not trying that upgrade again

Packages/packages-lock.json

@@ -1,14 +1,5 @@
 {
   "dependencies": {
-    "com.unity.burst": {
-      "version": "1.6.0",
-      "depth": 1,
-      "source": "registry",
-      "dependencies": {
-        "com.unity.mathematics": "1.2.1"
-      },
-      "url": "https://packages.unity.com"
-    },
     "com.unity.cinemachine": {
       "version": "2.8.3",
       "depth": 0,
@@ -58,13 +49,6 @@
       "dependencies": {},
       "url": "https://packages.unity.com"
     },
-    "com.unity.mathematics": {
-      "version": "1.2.5",
-      "depth": 1,
-      "source": "registry",
-      "dependencies": {},
-      "url": "https://packages.unity.com"
-    },
     "com.unity.nuget.newtonsoft-json": {
       "version": "2.0.0",
       "depth": 1,
@@ -73,31 +57,27 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.render-pipelines.core": {
-      "version": "12.1.3",
+      "version": "10.8.1",
       "depth": 1,
-      "source": "builtin",
+      "source": "registry",
       "dependencies": {
         "com.unity.ugui": "1.0.0",
         "com.unity.modules.physics": "1.0.0",
         "com.unity.modules.jsonserialize": "1.0.0"
-      }
+      },
+      "url": "https://packages.unity.com"
     },
     "com.unity.render-pipelines.high-definition": {
-      "version": "12.1.3",
+      "version": "10.8.1",
       "depth": 0,
-      "source": "builtin",
+      "source": "registry",
       "dependencies": {
-        "com.unity.mathematics": "1.2.4",
-        "com.unity.burst": "1.6.0",
-        "com.unity.modules.video": "1.0.0",
-        "com.unity.modules.animation": "1.0.0",
-        "com.unity.modules.imageconversion": "1.0.0",
-        "com.unity.modules.terrain": "1.0.0",
-        "com.unity.render-pipelines.core": "12.1.3",
-        "com.unity.shadergraph": "12.1.3",
-        "com.unity.visualeffectgraph": "12.1.3",
-        "com.unity.render-pipelines.high-definition-config": "12.1.3"
-      }
+        "com.unity.render-pipelines.core": "10.8.1",
+        "com.unity.shadergraph": "10.8.1",
+        "com.unity.visualeffectgraph": "10.8.1",
+        "com.unity.render-pipelines.high-definition-config": "10.8.1"
+      },
+      "url": "https://packages.unity.com"
     },
     "com.unity.render-pipelines.high-definition-config": {
       "version": "file:../LocalPackages/com.unity.render-pipelines.high-definition-config",
@@ -108,7 +88,7 @@
       }
     },
     "com.unity.searcher": {
-      "version": "4.9.1",
+      "version": "4.3.2",
       "depth": 2,
       "source": "registry",
       "dependencies": {},
@@ -124,13 +104,14 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.shadergraph": {
-      "version": "12.1.3",
+      "version": "10.8.1",
       "depth": 1,
-      "source": "builtin",
+      "source": "registry",
       "dependencies": {
-        "com.unity.render-pipelines.core": "12.1.3",
-        "com.unity.searcher": "4.9.1"
-      }
+        "com.unity.render-pipelines.core": "10.8.1",
+        "com.unity.searcher": "4.3.2"
+      },
+      "url": "https://packages.unity.com"
     },
     "com.unity.test-framework": {
       "version": "1.1.29",
@@ -174,13 +155,14 @@
       }
     },
     "com.unity.visualeffectgraph": {
-      "version": "12.1.3",
+      "version": "10.8.1",
       "depth": 0,
-      "source": "builtin",
+      "source": "registry",
       "dependencies": {
-        "com.unity.shadergraph": "12.1.3",
-        "com.unity.render-pipelines.core": "12.1.3"
-      }
+        "com.unity.shadergraph": "10.8.1",
+        "com.unity.render-pipelines.core": "10.8.1"
+      },
+      "url": "https://packages.unity.com"
     },
     "com.unity.modules.ai": {
       "version": "1.0.0",