Another thing I have learned on the #LightningHackdayMUC (now continued at home): using a powered USB hub allows to avoid power cycling the HDD every time the #AtomicPi #RaspiBlitz needs to be restarted.
Also see my simplest 1€ take on the power supply adapter.

Some practical experience from living on Lightning for a weekend on #LightningHackdayMUC:
The @[email protected] Eclair seemed to be the most popular and usable wallet. A fully functional Lightning node on my phone, connecting to my own Electrs with an encrypted connection across borders.