{
  description = "shop.tonybtw.com - Merch store";
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };
  outputs = {
    self,
    nixpkgs,
  }: let
    systems = ["x86_64-linux" "aarch64-linux"];

    forAllSystems = fn: nixpkgs.lib.genAttrs systems (system: fn nixpkgs.legacyPackages.${system});
  in {
    devShells = forAllSystems (pkgs: {
      default = pkgs.mkShell {
        packages = [
          pkgs.go
          pkgs.templ
          pkgs.air
          pkgs.mprocs
          pkgs.sqlite
          pkgs.just
        ];
        shellHook = ''
          export PS1="(shop) $PS1"
          export PATH=$PATH:~/go/bin
          echo ""
          echo "  shop.tonybtw.com"
          echo "  ----------------"
          echo "  mprocs       - dev server with hot reload"
          echo "  just db-init - setup database"
          echo ""
        '';
      };
    });

    formatter = forAllSystems (pkgs: pkgs.alejandra);
  };
}