MarsSeed [1] filed a deletion request for e-deklaracje [2]: Abandoned Adobe AIR app for filing tax declarations for the state of Poland. Last updated in 2019. The adobe-air runtime dependency is missing. Adobe AIR itself has been discontinued for Linux since 2011. I am not sure if Poland still needs its citizens to use Adobe AIR for tax returns; if they do, using that under WINE would be their best bet on Linux. This package, on the other hand, is broken, so I recommend deleting it. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/e-deklaracje/