metro-master.sh

# install gitpkg globally first

# in the metro fork run:

yarn run build-clean && yarn run build && yarn lerna run prepare-release
yarn lerna exec --bail=false gitpkg publish
yarn lerna run cleanup-release

package.json

// In your app package.json

{
  "resolutions": {
    "metro-visualizer": "janicduplessis/metro#metro-visualizer-v0.56.1-gitpkg",
    "metro": "janicduplessis/metro#metro-v0.56.1-gitpkg",
    "metro-symbolicate": "janicduplessis/metro#metro-symbolicate-v0.56.1-gitpkg",
    "metro-source-map": "janicduplessis/metro#metro-source-map-v0.56.1-gitpkg",
    "metro-resolver": "janicduplessis/metro#metro-resolver-v0.56.1-gitpkg",
    "metro-react-native-babel-transformer": "janicduplessis/metro#metro-react-native-babel-transformer-v0.56.1-gitpkg",
    "metro-react-native-babel-preset": "janicduplessis/metro#metro-react-native-babel-preset-v0.56.1-gitpkg",
    "metro-minify-uglify": "janicduplessis/metro#metro-minify-uglify-v0.56.1-gitpkg",
    "metro-minify-terser": "janicduplessis/metro#metro-minify-terser-v0.56.1-gitpkg",
    "metro-metal": "janicduplessis/metro#metro-metal-v0.56.1-gitpkg",
    "metro-memory-fs": "janicduplessis/metro#metro-memory-fs-v0.56.1-gitpkg",
    "metro-inspector-proxy": "janicduplessis/metro#metro-inspector-proxy-v0.56.1-gitpkg",
    "metro-core": "janicduplessis/metro#metro-core-v0.56.1-gitpkg",
    "metro-config": "janicduplessis/metro#metro-config-v0.56.1-gitpkg",
    "metro-cache": "janicduplessis/metro#metro-cache-v0.56.1-gitpkg",
    "metro-babel-transformer": "janicduplessis/metro#metro-babel-transformer-v0.56.1-gitpkg",
    "metro-babel-register": "janicduplessis/metro#metro-babel-register-v0.56.1-gitpkg",
    "buck-worker-tool": "janicduplessis/metro#buck-worker-tool-v0.56.1-gitpkg",
    "ob1": "janicduplessis/metro#ob1-v0.56.1-gitpkg" 
}