MarsSeed [1] filed a deletion request for arduide-git [2]: Discontinued Qt4 based IDE for Arduino development; upstream code not touched since 2016. [a] Package is broken due to missing Qt4 based qscintilla dependency. As per maintainer's last comment from 2020: " Actually, everybody should use Code + PlatformIO instead of this very out of date, abandonned IDE. " [a]: https://github.com/mupuf/arduide [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/arduide-git/