I don't know what kind of tech stuff you have, but since you can run ethernet (or better, fiber) to the shed, you could keep most of it locked in the house and just walk out with your laptop to your workspace each day.

Monitors are relatively cheap these days, you can get a name brand 32" 4K monitor for around $300 - if someone busts in and steals it, the door/window repair will probably cost more than the monitor.

It doesn't look any easier to break into than my house. Which is to say -- pretty easy, and yet, home break-ins are pretty uncommon.

I don't know. That's a wooden shed, while my house is brick and concrete with a common European armored door and roller shutters.

Well, in suburban Portland, where the wooden shed is, the house will be similar construction. You could very, very easily drill a hole in the exterior wall, reach through the hole, and unlock the door from the inside.

In fact, in many homes (like my own), there's a window directly adjacent to the doorknob, so you could more easily just smash the glass, reach in, and unlock the door.

And yet, it's quite uncommon for that to actually happen, and not something I spend any time worrying about.

In more urban settings or higher-crime neighborhoods, of course, people take more precautions.

There's probably lots of ways to secure it if you think about it.