Oct 5th: The racket tutorials for languages design are very well done
Oct 3rd: Lizard.click is so pure, I wish I had created it.
Oct 3rd: Raspberry shake is a community of earthquake/seismograph sensors, with 3000 realtime sensor feeds around the world you can explore. Very tempted, but San Francisco is already pretty well covered.
May 12th: I had never heard of Lizardman's Constant before, but thse kinds of questions should probably be included in all surveys.
Apr 3rd: Threadless is bringing back a bunch of classic t-shirt designs for their 25 year anniversary. Lots of memories! [via waxy]
Mar 4th: Darren just reached 25 years over at LinkMachineGo. We're only a couple of months away over here. Time flies
Jan 14th: I haven't used it for anything yet, but automerge looks like a really nice library for doing CRDT/OT-like multi-player interactions
Jan 13th: If MixBox is too much, Spectral.js is a little more straight forward for browser work.
This is the personal website of Cal Henderson, Slack co-founder & CTO.
I give occasional talks, write code and sometimes articles.
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