{
  description = "Dev Setup";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  inputs.systems.url = "github:nix-systems/default";
  inputs.pip2nix = {
    url = "github:nix-community/pip2nix";
    flake = false;
  };

  outputs = {nixpkgs, systems, pip2nix, ...}:
    let
      eachSystem = nixpkgs.lib.genAttrs (import systems);
      pkgs = import nixpkgs {
        system = "x86_64-linux";
        overlays = [
          (import ./python-overlay.nix)
          (import ./overlay.nix)
        ];
      };
    in
    {
      packages = eachSystem (system: {
        devEnv = pkgs.buildEnv {
          name = "erpnext-nix-dev-env";
          paths = [
            pkgs.dasel
          ];
        };
        inherit pkgs;
        run-erpnext = pkgs.run-erpnext;
        pip2nix = import "${pip2nix}/default.nix" { inherit pkgs; pythonPackages = "python310Packages"; };
        erpnext = pkgs.python3.pkgs.erpnext;
        bench = pkgs.python3.pkgs.bench;
        pythonPkgs = pkgs.python3.pkgs;
      });
      nixosConfigurations = {
        test-vm = nixpkgs.lib.nixosSystem {
          inherit pkgs;
          system = "x86_64-linux";
          modules = [./test-vm/configuration.nix];
        };
      };
    };
}