> What is Deno's business model? How do you build business around a JS runtime?

Everything else. Seems everyone and their mother are building "platforms", so they can properly lock you in, look at Vercel for example, to get some inspiration where the rest is probably at least aiming.

Not sure why people keep falling for it though, guess it's easy enough to get started that people don't really want to understand deeper, if you can pay someone $XXX/month to not have to think about it, many people tend to go that route, especially if VC-infested.

Hosting (Deno Deploy), https://deno.com/deploy/pricing

Wait until a big company buy them. That seems not to happen.