MarsSeed [1] filed a deletion request for com.seewo.easicamera [2]: EOL version from 3 years ago. Upstream stopped supporting Linux. It seems the application no longer can connect to a remote classroom. It can only play the input of the webcam. It also depends on an old insecure electron8 runtime. I don't think this is useful to keep. The latest Windows version can be used with wine. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/com.seewo.easicamera/