Max Tagher gave a talk at the August 2018 Bay Area Haskell Users Group meeting on Cryptonite, a repository on cryptographic primitives such as ciphers, hash functions, and more.

Demo Source Code: https://github.com/MaxGabriel/cryptonite-talk/tree/master/demos

Also available on YouTube: https://youtu.be/nsYwcjpYYFE

Mark Fine gives a talk at the Bay Area Haskell Users Group about discussing how to use the Shake build system as a replacement for make files.

Also available on YouTube: https://youtu.be/A1WE0E1gVbQ

Conor McBride gives a talk at the Bay Area Haskell Users Group about writing containers in Haskell. A container is a functor with a "shapes and positions" presentation: the contained values are given as the image of a function from positions, but the type of positions depends on the value of the shape. Some container theory will be live-coded using many GHC language extensions.

Conor has a post on his blog about this topic as well: https://pigworker.wordpress.com/2015/06/06/hasochistic-containers-a-first-attempt/

Also available on YouTube: https://youtu.be/dGv9zJfTf58