I have a local nexus server, I'd like yarn to look through it before going online, basically prefer-offline
yarn install \
--prefer-offline \
--cache-folder C:\folder\yarn-cache \
--preferred-cache-folder C:\folder\yarn-cache \
--non-interactive \
--no-lockfile \
--registry http://server/repository/npm-group
Yarn fails to find a dependency offline then fails to go online. I don't know if that can be fixed.