eh

name	eh
description	Use this skill when the user needs ergonomic Nix CLI shortcuts with auto-retry — shorter, smarter alternatives to raw `nix` subcommands. Applies when discussing `ns`, `nb`, `nr`, `nd`, or "nix helper tools", even without mentioning "eh".
metadata	{"input_rev":"6351cb76a5256bd71807f244b541a79d5d4d3cd1","input_hash":"sha256-xNmvz86FgLo41jQHMol361/TI7PTa3MYE8Ywnqr7NlA=","when_to_use":"eh, ns, nb, nr, nd, nix shell shortcuts, ergonomic nix CLI"}

Pin check

grep -A4 '"eh"' flake.lock | grep narHash Expected: sha256-xNmvz86FgLo41jQHMol361/TI7PTa3MYE8Ywnqr7NlA= If different, update metadata.input_hash and metadata.input_rev.

Action

1. Enable on a host by importing the feature module at modules/nixosModules/features/eh.nix.
2. The module imports inputs.eh.nixosModules.default and sets programs.eh.enable = true.
3. After rebuild, use ns, nb, nr, nd as ergonomic shortcuts for nix shell/build/run/develop.

Gotchas

• The auto-retry only covers --impure, --allow-unfree, and broken/insecure flags. It does not retry on download failures or eval errors.

Verification

grep -rn '"eh"' modules/nixosModules/hosts/epsilon/configuration.nix modules/nixosModules/hosts/delta/configuration.nix