This is the wrong answer (and maybe a little condescending) because the product is targeted at the widest of tech audiences.
Vercel is failing on communications a little bit.
They don't have some highly specialized tech that 'nobody should understand' - they're literally making tech for the front-end masses, basically 'tech commoners'.
There are literally a handful of people on this page saying 'what does this do?' - how often do you see that on an HN page?
Anyone in tech, should be able to plainly understand what every other tech companies does, within a few sentences.
Some of it might need to be abstracted, and some of it may not fit very well into a sentence - but at least the Wikipedia version should be clear.
Explaining Next - the frame work in slightly more mechanical terms, and then, separating the notion of 'hosted service' would be great. (If that's what it is, because frankly I'm not even sure).
If you go to vercel.com - nowhere does it really say 'what it is'.
The introduction is 'Vercel combines the best developer experience with an obsessive focus on end-user performance.
Our platform enables frontend teams to do their best work.'
That is 'bad communication' because it's completely not informative.
Sometimes marketing speak lingers on 'why it's great' - fair enough, but that statement above isn't even that, it's secondary jargon.
'We enable teams to do their best work' It needs some work.