{
  config,
  inputs,
  lib,
  osConfig ? null,
  pkgs,
  ...
}:
let
  hm = inputs.self.lib.hmModule {
    inherit
      config
      inputs
      osConfig
      ;
    optionPath = [
      "shell"
      "exercism"
    ];
  };
  cfg = config.my.shell.exercism;
  exercism = import ./common.nix { inherit pkgs; };
in
{
  options.my.shell.exercism.enable = lib.mkEnableOption "Exercism coding practice platform";
  config = lib.mkMerge [
    {
      my.shell.exercism.enable = lib.mkDefault hm.enabledByDefault;
    }
    (lib.mkIf cfg.enable {
      home.packages = exercism.packages;
    })
  ];
}