Recently installed CalyxOS on my FP4. Thought I would give a wee run-down of how it went.
I installed it on NixOS, so I was glad for the instructions provided, the only bit that wasn’t clear to me was that shell.nix was just a text file one creates.
The installation process was super simple with their flashing script they have.
It was not super clear, after stage 5 and 6 that one should remove the USB-cable and reboot into fastboot every time it stalls out, which is fairly frequent to begin with.
Then it runs super well by itself and within a short period of time, you’re rebooting into Calyx.
Starting was pretty good with many apps pre-optioned for install/removal. Once you’re in, it feels like any degoogled device.
Good setup, I think!