Add QEMU compatibility flags for ARM64 workflows

Add Docker platform flags and limit parallel jobs to reduce segfaults
in node-gyp under QEMU emulation.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <[email protected]>

Author: rathboma

.github/workflows/electron-arm64.yml

@@ -20,6 +20,10 @@ jobs:
         arch: aarch64
         distro: ubuntu22.04
 
+        # Docker options to improve QEMU compatibility
+        dockerRunArgs: |
+          --platform linux/arm64/v8
+
         # Install dependencies in the container
         install: |
           apt-get update -q -y
@@ -43,6 +47,10 @@ jobs:
           node --version
           npm --version
 
+          # Set environment variables to help with QEMU/node-gyp compatibility
+          export npm_config_jobs=1
+          export JOBS=1
+
           echo "Installing dependencies..."
           npm install
 

.github/workflows/nodejs-arm64.yml

@@ -20,6 +20,10 @@ jobs:
         arch: aarch64
         distro: ubuntu22.04
 
+        # Docker options to improve QEMU compatibility
+        dockerRunArgs: |
+          --platform linux/arm64/v8
+
         # Install dependencies in the container
         install: |
           apt-get update -q -y
@@ -39,6 +43,10 @@ jobs:
           node --version
           npm --version
 
+          # Set environment variables to help with QEMU/node-gyp compatibility
+          export npm_config_jobs=1
+          export JOBS=1
+
           echo "Installing dependencies..."
           npm install