Is there any open source browser session recording tool? With recording features like the one in Fullstory or Hotjar. So one can record what people do at one's

Is there any open source browser session recording tool? With recording features like the one in Fullstory or Hotjar. So one can record what people do at one's website, and see what UX problems they run into, and if something makes them feel bored and leave. Without sending their browser session to a 3rd party. (Fortunately the one I'm using right now is able to exclude parts of the recording, client side. E.g. `input` fields. But still would feel better to not send anything to a 3rd party)