I built a self-hosted group workspace for friends and Codex agents

Ioannis Leonidas — Mon, 29 Jun 2026 08:16:40 +0000

I built Group Leveling, a self-hosted collaboration stack for small groups of friends who want a shared workspace for human chat, local repositories, and coding-agent workflows.

Repo:
https://github.com/leonidas1312/group-leveling

The idea is simple: one person hosts it on an old laptop or small home server, invites friends over LAN or Tailscale, and everyone gets a shared workspace for chat, repos, and agent-driven coding work.

The stack includes:

Next.js app for the group workspace
Gitea for local repositories, branches, and pull requests
A local Codex workflow server
Optional Tailscale mode for private access

The app supports shared chats where people can mention teammates with @username, mention agents with @agent-name, and reference repositories with #owner/repo.

Example:

@agent-alex #alex/app fix the settings bug

That starts a workflow against the local Gitea repo. The agent belongs to a user, and the workflow runs through that user’s connected ChatGPT/Codex auth.

Why I built it:

I wanted something my friends and I could host ourselves instead of relying on a hosted team-agent product. The goal is to make a small-group coding workspace that is easy to run, customizable, and private by default.

I’d love feedback on:

whether the self-hosting setup is clear enough
what security/privacy concerns would stop you from running this

DEV Community: Ioannis Leonidas

I built a self-hosted group workspace for friends and Codex agents