For @COMFY Tech Artel Poznań purposes I plan to use #pixelfed as a gallery of art / designs, people would vote for and (hopefully) commission in 2d/3d print.
Now, anyone can point me, please, to a plugin, connector or whatnot to add "order" or "commission" button to a post there?

See a crude example here.

Kanenas on Metapixl

^Metapixl