My handle is “Seirdy” on all the platforms I use:

• Tildeverse: ~seirdy on envs.net
• Forge: ~seirdy on Sourcehut
• Forge: Seirdy on GitHub
• Forge: Seirdy on GitLab
• Pleroma/Mastodon: Seirdy on Pleroma on envs.net. My old account was on Fosstodon; I’ll get around to migrating soon.
• Matrix: @seirdy:envs.net
• IRC: Seirdy on Freenode, Snoonet, tilde.chat, OFTC, EFnet, Quakenet, and some other networks.
• Preferred email: seirdy@seirdy.one
• PGP: 36B154A782AEA0AC

My preferred forge for personal projects is Sourcehut, but my repositories have remotes for GitHub and GitLab too.