language: nix nix: 2.2.1 matrix: include: - name: nixos-unstable env: NIXPKGS_CHANNEL=nixos-unstable IMAGE_TAG=latest - name: nixos-19.03 env: NIXPKGS_CHANNEL=nixos-19.03 - name: nixos-19.09 env: NIXPKGS_CHANNEL=nixos-19.09 script: - nix-shell --run ./.travis.sh