Marshall is a user on octodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse.
If you don't, you can sign up here.
If you have the extra cash and want to support active Fediverse members (perhaps in addition to Mastodon or your home instance), here's @maiyannah's Patreon for postActiv: https://www.patreon.com/postActiv/
