10:40 The Games Developers Play
11:30 Designing an engineering team: Making room for everyone
2:00 ???
2:50 Uncoupling Systems
4:00 Building for Gracious Failure
10:30 Retrospectives for Humans
11:20 The Developer's Toolkit: Everything We Use But Ruby ???
1:50 Pointers for Eliminating Heaps of Memory
2:40 Reducing Enumerable - An Illustrated Adventure ???
3:50 Cache is King: Get the Most Bang for Your Buck From Ruby
4:40 The secret power of Ruby 2.6: JIT
10:30 No Title Required: How Leadership Can Come From Anywhere
11:20 Hijacking Ruby Syntax in Ruby ??? (so may good sessions)
1:50 Building Serverless Ruby Bots (two good sessions)
2:40 Eiffel's Tower (two good sessions)