Wi-Fi keeps to the strongest worthwhile radio.
- A 5 GHz radio has to be -65 dBm or better before the Show moves to it, and it takes the strongest one, instead of any 5 GHz radio however far away (a weak one meant a slow lease at boot and 20-40 Mbit/s).
- On a weak 5 GHz link with a much stronger 2.4 GHz radio nearby, it moves to 2.4 GHz.
- Until it is on a strong 5 GHz radio it keeps scanning every five minutes, so a strong one that a scan missed, or that comes back later, is still found.
Root filesystem removed: it included LineageOS's vendor files (device drivers and firmware), which aren't ours to distribute. Install v0.4.1 or later instead: devices keep their own vendor files from then on.