---
kind: pipeline
type: docker
name: nixpkgs-unstable

platform:
  os: linux
  arch: amd64

steps:
- name: build
  image: nixos/nix
  commands:
  - nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixos
  - nix-channel --update
  - nix-build ci.nix -A buildOutputs
  - nix eval -f default.nix 'lib'
  - nix eval -f default.nix 'modules'
  - nix eval -f default.nix 'overlays'

- name: deploy
  image: nixpkgs/cachix
  commands:
  - nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"

---
kind: pipeline
type: docker
name: nixos-unstable

platform:
  os: linux
  arch: amd64

steps:
- name: build
  image: nixos/nix
  commands:
  - nix-channel --add https://nixos.org/channels/nixos-unstable nixos
  - nix-channel --update
  - nix-build ci.nix -A buildOutputs
  - nix eval -f default.nix 'lib'
  - nix eval -f default.nix 'modules'
  - nix eval -f default.nix 'overlays'

- name: deploy
  image: nixpkgs/cachix
  commands:
  - nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"

---
kind: pipeline
type: docker
name: nixos-20.03

platform:
  os: linux
  arch: amd64

steps:
- name: build
  image: nixos/nix
  commands:
  - nix-channel --add https://nixos.org/channels/nixos-20.03 nixos
  - nix-channel --update
  - nix-build ci.nix -A buildOutputs
  - nix eval -f default.nix 'lib'
  - nix eval -f default.nix 'modules'
  - nix eval -f default.nix 'overlays'

- name: deploy
  image: nixpkgs/cachix
  commands:
  - nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"

...