Warning

✨ Under Construction ✨

Cerulean is in an experimental alpha release stage.
Be not afraid! It's only a matter of time until Cerulean is ready for use!

If you're curious about or want to use Cerulean then
please please please contact me on Bluesky @dobutterfliescry.net.
(i would actually melt and fall in love with you...)

🌌 🚀 Cerulean Nexus

The culmination of 2 years designing better Nix flakes. Cerulean removes the boilerplate of managing NixOS infrastructure by declaring each machine as a node and their relationships as "Nexus Networks", virtual networks of servers that Cerulean can manage. Each Nexus is very powerful. Allowing for simple distributed computing, automatic construction of VPNs, DNS for local hostnames, and that's just scratching the surface...

• Is your node a VPS? Set deploy.ssh.host = "example.com" and Cerulean will configure custom build users, ssh deployment via custom PAM modules, etc etc
• Is your node a VM? Set vms = [ nodes.VM_NODE ] on your host node, and Cerulean will configure all the bridging, NAT, and other networking you so desire!

🩷💜 Motivation

Nix is intended as a non-restrictive & unopinionated system, which is amazing, but it also means every user develops their own standards to simplify their config. Cerulean however is very much opinionated and contains all the standards I personally believe should be sane defaults for every NixOS machine.

Flakes are not designed for NixOS, they're designed for Nix, and that's an important distinction.

Flakes and NixOS don't offer anything to simplify managing interconnected nodes of machines. But this ends with extremely messy configs with a lot of footguns. You shouldn't have to spend days reading about networking and learning to work with other peoples' modules.

Finally, the Nix module system assumes you only use one channel of github:NixOS/nixpkgs but this just isn't realistic. Most people have both inputs.nixpkgs and inputs.nixpkgs-unstable defined. So cerulean declares the nixpkgs.channels.* option so you don't have to import your channels manually!

💙 Same Colour, More Control

Note

This section is mostly for the business minded people.

Cerulean is what you wish Azure could be. Providing an expansive collection of microservices, pre-configured systems, and entirely self-hosted! Cerulean is built using NixOS as a foundation so you know it's never going to break randomly. NixOS backing makes Cerulean extremely scalable! Just rent a new VPS and Cerulean will build an ISO of your configuration.

No stress, no hassle! Say goodbye to Azure! And say goodbye to Kubernetes! You're taking life into your own hands 💙