refactor: massive refactor using flake-parts; use typos-cli and

keep-sorted

overlays/default.nix

@@ -1,69 +1,27 @@
 {
   inputs,
   lib,
+  ...
 }:
+let
+  mkPkgs = type: final: _prev: {
+    ${type} = import inputs."nixpkgs-${type}" {
+      system = final.stdenv.hostPlatform.system;
+      config.allowUnfree = true;
+    };
+  };
+in
 {
-  additions =
-    final: prev:
-    lib.haumea.load {
-      src = ../pkgs;
-      loader = [
-        {
-          matches = str: builtins.match ".*\\.nix" str != null;
-          loader = _: path: final.callPackage path { };
-        }
-      ];
-      transformer = lib.haumea.transformers.liftDefault;
-    };
-
-  modifications =
-    final: prev:
-    lib.infuse prev {
-      cage.__output.patches.__append = [ ./cage-specify-output-name.patch ];
-      matrix-synapse.__assign = final.stable.matrix-synapse;
-      bottles.__input.removeWarningPopup.__assign = true;
-
-      sing-box.__assign = prev.sing-box.overrideAttrs (finalAttrs: {
-        version = "1.11.14";
-        src = final.fetchFromGitHub {
-          owner = "qjebbs";
-          repo = "sing-box";
-          # due to faulty tag generation
-          tag = "v${finalAttrs.version}+rev";
-          hash = "sha256-/p2PBTeeRJW3iq/BXJlw/Qn92Nrnw9fmUn5yNGl/o34=";
-        };
-        vendorHash = "sha256-C2HCNOzP1Jg3vz2i9uPmM1wC7Sw2YNt7MdYn939cu1Y=";
-        postInstall = "";
-      });
-    };
-
-  # this allows us to access specific version of nixpkgs
-  # by `pkgs.unstable`, `pkgs.stable` and `pkgs.master`
-  unstable-packages = final: _prev: {
-    unstable = import inputs.nixpkgs-unstable {
-      system = final.stdenv.hostPlatform.system;
-      config.allowUnfree = true;
-    };
-  };
-
-  stable-packages = final: _prev: {
-    stable = import inputs.nixpkgs-stable {
-      system = final.stdenv.hostPlatform.system;
-      config.allowUnfree = true;
-    };
-  };
-
-  master-packages = final: _prev: {
-    master = import inputs.nixpkgs-master {
-      system = final.stdenv.hostPlatform.system;
-      config.allowUnfree = true;
-    };
-  };
-
-  working-packages = final: _prev: {
-    working = import inputs.nixpkgs-working {
-      system = final.stdenv.hostPlatform.system;
-      config.allowUnfree = true;
-    };
-  };
+  flake.overlays = {
+    modifications =
+      final: prev:
+      lib.infuse prev {
+        cage.__output.patches.__append = [ ./cage-specify-output-name.patch ];
+        bottles.__input.removeWarningPopup.__assign = true;
+      };
+  }
+  //
+    # this allows us to access specific version of nixpkgs
+    # by `pkgs.unstable`, `pkgs.stable` and `pkgs.master`
+    lib.genAttrs [ "stable" "unstable" "master" ] mkPkgs;
 }