> nowadays, it's cool to say this new toy is faster than the rest because it is written in Rust without providing further details?
What more details do you want? You run it, and it runs in milliseconds rather than seconds. I don't care if it's because it's written in Rust or because they sacrificed a goat to Baal, I care that it's fast.
When I visit the Bun project landing page[0], I get concise reasons as to why bun is faster than its peers.
[0] https://bun.sh/