Yep. Amazing

This adds considerable versatility to the WordPress blocks editor — I wanted to use Bootstrap in my current custom theme, but didn’t want to integrate Bootstrap fully, only using it within blocks when needed. Things like the dark mode (data-bs-theme="dark") can be added in, you can use onClick to utilize JavaScript (I used that to click open Bootstrap cards, etc), and really much more. Saved me a lot of time having to do things in a much more manual way.

Highly recommend this plugin, works great.