I had to change mine every few months because they keep deprecating stuff. Changed to Niri a week ago because I got dozens of config errors after an update.
The surface that takes the pressure would be very similar to a flat screwdriver. Looks like it has no taper, so it would be harder to put in place but harder for it to skip when applying torque. It's not a good design, but not horrible.
So they chose deuterium-helium 3 fusion where there is less neutron radiation. Still they need to breed helium 3 where a lot of energy is lost. Curious to see if they will reflect that in the energy production balance.
Damn, you fart with that ass?