Installation

nix-env

git clone https://github.com/vlinkz/nix-editor
nix-env -f nix-editor -i nix-editor

nix profile

nix profile install github:vlinkz/nix-editor

Run with Nix Flakes

nix run github:vlinkz/nix-editor -- --help

Usage: nix-editor [OPTIONS] <FILE> <ATTRIBUTE>

Arguments:
  <FILE>       Configuration file to read
  <ATTRIBUTE>  Nix configuration option arribute

Options:
  -v, --val <VAL>        Value to write
  -a, --arr <ARR>        Element to add
  -d, --deref            Dereference the value of the attribute
  -i, --inplace          Edit the file in-place
  -o, --output <OUTPUT>  Output file for modified config or read value
  -r, --raw              Prints console output without newlines or trimmed output
  -f, --format           Formats output using nixpkgs-fmt. Helps when writing new values
  -h, --help             Print help
  -V, --version          Print version