BUGS
Xsnow needs a complete rewrite: the code is a mess. Xsnow stresses the Xserver too much. Xsnow generates race conditions, e.g.: sometimes fallen snow is not removed when it should be. Xsnow does not run in Wayland. Remnants of fluffy snow can persist after removing the fallen snow. These will gradually disappear, so no big deal.
Ve Waylandu takove veci musi byt implementovane jako rozsireni do kompozitoru. A samozrejme uz to nekdo udelal ;)
https://extensions.gnome.org/extension/3921/snowy/
https://extensions.gnome.org/extension/1547/let-it-snow/
atd.