Add Makefile, Dockerfile and build workflow #1

	name: Build

	on:
	push:
	tags:
	- '*'

	jobs:

	build:

	runs-on: ubuntu-latest
	steps:
	- name: Checkout project sources
	uses: actions/checkout@v4

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: '20.x'

	- name: Install dependencies
	run: yarn --frozen-lockfile

	- name: Build app
	run: brunch build --production

	- name: Log in to the Container registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ghcr.io/${{ github.repository }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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