Make checks a build step

checks.nix

@@ -2,6 +2,7 @@
   lib,
   system,
   top,
+  writeShellApplication,
   ...
 }:
 
@@ -9,8 +10,18 @@ let
   meta = import ./hosts/metadata.nix;
 in
 # Pulls all hosts down to be a check
-(builtins.mapAttrs (_n: v: v.config.system.build.toplevel) (
-  lib.filterAttrs (n: _v: builtins.any (a: a == system) meta.${n}.arch) top.self.nixosConfigurations
-))
+(builtins.mapAttrs
+  (
+    _n: v:
+    writeShellApplication {
+      name = "build-${n}";
+      runtimeInputs = [ ];
+      text = ''
+        nix build ".#${v.config.system.build.toplevel}"
+      '';
+    }
+  )
+  (lib.filterAttrs (n: _v: builtins.any (a: a == system) meta.${n}.arch) top.self.nixosConfigurations)
+)
 # Adds all packages as a check
 // (top.self.packages.${system})