foopad is (i'm told) similar to protopage, but with more of a barrier to entry (requires signup). i don't have the time or inclination at the moment to have a poke around, but if it's any good then drop me a message in the forum. also, i'm back from the uk.
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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