{
  description = "URL shortener written in Go";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";

    treefmt-nix.url = "github:numtide/treefmt-nix";
  };

  outputs = inputs @ {flake-parts, ...}:
    flake-parts.lib.mkFlake {inherit inputs;} ({...}: {
      imports = [
        inputs.treefmt-nix.flakeModule
      ];
      systems = ["x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin"];

      perSystem = {pkgs, ...}: {
        treefmt = {
          projectRootFile = ".git/config";
          programs = {
            alejandra.enable = true;
            deadnix.enable = true;
            gofumpt.enable = true;
            prettier.enable = true;
          };
        };

        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            # Go tools
            go
            gopls

            # Database
            atlas
            sqlc
            postgresql_16

            # Lint
            golangci-lint

            # Tools
            just
          ];
        };
      };
    });
}