CalyxOS (is coming to) is here for FP4!

The system does it on both laptops and both are up to date as you know. So it doesn’t work on two systems, so it can’t be because of me. It might not be on linux or any flash bar
root@t510:/home/carrabelloy/Downloads/FP4-calyxos/FP4-sp2a.220505.002# sudo ./flash-all.sh
fastboot too old; please download the latest version at SDK Platform Tools release notes  |  Android Developers