A Cocoa / Objective-C wrapper around SQLite

Darwin/macOS emulation layer for Linux

Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

Send User Notifications on macOS from the command-line.

OS X menubar status indicator

ResearchKit is an open source software framework that makes it easy to create apps for medical research or for other research projects.

An alternative to Core Data for people who like having direct SQL access.

Common iOS utilities that I've needed for my apps. Hopefully some are useful for yours.

Framework for reading/writing TextBundle files

A lightweight macOS app used to automatically generate (and customize) an Apple Music/iTunes Music Library XML file.