feat: simplify flake-parts imports

nix/packages.nix

@@ -1,51 +0,0 @@
-{ self, inputs, ... }:
-{
-  imports = [
-    (
-      { lib, flake-parts-lib, ... }:
-      flake-parts-lib.mkTransposedPerSystemModule {
-        name = "pkgs";
-        file = ./packages.nix;
-        option = lib.mkOption {
-          type = lib.types.unspecified;
-        };
-      }
-    )
-  ];
-  flake = _:
-    let
-      inherit (self.outputs) lib;
-    in
-    {
-      packages = lib.swarselsystems.forEachLinuxSystem (pkgs: import "${self}/pkgs/flake" { inherit self lib pkgs; });
-    };
-
-  perSystem = { pkgs, system, ... }:
-    {
-      # see https://flake.parts/module-arguments.html?highlight=modulewith#persystem-module-parameters
-      _module.args.pkgs = import inputs.nixpkgs {
-        inherit system;
-        config = {
-          allowUnfree = true;
-
-          permittedInsecurePackages = [
-            # matrix
-            "olm-3.2.16"
-            # sonarr
-            "aspnetcore-runtime-wrapped-6.0.36"
-            "aspnetcore-runtime-6.0.36"
-            "dotnet-sdk-wrapped-6.0.428"
-            "dotnet-sdk-6.0.428"
-            #
-            "SDL_ttf-2.0.11"
-          ];
-        };
-        overlays = [
-          self.overlays.default
-          self.overlays.stables
-          self.overlays.modifications
-        ];
-      };
-      inherit pkgs;
-    };
-}