Cycling Zone

Browser-baseret multiplayer cykelmanager-spil. Bygget af én person, gratis at spille, åben for testere.

Spil her: cyclingzone.org

What is this?

Cycling Zone is a small, browser-based multiplayer cycling manager game. You sign up, get a team, bid on riders in live auctions, set tactics, and compete against other managers across a season calendar. The game is free, has been free since launch, and will always remain free.

I'm a solo founder building this in public. The game has been in open beta since 2026-05-08, with a small group of testers actively playing. I share the thinking and trade-offs as they happen, not after the fact.

If you want to play, just sign up at cyclingzone.org.

Tech stack

React + Vite (frontend), Node.js + Express (backend), Supabase (Postgres, Auth, RLS), Vercel + Railway (hosting).

Status

Live and being actively developed. Open beta, so breaking changes happen. Patch notes are visible inside the app on the Patch Notes page.

---

For contributors

This repo is closed-source, made publicly viewable for transparency, learning, and collaboration. The full terms are in LICENSE.

• Bug reports and ideas: open an issue. Be specific and I'll get back to you.
• Pull requests: welcome. By submitting one, you grant me the contributor license described in LICENSE.
• Security issues: please don't file public issues. See SECURITY.md for private reporting.

You can read the code, learn from it, and contribute back. You cannot fork, mirror, redistribute, or run your own instance of the game. Full terms in LICENSE.

---

Running it locally

You don't need to run this locally to play, just go to cyclingzone.org. The steps below are for contributors who want to work on the code.

1. Supabase

1. Create a free project at supabase.com.
2. In the SQL Editor, run database/schema.sql.
3. From Settings → API, copy Project URL, anon public key, and service_role key.

2. Backend

cd backend
npm install
cp .env.example .env

Fill in the Supabase keys you just copied, then:

npm run dev

Backend runs on http://localhost:3001.

3. Frontend

cd frontend
npm install
cp .env.example .env

Fill in VITE_SUPABASE_URL and VITE_SUPABASE_ANON_KEY, then:

npm run dev

Frontend runs on http://localhost:5173.

4. Verify the build

From the repo root:

pwsh -File scripts/verify-local.ps1

Runs backend tests and (if frontend/node_modules is present) the frontend build.

---

Project docs

Canonical docs live in docs/:

• docs/NOW.md: active work and current status.
• docs/META_DOCS_INDEX.md: index of all docs (read this if you're looking for something specific).
• docs/GUARDRAILS_CORE.md: invariants and stop conditions (read when changing shared contracts).
• docs/DEPLOYMENT.md: production deployment, observability, env vars.
• docs/PUBLIC_ROADMAP.md: what's planned, in player-facing language.

If you're an AI coding agent: start with CLAUDE.md (Claude Code) or AGENTS.md (OpenAI Codex).

---

Contact

Questions, ideas, or licensing inquiries: nicolai.dolmer.mikkelsen@gmail.com.