This is a really nice post and series. I'm curious how you're doing the profiling and then generating the flame graphs e.g. in https://marvinh.dev/blog/speeding

This is a really nice post and series. I'm curious how you're doing the profiling and then generating the flame graphs e.g. in https://marvinh.dev/blog/speeding-up-javascript-ecosystem/ https://marvinh.dev/blog/speeding-up-javascript-ecosystem/. Is this Chrome's built-in devtools being used or something else?