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

    opdavies-theme = {
      inputs.nixpkgs.follows = "nixpkgs";
      url = "path:./themes/opdavies";
    };
  };

  outputs =
    { nixpkgs, opdavies-theme, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };

      php = pkgs.php83.buildEnv {
        extraConfig = ''
          upload_max_filesize = 50M;
          post_max_size = 50M;
        '';
      };
      phpPackages = pkgs.php83Packages;
    in
    {
      devShells.${system}.default = pkgs.mkShell {
        inputsFrom = [
          opdavies-theme.devShells.${system}.default
        ];

        packages = with pkgs; [
          just
          lua-language-server
          lua54Packages.luacheck
          nixd
          php
          phpactor
          phpPackages.composer
          sqlite
        ];
      };

      formatter.${system} = pkgs.nixfmt-rfc-style;
    };
}