graffiti

a wall at runv.club/graffiti/ anyone can paint

in the terminal: help graffiti

The wall at https://runv.club/graffiti/ is one page that every member can paint on. Whatever you leave there stays until someone paints over it, and every version is kept.

graffiti               open the wall in your editor; save and quit to put it up
graffiti show [N]      the wall as it is now, or version N
graffiti log           who painted when
graffiti restore N     bring version N back

It opens in $VISUAL or $EDITOR (nano if you haven't set one). If someone else paints while you're editing, yours doesn't go up: run graffiti again. Your version waits in ~/graffiti.rej so nothing is lost.

Plain text works, and so does a little HTML:

p br hr h1 h2 h3 b i u s em strong small big mark code pre
blockquote ul ol li span div center a img

with style="" for color, background-color, font-size, font-family, font-weight, font-style, text-align and text-decoration. Links go to http(s), gemini and gopher. Images have to live on runv.club, in your public_html for example: <img src="/~you/cat.png">. No scripts, no frames, no images from elsewhere; anything else is taken out.

Up to 32 KB. Be kind to what others left there.