fix: bump flake for github builder

flake.lock

@@ -97,14 +97,18 @@
         ]
       },
       "locked": {
-        "lastModified": 1749576434,
-        "narHash": "sha256-wSdtZih2fMQ3ne/U7OKIhmP43zCIuRBhJ5zMMz747u0=",
-        "path": "/home/ubuntu/Projects/kernel-builder",
-        "type": "path"
+        "lastModified": 1749577327,
+        "narHash": "sha256-Muo9lpVIlgasP56avMht54WlCO++ILy1O9Fxto9xl0Q=",
+        "owner": "huggingface",
+        "repo": "kernel-builder",
+        "rev": "73d15b5e6f1797e3a9cfef82ed619f3cb9de87f6",
+        "type": "github"
       },
       "original": {
-        "path": "/home/ubuntu/Projects/kernel-builder",
-        "type": "path"
+        "owner": "huggingface",
+        "ref": "support-custom-python-libraries-in-dev-shell",
+        "repo": "kernel-builder",
+        "type": "github"
       }
     },
     "nixpkgs": {

flake.nix

@@ -2,8 +2,7 @@
   description = "Flake for megablocks_moe kernel";
 
   inputs = {
-    kernel-builder.url = "path:/home/ubuntu/Projects/kernel-builder";
-    # kernel-builder.url = "github:huggingface/kernel-builder/v0.4.0";
+    kernel-builder.url = "github:huggingface/kernel-builder/support-custom-python-libraries-in-dev-shell";
   };
 
   outputs =