message: Stop building at local install time
  This speeds up local development and CI runs by skipping build steps by default.
  They will now only run when just before publishing.
  Related to
diff: "typings": "./lib/index.d.ts",
  "matrix_src_main": "./src/index.js",
  "scripts": {
  - "prepare": "yarn build",
  + "prepublishOnly": "yarn build",
  "i18n": "matrix-gen-i18n",
  "prunei18n": "matrix-prune-i18n",
  "diff-i18n": "cp src/i18n/strings/en_EN.json src/i18n/strings/en_EN_orig.json && ./scripts/gen-i18n.js && node scripts/compare-file.js src/i18n/strings/en_EN_orig.json src/i18n/strings/en_EN.json",
  