Using Perl, and through open source and open data, Open Food Facts is transforming our food system! In this talk, we'll dive into how Open Food Facts is helping reshape the food system to reduce its impacts on health and the environment. We'll go through how Open Food Facts helps create a treasure trove of information, and turn it into actionable data for consumers, researchers and policy makers. We'll explore how citizens and consumers are using this database to make smarter, healthier food choices, steering the food industry towards a more transparent and sustainable future. We'll show how we are mobilising technology (mobile crowdsourcing, artificial intelligence and more classic tech) in the pursuit of food enlightenment. We will tell the story of Nutri-Score, and how the Open Food Facts community helped shape food policy, going from a digital deployment to real-life impact. We will also touch on the on-going projects with Eco-Score and Open Products Facts. We'll go through the inspiring journeys of people who learned Perl in 2023 to contribute to Open Food Facts, the challenges of expanding and refactoring a Perl stack with very high impact, and what’s ahead.