00:44 using Haskell, Nix, and Emacs for integrated offline development08:48 building environments for particular dependencies with Nix09:58 what Emacs and GHC have in common12:58 developing with typed holes14:43 compiling to categories20:35 learning to love mathematics22:41 applications for compiling to categories25:25 Coq28:15 specifying the ByteString library in Coq34:30 Why Haskell?40:00 writing a compiler in C vs Haskell43:32 gitlib45:52 getting your head around Haskell48:23 recursion schemes/F-algebras52:33 hnix