I am a Mac developer, mostly in Tcl/Tk. See my software page at [L1 ] and my blog at [L2 ].
In addition to several commercial products using Tk, Tcl and Python, I am the author of several open-source Tcl/Tk packages, both C-level and script-level, to improve Tk's integration on OS X. These packages include the following:
tkdock - manipulate the Dock icon on OS X
macsheet - custom sheet dialogs on OS X
tkmacicons - use Mac-native icons in an application
aquahig - sensible Mac-conforming defaults for some Tk widgets
macgrowl - Tcl integration with the Mac Growl notification system
cocoaprint - Native Mac print dialogs
mactoolbar - Native Mac toolbar
prefstoolbar - Native Mac preferences toolbar
tclservices - Access to the Mac's Services menu
quicklook - Integration with Mac's QuickLook file preview
macnotify - bounce the Dock icon for user alerts
windowlist - implements a Mac-standard "window" menu item
I've also developed some cross-platform Tk widgets:
tkwebview - parses and displays simple HTML
SimpleDND - intra-application drag-and-drop
In my day job, I am self-employed as a book publisher. See [L3 ].