mathstodon.xyz is one of the many independent Mastodon servers you can use to participate in the fediverse.
A Mastodon instance for maths people. We have LaTeX rendering in the web interface!

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I'm impressed that you make so many different ones... I made my own cards for about 15 years... but I restricted myself to one design, with 2 or 3 options, each year... #HandmadeCards are so much nicer to send... but I got tired of being a factory for 2-3 days each year...

Glad to see a fellow card maker.