I look at tools like Rome and they might have been relevant 5 years ago.

I think Bun has a better shot than Deno because it has a very fast built in node_modules installer. But I think Bun's goals are too ambitious - trying to be all things to all projects from a single binary. No one cares if you have to use a separate binary, esbuild, for all your bundling needs, for example.

It's amusing how the entire JS ecosystem put up with such slow build times for a decade. If these JS tools teach us anything it's that JavaScript doesn't cut it for performance and a compiled language is the way to go.