Visual hierarchical graph editor that generates configuration.nix and deploys via nixos-rebuild switch.
Nodes are Nix fragments
Gateways descend into subgraphs (floors)
NixOS merges the composed fragments automatically
One-click deploy to a real NixOS machine
OODN registry for ambient config (hostname, timezone, stateVersion…)
Pre-built stacks (Grafana+Prometheus, Web Server, etc.)
Built with Elixir/Phoenix. Early stage but working end-to-end.
Looking for feedback, improvement ideas, and anyone interested in contributing templates or backends.
All discussion welcome.
The description reads nice, I am searching for a nicer config editor for a while already!
Some screenshots here and/or in the README would be nice. I barely can imagine how this might look like in practice, and at the same time, I can not just try it out, as my NixOS setup is… Not quite the norm.
Also are flakes supported or flake support planned?
Flakes support is not yet implemented — currently targeting classic configuration.nix — but it’s high on the roadmap. The backend is pluggable so it’s a natural next step. What’s your NixOS setup if you don’t mind sharing?
That’s a beautiful config — exactly the kind of complexity Tomato aims to make navigable visually. Flakes support is the clear gap right now.
With flakes you’d have per-host graphs, shared module subgraphs reused across machines, home-manager as another floor.
That’s the roadmap. Mind if I use your config as a reference for the flakes backend design?
