did you connect the pi-bluetooth interfaces properly ? (see
snap connections pi-bluetooth, the serial port must point to the pi gadget’sbt-serialslot)
No, because I can’t install pi-bluetooth, sorry I didn’t make that clear.
Snap post-install tries to start snap.pi-bluetooth.btuart.service, which fails - looks like the same issue that this user faced as well. Since snap isn’t actually installed, I can’t connect the interface. The line I posted before is what I see with journal -xe.
note that you should not call the bluez.hciattach at all then, pi-bluetooth installs a service that does all initialization as needed on boot and bluez should just work then as desired via all bluetoothctl commands)
Yes, I’m aware of/looking forward to that 