The Wikimedia blog theme should align to Wikimedia Foundation's coding principles:
- stylelint & stylelint-config-wikimedia (happened in https://github.com/wikimedia/wikimediablog-wordpresscom/commit/8ecc329d827db0556dcc242be5f579bfa175654e)
- eslint & eslint-config-wikimedia
- PHPCodesniffer either with MediaWiki rules, although it might be from context useful to stick with WordPress rules