Robot U Site Prototype

Thin frontend layer over Forgejo for community learning content, discussions, and events.

Stack

FastAPI backend
Preact + TypeScript frontend built with Vite
bun for frontend tooling
uv + ruff for Python checks

Local Development

Backend

python3 -m venv .venv
.venv/bin/pip install -r requirements.txt
.venv/bin/python -m uvicorn app:app --reload

Start App

Build the frontend and then serve the app from FastAPI:

./scripts/start.sh

The script automatically loads .env and .env.local if present.

Optional runtime overrides:

HOST=0.0.0.0 PORT=8800 ./scripts/start.sh

Optional live Forgejo configuration:

export APP_BASE_URL="http://kacper-dev-pod:8800"
export AUTH_SECRET_KEY="$(openssl rand -hex 32)"
export FORGEJO_BASE_URL="https://aksal.cloud"
export FORGEJO_OAUTH_CLIENT_ID="your-forgejo-oauth-client-id"
export FORGEJO_OAUTH_CLIENT_SECRET="your-forgejo-oauth-client-secret"
export FORGEJO_OAUTH_SCOPES="openid profile"
export FORGEJO_GENERAL_DISCUSSION_REPO="Robot-U/general_forum"
export FORGEJO_WEBHOOK_SECRET="shared-webhook-secret"
export FORGEJO_CACHE_TTL_SECONDS="60.0"
export CALENDAR_FEED_URLS="webcal://example.com/calendar.ics,https://example.com/other.ics"

APP_BASE_URL must match the URL you use in the browser. Create the OAuth app in Forgejo with this redirect URI:

http://kacper-dev-pod:8800/api/auth/forgejo/callback

AUTH_SECRET_KEY is required for Forgejo OAuth sign-in. It encrypts the HttpOnly browser session cookie that carries the signed-in user's Forgejo token and identity. Set AUTH_COOKIE_SECURE=true when serving over HTTPS.

FORGEJO_TOKEN is optional. When set, it is a read fallback for the public content cache. Browser OAuth requests only identity scopes, then the backend uses the signed-in user's Forgejo identity from the encrypted session cookie for public discussion creation and replies. The backend must verify repositories are public before reading discussion data or writing issues/comments.

FORGEJO_CACHE_TTL_SECONDS controls how long the server reuses the public Forgejo content scan for /api/prototype. Set it to 0 to disable caching while debugging discovery behavior.

FORGEJO_GENERAL_DISCUSSION_REPO should point at the public owner/repo used for general discussion threads. Post- and lesson-linked discussions are created in the same repo as the content being discussed.

FORGEJO_WEBHOOK_SECRET is optional but recommended. Configure Forgejo webhooks to POST to /api/forgejo/webhook; matching webhook events invalidate the public content cache and notify open browsers over /api/events/stream.

Or put those values in .env:

cp .env.example .env

Use the site Sign in button for Forgejo OAuth, or query the API directly with:

curl -H "Authorization: token your-forgejo-api-token" http://127.0.0.1:8800/api/prototype

Frontend

cd frontend
~/.bun/bin/bun install
~/.bun/bin/bun run dev

Quality Checks

./scripts/check_python_quality.sh
./scripts/check_frontend_quality.sh

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