process yarn.lock
on your unix machine, under nodejs project home, run
`yarn config get global-folder`/node_modules/@qiuzhanghua/local-yarn/gen-yarn-zip <name>
yarn global add @qiuzhanghua/local-yarn
local-yarn install <name>.yarn.lock.zip
yarn config set yarn-offline-mirror ~/tdp/repo/yarn-offline-mirror/
local-yarn get meta
yarn install --offline
...