The raw data for numberdb.org is contained in this repository, more specifically, in the folder data.
Each table of numbers is stored in its own folder. The main file for each table is called table.yaml. It can import other files, such as id.yaml and numbers.yaml.
Ideas for new tables can be posted on https://github.com/numberdb/numberdb-data/issues, which we treat as a to-do list. Please add background information about the data, unless you plan to enter the table in yaml format yourself.
After accepting pull-requests that contain new tables, run the indexer by clicking on Actions -> Indexer -> Run workflow -> Run workflow (on branch main). This will create id.yamls for the new tables.