mstdn.starnix.network is one of the many independent Mastodon servers you can use to participate in the fediverse.
Starnix is a Fediverse/ActivityPub Focused platform. Topics are mainly Technology and computer related but are not required to fall into those categories.
@iska Don't bother formating it with NTFS, use FAT32 it's cross compatible with Windows and Linux. If you need single files larger than 4GB use exFAT, it's not as compatible but should work on Windows and Linux.