Raspberry Pi Imager JSON Generator

This tool generates the JSON file used by Raspberry Pi Imager to list Anthias disk images. The output is deployed to anthias.screenly.io/rpi-imager.json via the website CI workflow.

Supported Boards

• pi2 (maintenance mode)
• pi3-64
• pi4-64
• pi5

Pi 1 and Pi Zero are no longer supported. The 32-bit armhf pi3 image is still built and remains directly downloadable from the release, but it is not listed in Imager — Pi 3 users are steered to the 64-bit Qt6 pi3-64 stream.

Local Development

pip install requests
python raspberry_pi_imager/bin/build-pi-imager-json.py

How it Works

1. Fetches the latest release from GitHub
2. Filters .xz assets to only include supported boards
3. For each matching asset, fetches the corresponding .json metadata
4. Patches URLs and file sizes, tags each entry with its hardware devices (so Imager's device picker doesn't hide it), and appends a maintenance mode notice to any listed maintenance board (currently only pi2; the 32-bit pi3 is a maintenance board but is not surfaced in Imager)
5. Outputs a JSON file compatible with Raspberry Pi Imager