Explore the latest developments in Zephyr's POSIX API implementation in this 36-minute talk by Chris Friedt from Tenstorrent. Gain insights into recent improvements since EOSS 2023, including performance metrics, test coverage, and API reliability. Discover inter-API operability, internal Zephyr support APIs, and Kconfig shortcuts. Learn about mapping POSIX options to Kconfig symbols, sysconf() and feature-test macros, and documentation updates. Examine the conformance status for PES51, PSE52, and PSE53. Get a comprehensive overview of the POSIX API's expected state at LTSv3 release. Delve into forward-looking strategies, considering safety-critical applications and potential certification challenges. Discuss simplification strategies for products utilizing both Linux and Zephyr, aimed at enhancing developer experience and streamlining common use cases.