The letters page in the latest edition of the Mag Pi magazine " #MagPiMonday :other social media" mentions Mastodon, and gives Threads & Insta IDs but not one for Mastodon. So, for anyone looking to join in with #MagPiMonday, this may help @themagpi & @Raspberry_Pi 🙂 Unfortunately the provided https://magpi.cc/mastodon link in the reply doesn't help readers to find the Mastodon account details...
Host your own Mastodon instance on a Raspberry Pi - Raspberry Pi
Why you'd want to host your own Mastodon instance on a Raspberry Pi, and a step-by-step guide to how to do it, from Pete at Mythic Beasts.Pete Stevens (Raspberry Pi)