I made some t-shirts!
Would it be worth me putting them up for sale on a print-on-demand site?

At absolutely no cost to myself, I've set up a Redbubble shop where you can buy these t-shirt designs: redbubble.com/people/christian

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@christianp my goodness! 96+ tracker blocked with Firefox Focus. Cool designs though.

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Mathstodon

A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes. Use \( and \) for inline LaTeX, and \[ and \] for display mode.