There are 2 repositories under bookends topic.
Alfred Workflow to Integrate with Bookends, an academic reference manager/bibliography tool for macOS
Automation scripts for macOS
A tool to synchronize bibliographic data across applications
Bookends Store for https://github.com/retorquere/zotero-sync
A NodeJS client for the Bookenends Reference Manager
Recursos para Mellel e Bookends (ambos para macOS) visando a elaboração de trabalhos acadêmicos formatados segundo as normas da ABNT.