diff --git a/.devcontainer/onCreate-meson.sh b/.devcontainer/onCreate-meson.sh
index 1a1c27735d2..ea5cc42140c 100755
--- a/.devcontainer/onCreate-meson.sh
+++ b/.devcontainer/onCreate-meson.sh
@@ -2,7 +2,7 @@
 
 SYSTEM=$(build/bin/sage-guess-package-system)
 
-if [ "$SYSTEM" = "fedora" ]; then
+if [ "$SYSTEM" = "fedora" ] && [ -f /etc/fedora-release ]; then
     # Need to use --setopt=tsflags="" to avoid errors with gphelp
     dnf5 install -y pari-gp --setopt=tsflags=""
 
@@ -16,7 +16,8 @@ eval $(build/bin/sage-print-system-package-command $SYSTEM --yes --ignore-missin
 
 # Disable build isolation following the advice of https://mesonbuild.com/meson-python/how-to-guides/editable-installs.html#build-dependencies
 # Install build dependencies manually as workaround for https://github.com/astral-sh/uv/issues/1516
-uv venv
+uv venv --clear
+. $UV_PROJECT_ENVIRONMENT/bin/activate # https://github.com/astral-sh/uv/issues/14022
 uv pip install \
     meson-python \
     "cypari2 >=2.2.1" \
@@ -27,4 +28,4 @@ uv pip install \
     "numpy >=1.25" \
     jinja2 \
     setuptools
-uv sync --frozen --inexact --no-build-isolation --config-settings=builddir=build/build-$SYSTEM
+uv sync --frozen --inexact --no-build-isolation -v --config-settings=builddir=build/build-$SYSTEM-$devcontainerId
diff --git a/.devcontainer/portability-archlinux/devcontainer.json b/.devcontainer/portability-archlinux/devcontainer.json
index f076a199e67..548cbb92274 100644
--- a/.devcontainer/portability-archlinux/devcontainer.json
+++ b/.devcontainer/portability-archlinux/devcontainer.json
@@ -13,6 +13,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [
diff --git a/.devcontainer/portability-fedora-41/devcontainer.json b/.devcontainer/portability-fedora-41/devcontainer.json
index cacc679fbbc..b166ba213c1 100644
--- a/.devcontainer/portability-fedora-41/devcontainer.json
+++ b/.devcontainer/portability-fedora-41/devcontainer.json
@@ -10,6 +10,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [
diff --git a/.devcontainer/portability-fedora-42/devcontainer.json b/.devcontainer/portability-fedora-42/devcontainer.json
index e433f7016de..a61c40adecd 100644
--- a/.devcontainer/portability-fedora-42/devcontainer.json
+++ b/.devcontainer/portability-fedora-42/devcontainer.json
@@ -10,6 +10,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [
diff --git a/.devcontainer/portability-ubuntu-2204/devcontainer.json b/.devcontainer/portability-ubuntu-2204/devcontainer.json
index d393b1630b8..602cc83bd28 100644
--- a/.devcontainer/portability-ubuntu-2204/devcontainer.json
+++ b/.devcontainer/portability-ubuntu-2204/devcontainer.json
@@ -10,6 +10,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [
diff --git a/.devcontainer/portability-ubuntu-2404/devcontainer.json b/.devcontainer/portability-ubuntu-2404/devcontainer.json
index e5e7f58127c..7aee083cd88 100644
--- a/.devcontainer/portability-ubuntu-2404/devcontainer.json
+++ b/.devcontainer/portability-ubuntu-2404/devcontainer.json
@@ -10,6 +10,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [
diff --git a/.devcontainer/portability-ubuntu-2504/devcontainer.json b/.devcontainer/portability-ubuntu-2504/devcontainer.json
index e487931fe7e..01f7baeed4a 100644
--- a/.devcontainer/portability-ubuntu-2504/devcontainer.json
+++ b/.devcontainer/portability-ubuntu-2504/devcontainer.json
@@ -10,6 +10,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [
diff --git a/.devcontainer/portability-void/devcontainer.json b/.devcontainer/portability-void/devcontainer.json
index 3024093fcd8..47a24fb5985 100644
--- a/.devcontainer/portability-void/devcontainer.json
+++ b/.devcontainer/portability-void/devcontainer.json
@@ -14,6 +14,10 @@
 			"version": "latest"
 		}
     },
+    "containerEnv": {
+        "devcontainerId": "${devcontainerId}",
+        "UV_PROJECT_ENVIRONMENT": ".venv-${devcontainerId}" 
+    },
     "customizations": {
         "vscode": {
             "extensions": [