Good observation, I'm almost skeptical that Hadrian can do these...

Good observation, I'm almost skeptical that Hadrian can do these types of cuts, but it's hard to know without seeing more details of what goes on inside the truck, which is where a lot of their IP is. I would say that a cut that narrow would actually be quite difficult because the large saw would bend and would probably need to be ground off instead(looks like < 5mm height reduction), but i'm certainly no expert. Also, the concrete lintels do not require any offcuts.

I presume this is what you mean:



The vertical corners are also finished by hand, they could have been using offcuts from other blocks to fill the gaps on these corners. Automating these features I imagine would be very difficult as the gripper (and likely the boom transport too) are likely only suited to rectangular shapes



Once the Hadrian X goes into mass production, I can imagine there being different variants of the hadrian which can do different kinds of technical cuts