clear nix linker flags

Author: abueide

.flox/env/manifest.lock

@@ -33,6 +33,24 @@ jobs:
             device-target: "ios-latest"
     steps:
       - uses: actions/checkout@v4
+      - name: Yarn cache (E2E)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/yarn
+            examples/E2E/.yarn/cache
+          key: e2e-yarn-${{ runner.os }}-${{ hashFiles('examples/E2E/yarn.lock') }}
+          restore-keys: |
+            e2e-yarn-${{ runner.os }}-
+      - name: CocoaPods cache (E2E)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/Library/Caches/CocoaPods
+            examples/E2E/ios/Pods
+          key: e2e-pods-${{ runner.os }}-${{ hashFiles('examples/E2E/ios/Podfile.lock') }}
+          restore-keys: |
+            e2e-pods-${{ runner.os }}-
       - name: Aggressive disk cleanup (macOS)
         run: |
           sudo rm -rf /usr/share/dotnet

.github/workflows/ci-e2e-nightly.yml

@@ -36,6 +36,24 @@ jobs:
             device-target: "ios-latest"
     steps:
       - uses: actions/checkout@v4
+      - name: Yarn cache (E2E)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/yarn
+            examples/E2E/.yarn/cache
+          key: e2e-yarn-${{ runner.os }}-${{ hashFiles('examples/E2E/yarn.lock') }}
+          restore-keys: |
+            e2e-yarn-${{ runner.os }}-
+      - name: CocoaPods cache (E2E)
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/Library/Caches/CocoaPods
+            examples/E2E/ios/Pods
+          key: e2e-pods-${{ runner.os }}-${{ hashFiles('examples/E2E/ios/Podfile.lock') }}
+          restore-keys: |
+            e2e-pods-${{ runner.os }}-
       - name: Aggressive disk cleanup (macOS)
         run: |
           sudo rm -rf /usr/share/dotnet

.github/workflows/ci-e2e-optional.yml

@@ -13,6 +13,10 @@ IOS_SIM_LATEST_DEVICE = "iPhone 17"
 [hook]
  on-activate = '''
   set -euo pipefail
+
+  # Prefer system toolchains for iOS builds; avoid Nix C toolchain flags leaking into xcodebuild.
+  unset NIX_CFLAGS_COMPILE NIX_LDFLAGS NIX_CFLAGS_LINK LIBRARY_PATH
+
   project_root="${PROJECT_ROOT:-$(git rev-parse --show-toplevel 2>/dev/null || pwd)}"
   if [ ! -d "$project_root/env/ios" ]; then
     project_root="$(cd "$(dirname "${BASH_SOURCE[0]:-$0}")/../../../../.." && pwd)"

env/ios/.flox/env/manifest.lock

@@ -9,9 +9,9 @@
     "lint": "eslint .",
     "start": "react-native start",
     "build:android": "yarn detox build --configuration android.emu.release",
-    "test:android": "yarn detox test --configuration android.emu.release",
+    "test:android": "yarn detox test --configuration android.emu.release --reuse",
     "build:ios": "yarn detox build --configuration ios.sim.release",
-    "test:ios": "yarn detox test --configuration ios.sim.release",
+    "test:ios": "yarn detox test --configuration ios.sim.release --reuse",
     "start:e2e": "yarn start",
     "android:deeplink": "adb shell am start -a android.intent.action.VIEW -d \"segmentreactnative://hello\" com.example.segmentanalyticsreactnative",
     "ios:deeplink": "xcrun simctl openurl booted segmentreactnative://hello",