.travis.yaml: change how cachix is installed
Sadly nixpkgs haskell set is not stable and there's little
I can do to improve that, so official way to install cachix is via
known nixpkgs commit as above
Test on multiple channels
Closes fgaz/nur-packages-template#1
Define modules as paths to functions, not functions
Eval lib, modules, and overlays
Fixes #2
Update to the new NUR format
See https://github.com/nix-community/NUR/issues/45
Add not about travis cron jobs
No need to export $outs
It actually hid the error code
cachix username -> cache name
Trigger NUR update only on master builds
Mention the cachix private key
Initial commit
Extracted the skeleton from https://github.com/fgaz/nur-packages.git