devenv-inputs

name	devenv-inputs
description	Use when editing devenv.yaml or adding an input/import. Covers flake:false for modules, nixpkgs-python for version pins, and transitive inputs.
auto_trigger	{"keywords":["devenv.yaml","add input","add import","flake false","nixpkgs-python","module input","transitive input","version pin nix"]}

Adding inputs & imports in devenv.yaml

Three rules cover most input mistakes:

1. A devenv-module input needs flake: false. Without it, devenv tries to evaluate the input as a flake and the import fails.

   inputs:
     repoman:
       url: path:../repoman/modules
       flake: false
   

2. Pinning languages.python.version needs the nixpkgs-python input. A bare version string with no such input silently won't resolve.

3. Remote module imports merge devenv.nix, not devenv.yaml. A module you import does not bring its own inputs along — you must declare its transitive inputs in your devenv.yaml.

After any devenv.yaml change, re-lock: rm -f devenv.lock (or devenv update <input>) — see the devenv-module-edits skill. Grep-able detail: inputs-and-imports.md.

For when in the lifecycle to do this, see the repoman skill.