DigiPi SD-card image 2.1-3

Read before installing. Link only: the ready-to-flash image is a password-protected download for patrons of https://patreon.com/km6lyw (the author: "Anything gets you access to the DigiPi image, even a dollar"), and the author asks that the image not be posted online, so no version is mirrored here. The individual programs are open source; the DigiPi repository is https://github.com/craigerl/digipi (no licence file in it as of 2026-09-18). File size and checksum are not published. Writing (craiger.org): balenaEtcher on Windows, dd on Linux; unzip the image first if not using balenaEtcher; "It'll fit on a 8G card with room to spare". First boot (craiger.org): join the Wi-Fi hotspot "DigiPi" with password abcdefghij, open http://10.0.0.5/ and click Wifi to enter the home network, reboot, then open http://digipi/ (or http://digipi.local/), click Initialize to enter callsign, passwords and grid square, and reboot.