A SQLite extension to query Excel (.xlsx, .xls, .ods) files as virtual tables.
An article presenting a way to abuse PDF XML Forms Architecture (XFA) fallback content to display malicious documents when the PDF reader does not support XFA.
A paper summarizing two independent studies of the ways users organize and find files on their computers. The first study (Barreau 1995) investigated information organization practices among users of DOS, Windows and OS/2. The second study (Nardi, Anderson and Erickson 1995), examined the finding and filing practices of Macintosh users. There were more similarities in the two studies than differences.
An open source backend consisting of embedded database (SQLite) with realtime subscriptions, built-in users management, convenient dashboard UI and simple REST-ish API.