Wondering about a good travel laptop (ie something I would feel safe if it got stolen while traveling) but functional.

Ideally it would be something where I could wipe it and build from scratch easily (maybe using Guix) and store my data in some kind of encrypted way or even on an SD card?

My main uses would be web and coding, with maybe video watching. I'd even accept needing to read email from a web based app while traveling.