Black screen when trying to add phosh UI to my desktop PureOS version

I'd like to add a mobile interface on my desktop to test the mobile OS and see how close we are to convergence.

I'm using Librem mini v2 running Byzantium updated on March 18th, however I tried it with one of the older versions as well as on a virtual machine and the result was the same. Specifics: Linux 5.10.0-21-amd64 #1 (closed) SMP Debian 5.10.162-1 (2023-01-21) x86_64 GNU/Linux.

When I log out of my desktop, click on my name, I see a settings gear allowing me to pick a UI. I choose phosh and get a black screen. The only way to exit it is to press the sleep button on my keyboard, then wake the machine up which brings back the login screen, from which I can choose another interface that works (GNOME).