Starting from version 2023.66594-9, TeX Live packages have been reorganized to mirror upstream collections. Even though the new `texlive-basic` replaces the old `texlive-core`, many of the texlive-core contents (including language specific files) are now split between different packages. To find out which Arch package contains a specific CTAN package, you can use the `tlmgr` utility, eg. $ tlmgr info euler | grep collection collection: collection-latexrecommended which means the euler CTAN package is contained in `texlive-latexrecommended`. You may also use `pacman -F` to query for specific files. A new metapackage texlive-meta is available to install all subpackages (except for language specific ones), and the new texlive-doc package provides the full documentation for offline use. URL: https://archlinux.org/news/tex-live-package-reorganization/