diff --git a/backend/python/chatterbox/install.sh b/backend/python/chatterbox/install.sh
index 8f607485b..04d76fd5b 100755
--- a/backend/python/chatterbox/install.sh
+++ b/backend/python/chatterbox/install.sh
@@ -17,4 +17,9 @@ if [ "x${BUILD_PROFILE}" == "xintel" ]; then
 fi
 EXTRA_PIP_INSTALL_FLAGS+=" --no-build-isolation"
 
+if [ "x${BUILD_PROFILE}" == "xl4t12" ]; then
+    USE_PIP=true
+fi
+
+
 installRequirements
diff --git a/backend/python/chatterbox/requirements-install.txt b/backend/python/chatterbox/requirements-install.txt
new file mode 100644
index 000000000..a9ffcac6a
--- /dev/null
+++ b/backend/python/chatterbox/requirements-install.txt
@@ -0,0 +1,5 @@
+# Build dependencies needed for packages installed from source (e.g., git dependencies)
+# When using --no-build-isolation, these must be installed in the venv first
+wheel
+setuptools
+packaging
diff --git a/backend/python/diffusers/install.sh b/backend/python/diffusers/install.sh
index 2e437de08..83703b1b2 100755
--- a/backend/python/diffusers/install.sh
+++ b/backend/python/diffusers/install.sh
@@ -16,6 +16,10 @@ if [ "x${BUILD_PROFILE}" == "xintel" ]; then
     EXTRA_PIP_INSTALL_FLAGS+=" --upgrade --index-strategy=unsafe-first-match"
 fi
 
+if [ "x${BUILD_PROFILE}" == "xl4t12" ]; then
+    USE_PIP=true
+fi
+
 # Use python 3.12 for l4t
 if [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
   PYTHON_VERSION="3.12"
diff --git a/backend/python/kokoro/install.sh b/backend/python/kokoro/install.sh
index 32befa8e6..d3b88ea68 100755
--- a/backend/python/kokoro/install.sh
+++ b/backend/python/kokoro/install.sh
@@ -16,4 +16,8 @@ if [ "x${BUILD_PROFILE}" == "xintel" ]; then
     EXTRA_PIP_INSTALL_FLAGS+=" --upgrade --index-strategy=unsafe-first-match"
 fi
 
+if [ "x${BUILD_PROFILE}" == "xl4t12" ]; then
+    USE_PIP=true
+fi
+
 installRequirements
diff --git a/backend/python/neutts/install.sh b/backend/python/neutts/install.sh
index 886f931ee..381788605 100755
--- a/backend/python/neutts/install.sh
+++ b/backend/python/neutts/install.sh
@@ -26,6 +26,12 @@ fi
 
 EXTRA_PIP_INSTALL_FLAGS+=" --no-build-isolation"
 
+
+if [ "x${BUILD_PROFILE}" == "xl4t12" ]; then
+    USE_PIP=true
+fi
+
+
 git clone https://github.com/neuphonic/neutts-air neutts-air
 
 cp -rfv neutts-air/neuttsair ./
diff --git a/backend/python/vibevoice/install.sh b/backend/python/vibevoice/install.sh
index 89d9b715e..3f669c6fe 100755
--- a/backend/python/vibevoice/install.sh
+++ b/backend/python/vibevoice/install.sh
@@ -23,6 +23,10 @@ if [ "x${BUILD_PROFILE}" == "xl4t13" ]; then
   PY_STANDALONE_TAG="20251120"
 fi
 
+if [ "x${BUILD_PROFILE}" == "xl4t12" ]; then
+    USE_PIP=true
+fi
+
 installRequirements
 
 git clone https://github.com/microsoft/VibeVoice.git