And as already said - your "Firefish is dead" was wrong. It's only this platform - Firefish is developed and is running on a lot of servers.
"Firefish" ist NOT a sole instance, it's a software which is running on different servers (see the list). Even if the instance firefish.social is no longer running, the software Firefish is still being developed and continues to run on many servers and therefore Firefish is not dead.
What nonsense. An instance is running here without any problems and with very frequent updates.
And I am talking about the software Firefish which is still developed. So "Firefish is dead" is very unclear information.
Firefish istn't "quite dead" - see their git - development is going on and there is every one or two week a new stable version. https://firefish.dev/firefish/firefish
Firefish is still alive - every week an update of the stable release! Why do you post here fake news?
K-9 on Android and Evolution on Ubuntu (Thunderbird is installed, too).
Site of development of Firefish