image: nixos/unstable sources: - https://git.alanpearce.eu/nix-packages environment: NIX_CONFIG: "experimental-features = nix-command flakes" repositories: nixpkgs: https://nixos.org/channels/nixpkgs-unstable tasks: - nixpkgs: | nix-instantiate --eval -E '(import {}).lib.version' - build: | nix shell -f '' nix-build-uncached -c nix-build-uncached nix-packages/ci.nix -A cacheOutputs