packages/catalog: expose simulacrum checks differently

packages/catalog/checks.nix

@@ -1,10 +1,19 @@
 { lib, ... }:
 
 {
-  perSystem = { config, ... }: {
-    catalog.depot = {
-      checks = lib.mapAttrs (name: check: {
-        description = "NixOS Test: ${name}";
+  perSystem = { config, pkgs, ... }: {
+    catalog = lib.mkMerge (lib.mapAttrsToList (name': check: let
+      simulacrum = lib.hasPrefix "simulacrum-" name';
+      name = lib.removePrefix "simulacrum-" name';
+      baseAttrPath = if simulacrum then
+        [ "cluster" "simulacrum" ]
+      else
+        [ "depot" "checks" ];
+    in lib.setAttrByPath (baseAttrPath ++ [ name ]) {
+      description = if simulacrum then
+        "Simulacrum Test: ${name}"
+      else
+        "NixOS Test: ${name}";
       actions = {
         build = {
           description = "Build this check.";
@@ -12,10 +21,12 @@
         };
         runInteractive = {
           description = "Run interactive driver.";
-            command = lib.getExe check.driverInteractive;
+          command = if simulacrum then
+            "${pkgs.bubblewrap}/bin/bwrap --unshare-all --bind / / --dev-bind /dev /dev ${lib.getExe check.driverInteractive}"
+          else
+            lib.getExe check.driverInteractive;
         };
       };
-      }) config.checks;
-    };
+    }) config.checks);
   };
 }