✨This talk was recorded at ElixirConf EU 2024. If you're curious about our upcoming event, check https://elixirconf.eu ✨ Abstract: I’ve been working on transport.data.gouv.fr for more than 3 years. The idea behind this talk is to show how versatile Elixir & the BEAM are, and how they helped us implement a wide array of interesting features more easily, at a lower ops cost too. We have a lot of stuff going on: maps with 650k points shown, real-time maps showing vehicles with 80+ sources (channels/presence), “business reverse caching proxy” to reduce the load of 3rd party servers, XML query generators with LiveView, on-demand tooling (again using LiveView), data analysis scripts with LiveBook, etc etc. We also have a strong maintenance process in place, and I want to share how good the maintenance story is. Let's keep in touch! Follow us on: 💥 Twitter: https://twitter.com/ElixirConfEU 💥 Facebook: https://www.facebook.com/CodeSyncGlobal 💥 LinkedIn: https://www.linkedin.com/company/code-sync 💥 Mastodon: https://genserver.social/codesync