Will this impact the Mono Gateway[0]?
[0] https://mono.si/
It's hard to tell considering there is absolutely no company/ownership information on the site, but a .si (Slovenia) domain coupled with EUR being an accepted currency has me thinking they're Europe-based, and therefore foreign-made.
... at the same time, I don't think I'd send $100 to a site with no contact/ownership/company info to begin with.
It looks like it probably won't matter. The site says you can preorder a DevKit "Shipping between June and September 2025."
The fact that they haven't updated that webpage with new information since October 1st 2025 seems to indicate bad news...