This is definitely cool stuff. When you want official vendor support on something like coreboot + various linux distros, I've come to expect you pay double of today's prices but get hardware from a few years ago. This looks like modern hardware and the premium is honestly manageable. Slightly above what I'd want to spend but I could see myself paying this for a great product, also because you get more than just 2 USB-A ports and more than just 1 USB-C port (that seems to be the best most other vendors have to offer)! However, what made me close the tab is the "we are not even going to give you a shipping indication other than to expect close to half a year" (knowing how these types of things like to change deadlines anyway, starting off at four months... no). If I spend thousands of euros now, I also want the product in a reasonable amount of time (say, 3 weeks including customization and shipping; 0.5-2 weeks for a stock product plus shipping).

My current laptop is still performing well enough unfortunately, but ask me again in six months when the units are in and available to be shipped, and good odds that I'll hit that purchase button!