The Instructions & Downloads (alpha) are now on /e/ OS Page
https://doc.e.foundation/devices/tetris
What currently doesnt work yet:
-Fingerprint
-NFC (NO, my bad, the phone doesnt have NFC xD)
Those would be really nice to have.
-Haptics (less important in my eyes, id turn it off anyways xD )
Besides that i havent noticed anything.
Im daily driving it now. (But ofc have a backup device)
Not exactly sure yet, if bootloader relocking works, im afraid to try.