Install /e/ on a Fairphone FP4 - “FP4” (beta)

[hirnsushi]

@jme

if you have the same issue in Linux, make sure to make yourself su during the installation, as there are a lot of fastboot commands and it would be a pain to add sudo before all of them

You can also install android-udev-rules to avoid running fastboot as root.
More work now, but less work in the future