Hello, this is Leslie from the Femiwiki development team. If you run a MediaWiki site, you have probably heard that the Graph extension (Extension:Graph) was taken down over security problems and the Chart extension (Extension:Chart) took its place.[1] To use the Chart extension outside the Wikimedia Foundation, however, you have to provide your own renderer to draw the charts. Femiwiki has run this renderer on AWS Lambda since 28 October 2026 so that pages can contain charts, and we are releasing the same setup as an OpenTofu module called terraform-aws-mediawiki-chart-renderer so that other wikis can use it too. In this post I will walk you through attaching this module to a MediaWiki site on AWS, step by step.