> $20 would increase the HW cost of many typical community-networks (CN) deployments significantly.

This seems unlikely. In most cases, $20 is notably less than the cost of a single node.

> Plus requiering more knowledge, maintenence, and power supply for sometimes solar-powered setups... no USB.

If that's a concern, then put the GPS on nodes where those constraints aren't a problem. You only need GPS on a few nodes (or one node if you don't care about redundancy). Most nodes will get by just fine with just plain NTP, and can happily fetch their time from the GPS nodes, or from other non-GPS nodes with a correct time sync.

> It is really NOT as simple as it sounds to plug a $20 GPS !!!

It's not particularly complicated either. The actual setup of the devices isn't particularly difficult, and you're already touching these nodes to set up wireguard on them, so "I have to touch the config" isn't a barrier in this case.

Cheers,
Steve
--

Cheers,

Steve Gilberd
Erayd LTD · Consultant
Phone: +64 4 974-4229 · Mob: +64 27 565-3237
PO Box 10019, The Terrace, Wellington 6143, NZ