Lots of open tabs to be swept. Brace yourselves.
Git
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Git - SVN Crash Course. Coming from Subversion? Lookie here.
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gitnub. I was really apalled by gitk (but then again, I’m appalled by most tools written in Tk), so this more Mac-style repository browser comes in quite handy.
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Git Peepcode. Of course.
Can you tell I’m looking into Git right now?
Ruby
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Matz’ Google Tech Talk on Ruby 1.9. Damn, Google employees have it all.
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MacRuby - Ruby running on Objective-C. A Ruby project by Apple. Awesome.
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Ruby, an AppleScript Alternative. Part #2 and #3.
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Ruby 1.9 with Symbol#to___proc and (soon) curried Procs. You know it from Rails, now this is Ruby standard:
:attributes.to_proc.
Rails
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Tarantula vs. your Rails app. Think of it as heckle for your application.
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count vs. length vs. size. A small tidbit on how each of these methods work on ActiveRecord association proxies.
Mac OS X
- Secrets. An ever-growing list of hidden preferences. Comes with a handy-dandy preference pane.