With the Basic Storage 2 GB group plan, you get 2 GB of additional storage for a full year on a shared Zotero account. The total space is split among three users, which is enough to store hundreds of journal PDFs without paying the full price alone. It is perfect for students or researchers who want to try Zotero Storage without a big commitment.
The main rule for every group member: never change the password or email of the shared account, and do not log out other members' devices. The account is used alternately or simultaneously, so each user must keep their own session stable. If a member breaks these rules, the subscription could be affected for everyone.
For now, JoinBareng has only opened the 1-user or private plan for Zotero Storage. The group plan with shared slots will follow soon after the activation flow is tested. In the meantime, you can order the 1-user plan to use a private account right away, or wait for the group plan announcement on the product page.