Prior art

• Alyssa Ross' pr-tracker (source) Server-side rendered web app. Computes landings for a given PR on the fly by invoking Git on the backend.
• ocfox's nixpkgs-tracker (source) Client-side rendered web app. Computes landings for a given PR on the fly using GitHub api.
• Maralorn's nixpkgs-bot (source) Matrix bot that provides notification of PR landings. Periodically computes new PR landings using Git and sends messages.

All of the above are Nixpkgs specific, whereas this project is not. None of the above internally maintain a dataset of landings. None of the above currently provide an HTTP API.