Cloud Native Sustainability Month 2026 — Barcelona Edition

The fourth Barcelona edition of CNCF Sustainability Month, run by Cloud Native Barcelona with the Green Software Foundation Barcelona chapter and hosted by Schwarz Digits Spain on Carrer de Bergara. It is an annual event from the CNCF Environmental Sustainability Technical Community Group, aimed at environmental sustainability in cloud native and open source. The format is lightning talks: doors 18:30, an hour of ten-minute community talks from 18:45, then food and mingling until 20:30. The line-up is deliberately not fixed in advance: the call for speakers is open until 26 October, and the organisers say a finished project is not required — a new idea, a lesson learned or an open question is enough. Proposals go through bit.ly/cnsm-bcn. Why go: short talks with a low bar to speaking is how you find out what people are actually trying, and the sustainability angle on cloud native is still thin ground. Best for platform and SRE engineers, and anyone with a half-finished idea worth ten minutes.