add optional find_location on startup #8

	name: build & publish Docker image

	on:
	push:
	branches:
	# TODO: rename master to main
	- master
	# TODO: remove before merge
	- docker

	jobs:
	build-publish:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: set up Docker buildx
	uses: docker/setup-buildx-action@v2

	- name: log into the GitHub Container Registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ github.token }}

	- name: lowercase repo name
	id: lower-repo
	uses: ASzc/change-string-case-action@v6
	with:
	string: ${{ github.repository }}

	- name: set current date as env variable
	id: version
	run: \|
	echo "builddate=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT

	- name: build and push Docker image
	uses: docker/build-push-action@v4
	with:
	file: Dockerfile
	push: true
	tags: \|
	ghcr.io/${{ steps.lower-repo.outputs.lowercase }}:latest,ghcr.io/${{ steps.lower-repo.outputs.lowercase }}:${{ steps.version.outputs.builddate }}
	platforms: linux/amd64,linux/arm64
	# https://docs.docker.com/build/ci/github-actions/cache/#cache-backend-api
	cache-from: type=gha
	cache-to: type=gha,mode=max

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