Different company doing the tracking from your phone, they can monetise it at utilise it in other (nefarious) ways.

Also, a phone is near impossible to get by without. We shouldn’t have to accept our phones are tracking us on someone else’s behalf, but people have to be a little bit more flexible with those, whereas a “smart-rack” which can track bike journeys is more easily determined to be OTT and can be pushed back against.

Dropbear allows you to remotely unlock LUKS over SSH

I’ve not yet given it a go, but been meaning to try Ghostfolio