feat: added control for multiple cores

.env.example

@@ -18,3 +18,7 @@ AUR_MAINTAINER_EMAIL=your@email.com
 
 # How often to poll the AUR for updates, in seconds (default: 3600 = 1 hour)
 POLL_INTERVAL_SECONDS=3600
+
+# Number of CPU cores to use for compilation (default: all available cores)
+# Reduce this if you want to leave headroom for other processes on the server
+# NPROC=4

docker-compose.yml

@@ -8,6 +8,9 @@ services:
     restart: unless-stopped
     env_file:
       - .env
+    # By default Docker exposes all host CPUs to the container.
+    # You can cap it here or set NPROC in .env to limit parallelism at the build level.
+    # cpus: '4'
     volumes:
       # Entire project mounted so the container can read/write state, artifacts,
       # and the webkit2gtk / webkit2gtk-bin git repos.

scripts/build.sh

@@ -31,6 +31,11 @@ find . -maxdepth 1 -name '*.pkg.tar.zst' -delete
 find . -maxdepth 1 -name '*.pkg.tar.zst.sig' -delete
 
 # Build
+# Use all available cores. MAKEFLAGS is respected by makepkg and passed
+# through to cmake/ninja. NPROC can be overridden via the environment.
+nproc="${NPROC:-$(nproc)}"
+export MAKEFLAGS="-j${nproc}"
+log "Building with ${nproc} cores"
 log "Running makepkg in ${SRC_DIR}"
 # --syncdeps  : install missing makedepends automatically
 # --noconfirm : do not ask for confirmations