Axolotl librem 5

[Skalman]

I did not try it myself yet, but according to Kyle there is (or at least there was at some point) a build for mobian that could be used on the Librem 5:

Building and running Signal Desktop on the Librem 5

I’ve found the axolotl arm64 build for mobian to work reasonably well for my own Signal needs. The QT UI isn’t ideal and has some quirks (in particular with different QT apps fighting for keyboard input sometimes) but it does work and does fit.