Opal.rb
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Casey Watts, Adam Cuppy, Richard Schneeman, Craig Buchek, Landon Gray, Amanda Lundberg, Keith Bennett, Olya Boiaryntseva, Jose Miguel Tomita Rodriguez, Tom Brown, Bryce Simons, Jacob Daddario, Mike Eduard, Jenner La Fave, Alexander Momchilov, Andrew Gauger, James Reid-Smith, Adam E. Hampton, Yasu Flores, Anas Alkhatib
![talk by Lin Yu Hsiang, Martin J. Dürst, Satoshi "moris" Tagomori, Koichi ITO, Yuichiro Kaneko, nagachika, Naoki Kishida, MITSUBOSH, Sorah Fukumori, Hiroyuki Inoue, Shunsuke Onishi, ODA Hirohito: [JA|EN] Lightning Talks](https://i.ytimg.com/vi/B2NTL_J62JE/mqdefault.jpg)
