make devshell work on aarch64-linux

flake.nix

@@ -64,14 +64,18 @@
       inherit (clan) clanInternals nixosConfigurations;
 
       devShells =
+        nixpkgs.lib.genAttrs
+          [
+            "x86_64-linux"
+            "aarch64-linux"
+          ]
+          (
+            system:
             let
-          system = "x86_64-linux";
+              pkgs = nixpkgs.legacyPackages.${system};
-          pkgs = import nixpkgs {
-            inherit system;
-          };
             in
             {
-          "${system}".default = pkgs.mkShell {
+              default = pkgs.mkShell {
                 packages = [
                   inputs.agenix.packages.${system}.default
                   clan-core.packages.${system}.clan-cli
@@ -86,7 +90,8 @@
                   exec zsh
                 '';
               };
-        };
+            }
+          );
     };
 
   inputs = {