Purely functional deployments with Nix

[2015-03-27 Fri 18:59] speaker: Chris Forno, Zalora event: Friday Hacks, NUS Hackers https://github.com/zalora/talks ** zalora online fashion site ** evolution of a web chat bot from shell script to e-commerce platform ** cms at zalora 12k lines of puppet ** problems with cms master-slave architecture pull based don’t know the state of the system (tries to infer) non-deterministic are not actually declarative ** enter Nix jQuery -> React Puppet -> Nix system introspection -> Nix store ** upcast interface with aws cloud formation evaluates a nix expression into a json for cloud formation check in a store.json file into git ** at zalora nix + upcast at 9k loc