The basic purpose of bŵtcamps is explained at the top of the Sept 2022 Bŵtcamp thread, so that will give you an idea.
If you keep an eye on the Bŵtcamps 2023 thread, you’ll find the latest information on when they’re likely to run announced there. We’re still in discussion about the possibilities for this year, but we hope to hold 4 during 2023.
To get an idea of what they’re like, there is a blog post here written by Heather who attended a bŵtcamp in 2019.