Goffi, French #XMPP a 20+ years #open and #standard #protocol, boasts a minimal, well-conceived core feature set. It enables diverse software to intercommunicate without reinventing the wheel. It has evolved over time, maintaining backward compatibility, and allows for low-resource implementations. Suitable for any conceivable use case, it advocates for no indiscriminate resource consumption. XMPP stands as one of the communication protocols most aligned with the #ecological challenges of today and tomorrow.