Hacker News with Generative AI: POSIX

RTEMS: Open-source real time operating system (rtems.org)
RTEMS is an open source Real Time Operating System (RTOS) that supports open standard application programming interfaces (API) such as POSIX.
Towards userspaceification of POSIX – part I: signal handling and IO (redox-os.org)
POSIX 2024 changes (sortix.org)