS Code | `packages/vscode/` |
 | CLI | `packages/cli/` |
-| Website | `packages/website/` (Vite React; Home, Docs, Contribute, Community) |
+| Website | `packages/website/` (Vite React; Home, Docs, Contribute, Community). Production: `npm start` → `server.mjs`, or `Dockerfile` (nginx :80). Coolify base `packages/website`, static site off. |
 | OSS meta | root `README.md`, `LICENSE`, `CONTRIBUTING.md`, `CODE_OF_CONDUCT.md` |
 | Issue/PR templates | `.gitea/ISSUE_TEMPLATE/`, `.gitea/PULL_REQUEST_TEMPLATE.md` |
 | CI workflows | `.gitea/workflows/ci-{chrome,vscode,cli,website}.yml` (no deploy/release yet) |

docs/PROGRESS.md

@@ -2,28 +2,32 @@
 
 > For the owner. What works, how to see it, and what's waiting on you — plain language.
 
-**Updated:** 2026-08-13 · **Overall:** Chrome LexAI unchanged; VS Code LexAI v1 ready to try locally
+**Updated:** 2026-08-17 · **Overall:** Website Coolify 404 is fixed in the repo; needs a redeploy
 
 ## What works now
 
-- Chrome extension (existing): select on any page → AI action → Replace/Copy
-- VS Code extension (new): select in editor → LexAI context menu / Command Palette → selection replaced
-- Shared LLM core (`src/lib`) used by both; VS Code key lives in Secret Storage
+- Chrome extension: select on any page → AI action → Replace/Copy
+- VS Code extension: select in editor → LexAI context menu / Command Palette → selection replaced
+- Website (`packages/website`): Home, Docs, Contribute, Community — production server answers `GET /` (this was the Coolify `Cannot GET /` failure)
 
-## See it yourself (VS Code) — about five minutes
+## See it yourself — website on Coolify
 
-1. From repo root: `npm run vscode:install` then `npm run vscode:build`
-2. Open `packages/vscode` in VS Code/Cursor → Run and Debug → **Run LexAI Extension** (F5), or `npm run vscode:package` and Install from VSIX
-3. Command Palette → **LexAI: Set API Key** → pick provider → paste key
-4. Select ≥10 characters in an editor → right-click → **LexAI** → Fix Grammar (or another action)
+1. Pull/push this change, then in Coolify set **Base Directory** to `packages/website` (no leading slash).
+2. Turn **Is it a static site?** **off**.
+3. Either **Build Pack: Dockerfile** and port **80**, or **Nixpacks** and port **3000**.
+4. Redeploy, then open the domain — you should see the LexAI home page, not `Cannot GET /`.
+5. Docs live at `https://your-domain/#/docs`.
+
+Local check: `npm run website:build` then `npm run website:start` and visit http://127.0.0.1:3000/
 
 ## Waiting on you
 
 | # | Decision | Options (recommended bold) | What it unblocks |
 | --- | --- | --- | --- |
-| 1 | Confirm Cursor mid/strong model picker IDs | **Keep written IDs** / send exact picker strings | reliable Task dispatch for builders/critics |
-| 2 | Grammarly reference screenshots? | **Later** / capture into `docs/reference/` | Chrome UX gauntlet |
-| 3 | Publish VS Code extension to Marketplace? | **Stay local for now** / set publisher + publish | public install |
+| 1 | Redeploy the Coolify website with the settings above | **Dockerfile + port 80** / Nixpacks + port 3000 | public LexAI site |
+| 2 | Confirm Cursor mid/strong model picker IDs | **Keep written IDs** / send exact picker strings | reliable Task dispatch |
+| 3 | Grammarly reference screenshots? | **Later** / capture into `docs/reference/` | Chrome UX gauntlet |
+| 4 | Publish VS Code extension to Marketplace? | **Stay local for now** / set publisher + publish | public install |
 
 ## Next up — proceeds without you
 

package.json

@@ -32,6 +32,7 @@
     "website:dev": "npm run dev --prefix packages/website",
     "website:build": "npm run build --prefix packages/website",
     "website:preview": "npm run preview --prefix packages/website",
+    "website:start": "npm start --prefix packages/website",
     "website:typecheck": "npm run typecheck --prefix packages/website",
     "install:all": "npm run chrome:install && npm run vscode:install && npm run cli:install && npm run website:install",
     "typecheck:all": "npm run chrome:typecheck && npm run vscode:typecheck && npm run cli:typecheck && npm run website:typecheck",

packages/website/.dockerignore

@@ -0,0 +1,3 @@
+node_modules
+dist
+*.md

packages/website/Dockerfile

@@ -0,0 +1,12 @@
+# syntax=docker/dockerfile:1
+FROM node:22-alpine AS build
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM nginx:1.27-alpine
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+EXPOSE 80

packages/website/README.md

@@ -24,27 +24,45 @@ npm run website:build
 # → packages/website/dist/
 ```
 
-Preview production build: `npm run website:preview`.
+Preview production build locally: `npm run website:preview` (Vite, localhost only).
 
-Uses HashRouter so the site works on static hosts without server-side rewrite rules.
+Production start (what Coolify should run): `npm start` — serves `dist/` on `0.0.0.0:$PORT` (default 3000).
+
+Uses HashRouter so deep links work even without SPA rewrite rules. The production server still maps unknown paths to `index.html`.
 
 ## Deploy on Coolify
 
-This package is a **static** Vite build (`dist/`). No LexAI API keys or env vars.
+This package is a static Vite build. No LexAI API keys or env vars. Do not add `LEXAI_API_KEY`.
 
-1. In Coolify: **+ New** → **Resource** → **Private Repository (with deploy key)** (Gitea).
-2. Repo SSH URL, for example `git@git.juankibin.space:kibin/LexAI.git`. If Gitea SSH is not on port 22, use `ssh://git@git.juankibin.space:PORT/kibin/LexAI.git` (Coolify sometimes needs `ssh:///` with three slashes).
+`Cannot GET /` means Coolify started a Node process that is not serving `dist/` (no `start` command, or "static site" pointed at the wrong folder). Fix: use one of the two setups below, then **Redeploy**.
+
+**Required on either setup**
+
+1. **+ New** → **Resource** → **Private Repository (with deploy key)** (Gitea).
+2. Repo SSH URL, for example `git@git.juankibin.space:kibin/LexAI.git`. If Gitea SSH is not on port 22, use `ssh://git@git.juankibin.space:PORT/kibin/LexAI.git`.
 3. Add Coolify’s public deploy key to the Gitea repo: **Settings → Deploy / Access Keys** (read-only).
 4. Branch: `dev` or `main`.
-5. **Build Pack:** Nixpacks.
-6. **Base Directory:** `/packages/website` — required. Root `npm run build` builds Chrome, not this site.
-7. Enable **Is it a static site?**
-8. **Publish Directory:** `/dist`
-9. **Install command** (if the build says `vite: not found`): `npm ci` (do not omit devDependencies — Vite lives there).
-10. Optional env: `NIXPACKS_NODE_VERSION=22`
-11. Optional **Watch Paths:** `packages/website` so Chrome/VS Code/CLI commits do not redeploy.
-12. Set the domain, **Deploy**, then open `https://your-domain/#/docs`.
+5. **Base Directory:** `packages/website` — no leading slash. Root `npm run build` builds Chrome, not this site.
+6. Optional **Watch Paths:** `packages/website`.
+7. Set the domain, deploy, open `https://your-domain/` (docs: `https://your-domain/#/docs`).
+
+### Option A — Dockerfile (recommended)
+
+1. **Build Pack:** Dockerfile.
+2. Leave **Is it a static site?** **off**.
+3. **Ports Exposes:** `80`.
+4. If Coolify asks for a Dockerfile path: `packages/website/Dockerfile` (or omit it when Base Directory is already `packages/website`).
+
+### Option B — Nixpacks
+
+1. **Build Pack:** Nixpacks.
+2. Leave **Is it a static site?** **off**. Nixpacks runs `npm run build` then `node server.mjs`.
+3. **Start command** (if the field is shown): `npm start` or `node server.mjs`.
+4. **Ports Exposes:** `3000`.
+5. Optional env: `NIXPACKS_NODE_VERSION=22`. Do not set `NODE_ENV=production` at **build** time — Vite is a devDependency and `npm ci` would skip it.
+
+Do **not** tick "Is it a static site?" with Publish Directory `/dist`. The leading slash is an absolute path (`/dist` on the container), which is empty, and Coolify then answers `Cannot GET /`.
+
+If you already created the resource: uncheck static site, set Base Directory and port as above, then Redeploy (no need to recreate the app).
 
 Auto-deploy: Coolify resource → **Webhooks** → copy the URL + secret into Gitea **Settings → Webhooks** (push events).
-
-Do not add `LEXAI_API_KEY` or any provider key to this Coolify app.

packages/website/nginx.conf

@@ -0,0 +1,16 @@
+server {
+  listen 80;
+  server_name _;
+  root /usr/share/nginx/html;
+  index index.html;
+
+  location = /healthz {
+    access_log off;
+    add_header Content-Type text/plain;
+    return 200 'ok';
+  }
+
+  location / {
+    try_files $uri $uri/ /index.html;
+  }
+}

packages/website/nixpacks.toml

@@ -6,3 +6,6 @@ cmds = ["npm ci"]
 
 [phases.build]
 cmds = ["npm run build"]
+
+[start]
+cmd = "node server.mjs"

packages/website/package.json

@@ -10,6 +10,7 @@
     "dev": "vite",
     "build": "tsc --noEmit && vite build",
     "preview": "vite preview",
+    "start": "node server.mjs",
     "typecheck": "tsc --noEmit"
   },
   "dependencies": {

packages/website/server.mjs

@@ -0,0 +1,81 @@
+import { createReadStream, existsSync, statSync } from 'node:fs';
+import { createServer } from 'node:http';
+import { extname, join, resolve, sep } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const root = resolve(fileURLToPath(new URL('./dist', import.meta.url)));
+const port = Number(process.env.PORT) || 3000;
+const host = process.env.HOST || '0.0.0.0';
+
+const MIME = {
+  '.css': 'text/css; charset=utf-8',
+  '.html': 'text/html; charset=utf-8',
+  '.ico': 'image/x-icon',
+  '.js': 'text/javascript; charset=utf-8',
+  '.json': 'application/json; charset=utf-8',
+  '.map': 'application/json; charset=utf-8',
+  '.png': 'image/png',
+  '.svg': 'image/svg+xml',
+  '.txt': 'text/plain; charset=utf-8',
+  '.webp': 'image/webp',
+  '.woff': 'font/woff',
+  '.woff2': 'font/woff2',
+};
+
+function fileUnderRoot(urlPath) {
+  const decoded = decodeURIComponent((urlPath ?? '/').split('?')[0] || '/');
+  const relative = decoded.replace(/^\/+/, '').replaceAll('/', sep);
+  const resolved = resolve(root, relative);
+  const prefix = root.endsWith(sep) ? root : root + sep;
+  if (resolved !== root && !resolved.startsWith(prefix)) return null;
+  return resolved;
+}
+
+function send(res, status, body, type = 'text/plain; charset=utf-8') {
+  res.writeHead(status, { 'Content-Type': type, 'Cache-Control': 'no-cache' });
+  res.end(body);
+}
+
+const server = createServer((req, res) => {
+  if (req.method === 'GET' && (req.url === '/healthz' || req.url?.startsWith('/healthz?'))) {
+    send(res, 200, 'ok');
+    return;
+  }
+
+  if (req.method !== 'GET' && req.method !== 'HEAD') {
+    send(res, 405, 'Method not allowed');
+    return;
+  }
+
+  const candidate = fileUnderRoot(req.url ?? '/');
+  if (!candidate) {
+    send(res, 400, 'Bad request');
+    return;
+  }
+
+  let file = candidate;
+  if (!existsSync(file) || statSync(file).isDirectory()) {
+    file = join(root, 'index.html');
+  }
+  if (!existsSync(file)) {
+    send(res, 500, 'dist/ missing — run npm run build before start');
+    return;
+  }
+
+  const type = MIME[extname(file).toLowerCase()] ?? 'application/octet-stream';
+  res.writeHead(200, { 'Content-Type': type });
+  if (req.method === 'HEAD') {
+    res.end();
+    return;
+  }
+  createReadStream(file).pipe(res);
+});
+
+if (!existsSync(join(root, 'index.html'))) {
+  console.error('dist/index.html missing — run npm run build before start');
+  process.exit(1);
+}
+
+server.listen(port, host, () => {
+  console.log(`LexAI website listening on http://${host}:${port}`);
+});

packages/website/vite.config.ts

@@ -3,5 +3,4 @@ import react from '@vitejs/plugin-react';
 
 export default defineConfig({
   plugins: [react()],
-  base: './',
 });