Library / zim.usda.extension.planned
USDA & Extension pubs
US government and cooperative-extension plant, soil, and food-production publications curated for offline use.
License
Public domain (US gov)
STUB. Prefer US federal PD works; note any state Extension licenses before packaging.
Install
Path on device: corpus/zim/usda_extension_curated.zim
Paid packs require a website account and linked device serial for download. Once on the device, packs work forever offline.