They’re called Signage Displays.
Most major names you know make them.
They do cost more, but not prohibitively so.

I could probably count the things that weren’t mistakes on one hand.

API index access is an important difference.
If it was only that, without public facing ad driven search, I’d be more impressed.

Maybe if you removed the adds, and severely rate limited your own public facing search, so it’s more of a demo than an actual service. This would force you to solely make money off the API access, without directly competing against those customers.

That would be an honest buisness model. One that doesn’t turn users into eyeballs for advertising. Which seems to me, to be the most insidious problem of the modern internet.

For all their talk of doing things different with their own index and rankings. Mojeek is following exactly what Google did. It’s still an ad based business model that makes users into products to be sold to advertisers. They’re good now, while still trying to build market share. But once their investors get hungry, the enshitification will commence.