One chord a day, drawn by the whole Warrior Network from a single shared seed: a hash of the calendar date over a curated pool, so every sister site is looking at exactly the chord you are. What changes from site to site is the answer, and on a five-string the answer belongs to the right hand.
A banjo hardly ever strums a chord. It rolls one — a fixed cycle of thumb, index and middle across the strings — and what the listener hears is the roll, with the chord underneath it as a kind of weather. Which means a chord diagram on its own tells a banjo player almost nothing useful. The question is which roll this shape wants.
The page answers it by counting rather than by taste. A roll leads with one string, and whatever lands on that first beat is what the ear takes as the chord, so the ranking prefers a roll whose opening string carries today's root, then one whose opening string is at least sounded, then whichever roll touches the most of the shape. Same shape, same roll, every time.
Then there is the fifth string, which is the whole argument for this instrument existing and which gets described honestly here rather than romantically. Across the library's own voicings it has three states: ringing open as a true drone, being asked for a pitch that a spike or a capo has to supply, or not being used at all. The page names which one today is, and whether the note it sounds belongs to the chord or leans against it.
The shape is computed in your browser, from your own calendar date, and never on the server: rendered pages here are cached at the edge for hours at a time, so a date baked into the HTML would cheerfully hand you yesterday's chord a minute after midnight. Once the page knows what day it is where you are, today's shape and roll appear below.
While you wait — or if scripting is off — the roll pages have all five recomputed note by note, and the chord reference has the whole library.