using determinate systems nix installer once again #24

	name: dev-buildx

	jobs:
	docker:
	runs-on: ubuntu-latest
	steps:
	-
	name: clone https://github.com/heywoodlh/dockerfiles
	uses: actions/checkout@master
	with:
	name: heywoodlh/dockerfiles
	repository: heywoodlh/dockerfiles
	path: ./dockerfiles

	-
	name: Set up QEMU
	uses: docker/setup-qemu-action@v1

	-
	name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1

	-
	name: Login to DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKERHUB_USERNAME }}
	password: ${{ secrets.DOCKERHUB_TOKEN }}

	-
	name: Install nix
	uses: cachix/install-nix-action@v27
	with:
	github_access_token: ${{ secrets.GITHUB_TOKEN }}

	-
	name: Setup nix magic cache
	uses: DeterminateSystems/magic-nix-cache-action@main

	-
	name: Update flake
	run: \|
	cd dockerfiles/dev
	nix flake update
	git add flake.lock

	-
	name: Get current month
	run: echo date=$(date +%Y_%m) >> $GITHUB_ENV

	-
	name: Build and push heywoodlh/dev
	uses: docker/build-push-action@v2
	with:
	platforms: linux/amd64,linux/arm64
	push: true
	tags: heywoodlh/dev:latest,heywoodlh/dev:${{ env.date }}

Provide feedback