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OMG you're the creator of https://rr-project.org/ ! That's the one I wanted to use first. Ho ! We have to talk :)

Sure, email me.

rr inspired me when I choose the name rrweb:)

Hello @yz-yu and thank you for this fabulous project rrweb ! We are developing educational tools out of it (programming tutorials with audio, for example)! Keep up the good work.

By the way, I find your pernosco debugger very interesting for pedagogical purposes. We are working on integrating Debug Adapter Protocol to preprocess the execution of a program and execute it line by line on the client side for teaching purposes but your solution looks much more elegant ! Any plan to make it compatible with Python and Java or other JVM languages ?

Right now we're focused on selling the product we have.

The infrastructure we built to support JS would extend pretty easily to Python. Extending to Java would be a lot more work. No plans to do either anytime soon (unless someone wants to pay us significant money for that).

PostHog is using rrweb for recording user sessions :D