I can't access the link above, but I bought the cage that's a Garbaruk clone (packaging was even 'legit' Garbaruk).

It is very well made, but does NOT fit the AXS derailleur without a minor modification to the screw that keeps the lower cage from 'unwinding'.  You need to shave the head of the screw down a bit so it doesn't contact the clutch housing.

Overall, I wish I had gone with the KCNC SXX1 unit. And I might try it next time there's a sale on them for $10-15 off.

I think it's a non-issue to be honest. Most shocks/forks will come with a manual that gives you the basic starting points for air pressure/rebound and you can make small adjustments from there as you ride and learn the bike.  It's pretty simple.

Of course, you can get more detailed into suspension tuning if you'd like. There's websites, videos, and electronic tools dedicated to doing so. One that comes to mind is the shockwiz, which you can rent from vendors on pink bike or maybe local shops. It's really not necessary for most people I think.

I was going to ask about the nice looking battery, until reading it is self built 
Congrats! Do you have some more details about it?

I would never have dared to rivet a carbon frame.
If you have some more details, I'm interested too.

On my hardtail, the bottle cages came loose after years of use. I neglected to fix them right away and the rattling of heavy bottle/cage caused the holes to oversize.  New RivNuts couldn't be installed unless I went with a really big size, like an M8.  So I moved up an inch on the down tube, drilled two new holes, and installed the new M5 RivNuts.  I was nervous to drill carbon, but it was easy and there was very minimal splinters with a sharp bit and slow/light force.

I was also surprised how thin the downtube actually is. I would estimate it was ~1mm thick? 

He converted it using an aftermarket kit. Lexon does not make a Scott Lumen equivalent yet.

Any updates on this frame? Who's riding one?  I want to know how badly I wasted my money on the Scott.

Compelling frame.  The 2.35 tire clearance and 27.2 mm seat post are both a bit disappointing to see.  It's going to be hard to find a dropper post for this (not impossible, but not limited selection).

Possibility of a T47 BB is pretty great.

I'm 2 for 3 on Novatec 792 driver failure.  The internal ratchet/toothed ring in the hub shattered on 2 of the 3 wheelsets I built with them.  Bother were replaced with DT350 hubs without issue.  I will say they were 2014 vintage 792s so maybe the design has improved since then.