[DON'T MERGE] debug build time performance #17

	name: Docker build

	on:
	pull_request:

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	build:
	runs-on: ubuntu-latest
	timeout-minutes: 30
	strategy:
	matrix:
	ruby_version:
	- '3.3.6'
	# - '3.3.5'
	# - '3.3.4'
	# - '3.3.3'
	# - '3.3.2'
	# - '3.3.1'
	# - '3.3.0'
	# - '3.2.6'
	# - '3.2.5'
	# - '3.2.4'
	# - '3.2.3'
	# - '3.2.2'
	# - '3.1.6'
	# - '3.1.5'
	# - '3.1.4'

	steps:
	- name: Check out Git repository
	uses: actions/checkout@v4

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Build
	uses: docker/build-push-action@v5
	with:
	context: .
	platforms: linux/arm64
	push: false
	build-args: \|
	RUBY_VERSION=${{ matrix.ruby_version }}

Provide feedback