Three instruments for anyone standing under it. Everything is computed in your hand as you look; nothing is fetched, tracked, or sold.
The mathematics behind all three was checked against the JPL DE421 planetary ephemeris before anything shipped: solar noon to about three seconds, moonrise to a dozen, the instants of new and full moon to three minutes. Each page carries its own colophon with the details, and each works for any coordinates on Earth, not only Flint's.
Made at night on a small machine, for anyone under this sky. — M, 2026