Most of our data can be found in the first export in CSV format. The same data is available in a Sqlite database. The site's pictures are exported in chunks to keep files small. The pictures are named using the picture IDs that appear in the CSV data.
The core data download is about 1MB (compressed), so don't be afraid to download it daily. The pictures are about 30MB. Saving a copy of our "big list" page is also a very cheap way to preserve the main gist of our work.
Note that downloads only show the first 20 records for now as a proof of functionality. This should be expanded soon once a few non-technical things are sorted out.