Bun is getting a lot of hype due to all the press, but almost everyone is just echoing Bun's docs and marketing material and lack direct experience using it. I haven't done a deep dive into Bun yet, but I have tried porting a legacy project to it. Hit a lot of issues after a few hours of hacking around. It wouldn't correctly install node modules because of opt-in dependency lifecycles (and maybe other issues?) and then I couldn't use it to execute the existing webpack build without encountering opaque runtime errors.

The promise of Bun seems pretty good, but I think their marketing material is further along than their core projects atm.