archmaut [1] filed a deletion request for yarn-nightly [2]: https://nodejs.org/api/corepack.html Corepack is the best way to install and automatically manage node.js package managers such as yarn. Also, this package is out-of-date and barely used. [1] https://aur.archlinux.org/account/archmaut/ [2] https://aur.archlinux.org/pkgbase/yarn-nightly/