I've been testing a federated classified ads server, flohmarkt ("Flea Market") which I think is a promising idea for promoting a circular economy among friends. Details on my hub.
It raises quite a few questions for me though - it's going to need more trust & safety features than other #Activitypub applications for example.
At #FOSDEM last year, a group of us ran a unique devroom that got developers and legislators together to discuss how to legislate as if #SoftwareFreedom matters. It made a big difference to how things went during 2024 so we are doing it again in 2025. If you want to join in, the CfP is out now:
Loving this new release line from @AlmaLinux - it's the future AlmaLinux 10 that will have a cat codename, so the new preview line is called #AlmaLinux Kitten!