[solardev]

These are great, light u-lock style frame locks made of titanium: https://tigrlock.com/

Your wheels and components might still get stolen, but not much is really going to stop that. You can add a cable lock if you really want to but they're easy to cut through.

Bike registration (https://bikeindex.org/) might help in some circumstances.

But really, insurance is the thing that will cover you. Many renters'/homeowners' insurances will cover theft of bikes too, even when you're away from home, so you don't necessarily need supplemental bike insurance.

The thing about the trackers is that they're for after-the-fact recovery, not deterrent (especially if they're stealth). It's just going to get parted out, so if you're lucky you might recover the frame and not much else.