Remove explicit chumpy from runtime install; let hmr2 pull it as transitive dep

app.py

@@ -29,8 +29,10 @@ from pathlib import Path
 _RUNTIME_PKG_MARKER = Path("/tmp/.runtime_pkgs_installed")
 
 # 1. Packages requiring --no-build-isolation (chumpy transitive dep via hmr2/skel)
+#    Do NOT list chumpy explicitly — hmr2 declares it as a direct-ref dep; pip
+#    would see two conflicting direct refs. Let hmr2 pull chumpy as a transitive
+#    dep; --no-build-isolation propagates to all deps in the install invocation.
 _NO_ISOLATION_PACKAGES = [
-    "chumpy @ git+https://github.com/mattloper/chumpy.git@580566eafc9ac68b2614b64d6f7aaa84eebb70da",
     "hmr2 @ git+https://github.com/shubham-goel/4D-Humans.git@efe18deff163b29dff87ddbd575fa29b716a356c",
     "skel @ git+https://github.com/MarilynKeller/SKEL.git@c32cf16581295bff19399379efe5b776d707cd95",
 ]