Questions for the Chinertown Custom Ti Veterans:
The 48T Chainring vs. 40mm Tire Dilemma: A 48T ring is massive for a gravel frame. On 24mm internal rims, 40mm tires are going to stretch out closer to 41-42mm. For those who have done custom Ti builds with Chinese factories, what specific chainstay yoke design or dimpling instructions should I write into the order notes to ensure the chainring doesn't chew into the titanium stay while maintaining tire clearance?

You shouldn't need to do anything other than tell them the specs you want. They will tell you if it's possible or not, but I really doubt that combination will be an issue.

My suggestion is to get the process started, the back and forth can take a long time.

For most cranksets, the specified chainline is in between the rings in a 2x setup. That means if you mount a 1x chainring in the big ring position, it needs to be offset 3mm to get intended chainline.

Whether that chainline is what you need is a different question. It's possible that you need a 0 offset for the chainring to clear the chainstays, but not necessarily.

Does anyone know why the 32"er is ~€200 extra over the 29" offerings?

Main difference I see is the in-frame storage, but it's also well heavier, much more than the wheel size would account for.

Did anyone recently order the frame and receive one? This pre-order process started a while ago, was anyone supplied already?
Curious what a realistic delivery time might be.

Because there is way less competition in the 32'er space? They can't charge 200€ extra on 29'ers because there's a million identical frames people can buy instead.

Anyway, the chances this frame can clear any reasonable amount of mud or debris with a 55mm tire at the rear is nil, with that RC.  It'll be bad with a 50mm.

A Lauf Seigla has 425mm chainstays. As does an Ari Shafer in the smallest size. I guess you can argue those bikes can't clear a 55 with sufficient mud, but then you're working with a different definition of tire clearance than everyone else.

I'll re-test at some point.

iirc someone said they removed the real time offset reporting in their app? If they have, that's a step backwards. Also raises questions as to why they'd do that as it was extremely useful in debugging issues.

Yep, it no longer shows the offset. Very annoying.

Can also vouch for the Ahyka bottles, they are easy to get in and out and the cages hold the bottles really well. I've run them in fast gravel races without issues.

Note also that bottles+cages are usually twice the price of the bottles alone - buying extra bottles is relatively cheap.

You are wrong ;-).

We just thought it would be nice to build up some excitement. So we’ll try to release new information every week.

That's great to hear! Looking forward to it.

I read further up that there have been some issues with this, so I wanted to ask: are there any experiences so far with the Magene PES power meter and chainrings larger than 40T? I’d like to run a 46T, but at least 44T.

1) No issues with the PES power meter, other than the fact that it is a road crankset so you have to space your crank or chainring further out in order for it to fit.
2) For chainring clearance, the chainstay design means that you have to space the chainring out quite far to clear a bigger ring. I have a 50T at somewhere around 50.5mm chainline, but it looks like going for a smaller ring wouldn't really allow me to reduce the chainline at all, until we get down to maybe a 44T.

Also, does the frame work well with a mechanical drivetrain? I’d like to keep using my GRX 1x12.

Especially for 1x, no issues at all.

And is there anything else to watch out for when ordering — any headset, spacers or other parts you need to mention, di2 holder? Or is it better not to order from there at all and go somewhere else(for example headset)?

DI2 holder yes, mine came with headset parts but not a full headset - note that they now also write on the site "Package included: Frame+fork+seatpost+bearings+thru axles+hanger".
I believe this used to say "headset" instead of bearings.