Now in its fourth year, AltConf has become the place to be if want to be in San Francisco but don't have a ticket to WWDC.
AltConf 2015 is something to see. It remains absolutely free to attend, but has grown now to occupy three movie theaters at the AMC Metreon in downtown San Francisco. Two theaters show live talks from dozens of speakers on a range of topics that span the gamut from programming to social issues to business development. A third theater shows video highlights from many other technical conferences.
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