That’s what’s literally happening in your kidneys. Your primary urine is low concentrated, and gets converted into high concentrated secondary urine through several fun biophysicochemical reactions. Boring piss gets to be exciting piss. Wohoo?
What does the graph say? what’s on the x and y axis?
Thanks for letting me find that hilarious journal
Might not tick all boxes, but etherpad may be a nice alternative for you. It’s more like a collaborative note taking thing, but gets the job done if you’re not too concerned about encryption and hide the server behind a simple HTTP authentication.