Add advanced monitoring and release infrastructure

scripts/build-dmg.sh

@@ -4,6 +4,7 @@ set -euo pipefail
 PROJECT_DIR="${0:A:h:h}"
 APP_PATH="$PROJECT_DIR/dist/puter.app"
 DMG_PATH="$PROJECT_DIR/dist/puter-macOS.dmg"
+SIGN_IDENTITY="${PUTER_SIGN_IDENTITY:--}"
 STAGING_DIR="$(mktemp -d /tmp/puter-dmg.XXXXXX)"
 
 cleanup() {
@@ -28,4 +29,9 @@ hdiutil create \
     -ov \
     "$DMG_PATH"
 
+if [[ "$SIGN_IDENTITY" != "-" ]]; then
+    codesign --force --timestamp --sign "$SIGN_IDENTITY" "$DMG_PATH"
+    codesign --verify --strict "$DMG_PATH"
+fi
+
 print "Built $DMG_PATH"