It looks a bit like a notebook, but the output of an Evidence project is a static site, so you can build a data product that takes advantage of web features like click-based navigation. Queries and pages are built once at build time, so production projects are very fast. Here's an example project from one of our open source community members: https://mdsinabox.com/
Having just tried out Voila, I do think these products are serving pretty different audiences on the front end.
When I open examples in the Voila gallery, it spends 15s or so building the site, which a dev may tolerate, but a business exec has already given up on.
One of the benefits of a static site for reporting use cases is that it’s just HTML and JS. It loads virtually instantly as it doesn’t hit a database - all the data is shipped with the site.
Open it on your phone when you wake up, in a cab, by the gate at the airport: you’re looking at a mobile optimized site, and 5s later you can finish writing that email with the datapoint you needed.