Hop on the Flatcar for a ride! Flatcar is a specialized operating system deeply integrated into the CNCF ecosystem. Discover how you can smoothly transition from project work to actively participating in other CNCF initiatives. We will explore what is Flatcar, how is it part of the landscape of Special Purpose Operating Systems Working Group (wg-sp-os). What makes Flatcar specialised for running Container workloads and other workloads like WebAssembly (WASM). All while contributing upstream to projects like Gentoo, systemd-sysext, and CAPI.