{ ... }:

let
  mkSysRole = role: 
    let
      path = ../roles + "/${role}.nix";
    in
    if builtins.pathExists path then
      import path
    else
      throw "System role '${role}' not found at ${toString path}";
  
  mkHomeRole = role:
    let
      path = ../roles/home + "/${role}.nix";
    in
    if builtins.pathExists path then
      import path
    else
      throw "Home role '${role}' not found at ${toString path}";
in
{
  inherit mkSysRole mkHomeRole;
}