flake: split hydra into module

hydra.nix

@@ -0,0 +1,21 @@
+{ self, lib, ... }:
+
+let
+  isBroken = _: lib.filterAttrs (n: v: v ? meta -> v.meta ? broken -> !v.meta.broken);
+
+  getTopLevel = (name: { toplevel = self.nixosConfigurations.${name}.config.system.build.toplevel; });
+in
+{
+  flake.hydraJobs = {
+    packages = lib.mapAttrs isBroken self.packages;
+    nixosConfigurations.x86_64-linux = lib.flip lib.genAttrs getTopLevel [
+      "Infini-DESKTOP"
+      "Infini-DL360"
+      "Infini-FRAMEWORK"
+      "Infini-OPTIPLEX"
+      "Infini-SERVER"
+      "hermes"
+      "hestia"
+    ];
+  };
+}