pheerai [1] filed a deletion request for studiolink-lv2 [2]: The studiolink LV2-Plugin has been abandoned and replaced by a standalone application for Linux. All references to this version have been removed from the homepage at https://doku.studio- link.de/plugin/installation-plugin-neu.html
[1] https://aur.archlinux.org/account/pheerai/ [2] https://aur.archlinux.org/pkgbase/studiolink-lv2/