It's worth noting that postmarketOS and Mobian already support Librem 5, and running other distros like Arch, Fedora etc. on it by yourself is not a challenge f

It's worth noting that postmarketOS and Mobian already support Librem 5, and running other distros like Arch, Fedora etc. on it by yourself is not a challenge for someone reasonably comfortable with GNU/Linux. Running Plasma Mobile via pmOS is a no brainer, and I've almost got UBports (Ubuntu Touch) to run there already as well (it struggled with one quirk of the etnaviv driver last time I tried it, resulting in garbled display content, but it worked otherwise).