Expose packages for arm and riscv64 in flake

flake.nix

@@ -5,19 +5,14 @@
 
   outputs = { self, nixpkgs, ... }:
 let
+  forAllSystems = nixpkgs.lib.genAttrs [ "x86_64-linux" "aarch64-linux" "armv6l-linux" "armv7l-linux" "i686-linux" "riscv64-linux" ];
+
   mkConf = name: nixpkgs.lib.nixosSystem {
     system = "x86_64-linux";
     specialArgs = { inherit nixpkgs; theFlake = self; };
     modules = [ "${self.outPath}/m/${name}/configuration.nix" ];
   };
-  # For now we only support x86
-  system = "x86_64-linux";
-  pkgs = import nixpkgs {
-    inherit system;
-    overlays = [ self.overlays.default ];
-    config.allowUnfree = true;
-  };
-in
+  in
   {
     nixosConfigurations = {
       hut     = mkConf "hut";
@@ -38,9 +33,15 @@ in
     overlays.default = self.bscOverlay;
 
     # full nixpkgs with our overlay applied
-    legacyPackages.${system} = pkgs;
+    legacyPackages = forAllSystems (system:
+      import nixpkgs {
+        inherit system;
+        overlays = [ self.overlays.default ];
+        config.allowUnfree = true;
+      }
+    );
 
-    hydraJobs = self.legacyPackages.${system}.bsc.hydraJobs;
+    hydraJobs = self.legacyPackages.x86_64-linux.bsc.hydraJobs;
 
     # propagate nixpkgs lib, so we can do bscpkgs.lib
     lib = nixpkgs.lib // {