I’m a former marine biologist (having worked for ~10 years on sea ice & polar research) converted into a Mac developer. Since the last 15+ years, I’ve worked on reference management systems, first the collaborative web-based literature manager refbase, then worked for Citavi and Papers. I’ve also contributed to the Bookends v13 scripting implementation (see my scripting guide for Bookends). I’m now working on Keypoints, a plain-text focussed note-taking & PDF annotation app for the Mac which allows you to build up your personal knowledge base while highlighting your PDFs.