Simplification

flake.lock

@@ -18,23 +18,7 @@
     },
     "root": {
       "inputs": {
-        "nixpkgs": "nixpkgs",
-        "systems": "systems"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
+        "nixpkgs": "nixpkgs"
       }
     }
   },

flake.nix

@@ -3,18 +3,22 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    systems.url = "github:nix-systems/default";
   };
 
   outputs = inputs @ {
     self,
       nixpkgs,
-      systems,
       ...
   }: let
     inherit (nixpkgs) lib;
-    eachSystem = lib.genAttrs (import systems);
-    pkgsFor = eachSystem (system:
+    forAllSystems = lib.genAttrs [
+      "aarch64-linux"
+      "i686-linux"
+      "x86_64-linux"
+      "aarch64-darwin"
+      "x86_64-darwin"
+    ];
+    pkgsFor = forAllSystems (system:
       import nixpkgs {
         localSystem.system = system;
         overlays = with self.overlays; [chicken tcc-mob];
@@ -23,29 +27,24 @@
     overlays = {
       default = self.overlays.chicken;
 
-      tcc-mob = final: prev: {
+      chicken = final: prev: {
         tcc-mob = final.callPackage ./nix/tinycc.nix {
           stdenv = final.gcc13Stdenv;
         };
-      };
-
-      chicken = final: prev: {
         chicken = final.callPackage ./nix/chicken.nix {
           stdenv = final.gcc13Stdenv;
         };
       };
     };
 
-    devShells = eachSystem (system: {
+    devShells = forAllSystems (system: {
       default = let
         pkgs = import nixpkgs {
-          overlays = [ self.overlays.tcc-mob self.overlays.chicken ];
+          overlays = [ self.overlays.chicken ];
         };
       in pkgs.mkShell {
         packages = with pkgs; [ tcc-mob chicken pkg-config ]
                               ++ (with pkgs.chickenPackages_5.chickenEggs; [
-                                lsp-server
-                                transducers
                               ]);
         shellHook = ''
           export CC=${pkgs.tcc-mob}/bin/tcc