[re-thc]

Deno offered too little too late.

Performance? It wasn't faster and potentially slower until quite very recently when Bun entered the game. Even today it isn't really faster especially on the compatibility layer.

Security? It brings that up a lot but do you use it? Client side? Languages like Java also had a security manager in which it is dropping because of low usage. No 1 really manages security at this layer anymore.

Integration? Yes you have Typescript etc out of the box but with no compatibility and libraries, does it really save you time? Bun did all of it but with compatibility. Deno more recently had to go back to building compatibility with node.

And Deno just didn't have the marketing budget like Vercel to push it. People tried it, realize they couldn't do certain things e.g. connect to the database via ORM and gave up.