fenwick 🔲 is a user on octodon.social. You can follow them or interact with them if you have an account anywhere in the fediverse.
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I figured out that you can cross-post to the #birdsite with #IFTTT by linking to your Mastodon atom feed: https://ifttt.com/applets/52360917d-if-new-feed-item-from-https-octodon-social-users-fenwick67-atom-then-post-a-tweet-to-fenwick67
