Thanks for sharing! Tinkering like this is what made me fall in love with Linux something like 25 years ago. Love to see the spirit alive and well.

To add to this, to block communities, you need to go to your “home” server (ie where you have a lemmy account), navigate to Settings > Blocks and then search for them under “Block community”. This cleaned up my “all” feed.

e.g. https://imgur.com/a/7SRBBJE