Set up Barrier to share keyboard and mouse between my desktop (yes I have one) and my laptop. Had to generate the SSL cert manually as per https://github.com/debauchee/barrier/issues/231#issuecomment-1232536022 and also manually make the server config as per https://github.com/debauchee/barrier/issues/1421#issuecomment-1038501497 (subbing the actual client and server names for the all-caps placeholders there). It's been about 15 years since the last time I did keyboard/mouse sharing, but it still feels like the future!
The real future part is that I can now also add my phone (PinePhone) to the mix, sharing keyboard and mouse between all 3.
And now I have yet another way to be confused about which machine I'm working on / saving my work on.