2020

• Thunderbolt, DisplayPort, and USB

2015-2018

• Making buttons part of the key view loop within a view-based NSTableView
• NSFastEnumeration template code
• Cocoa text system and delegate messages
• Cocoa text system and Undo
• Skeleton code for a view-based NSTableView
• Local web server in Python

2012

• Notes on MMX/SSE and a searchable table of intrinsics.
• Easy color conversions between NSColor, CGColor, CIColor
• Determining size for CATextLayer using CoreText (CTLineCreateWithAttributedString, CTLineGetTypographicBounds)

2006

• How to process command line arguments before the AppKit starts (NSProcessInfo versus NSApplicationMain)