{pkgs, ...}:
with pkgs; let
  sources = import ../_sources/generated.nix {inherit (pkgs) fetchurl fetchFromGitHub fetchgit dockerTools;};
in
  emacsWithPackagesFromUsePackage {
    config = ./init.org;
    defaultInitFile = true;

    package =
      if pkgs.stdenv.isDarwin
      then emacs29-pgtk.overrideAttrs (old: let
        getPatch = name: sources.${name}.src;
      in {
        patches =
          (old.patches or [])
          ++ [
            # Fix OS window role (needed for window managers like yabai)
            (getPatch "fix-window-role")
            # Use poll instead of select to get file descriptors
            (getPatch "poll")
            # Enable rounded window with no decoration
            (getPatch "round-undecorated-frame")
            # Make Emacs aware of OS-level light/dark mode
            (getPatch "system-appearance")
          ];
      })
      else pkgs.emacs29-pgtk;

    alwaysEnsure = true;
    alwaysTangle = true;

    extraEmacsPackages = epkgs:
      with epkgs;
        [
          treemacs
          treemacs-evil
        ]
        ++ lib.optionals stdenv.isDarwin [
          ns-auto-titlebar
        ];

    override = epkgs:
      epkgs
      // {
        sideline-eglot = callPackage ./extraPackages/sideline-eglot.nix {
          inherit sources;
          inherit (epkgs) trivialBuild sideline;
        };
        intuitive-tab-line = callPackage ./extraPackages/intuitive-tab-line.nix {
          inherit sources;
          inherit (epkgs) trivialBuild;
        };
      };
  }