Thanks for linking Codeberg—I've moved redAtlas (formerly hexAtlas) there at https://codeberg.org/hex_atlas/redAtlas. It also has backend code to run locally via Docker.

I'm focusing on development over at https://github.com/hexatlas/lemmy-atlas, which is currently hosted on Netlify (privacy concerns aside, it’s free). You can check the live site here: redatlas.app.

Things are still a bit buggy, but I'm making progress. If someone wants to host it themselves, I can point the domain there. More updates coming soon once things stabilize!