Add container dev environment, pkg instructions (#412) #42

	# This is a basic workflow to help you get started with Actions

	name: CI

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the devel branch
	push:
	branches: [ devel ]
	pull_request:
	branches: [ devel ]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	build:
	runs-on: ubuntu-latest
	timeout-minutes: 10

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v3

	- uses: actions/setup-node@v3
	with:
	node-version: '18'

	- name: Cache node modules
	id: cache-node-modules
	uses: actions/cache@v2
	with:
	path: node_modules
	key: ${{ runner.os }}-node-modules

	- name: yarn install
	uses: nick-invision/retry@v2
	with:
	timeout_minutes: 10
	max_attempts: 3
	command: yarn install

	# Build
	- name: Run linters
	run: npm run lint && npm run prettier:check

	- name: Webpack
	run: npx webpack --optimization-minimize --devtool=source-map

	- name: Tests
	run: npx jest

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