Sayboard on fdroid is an option as well https://f-droid.org/packages/com.elishaazaria.sayboard/

Bucky was right once again with his theory of “Ephemeralization” https://dbpedia.org/page/Ephemeralization … The only reason we’re concerned with these companies employing Devs and spending Billions to do what small teams of FOSS are able to achieve is simply a bad economic system that requires “make work” or Bullshit jobs for wages to feed the parasite class, instead of us living like the Jetson’s. Time to move one!