CloudABI is an
application binary interface based on capsicum. It keeps the overall capsicum permission model, but uses it to redesign a simplified environment for processes (system calls, C library, etc.) to run on, so that programs become portable to any platform supporting the ABI on the same
instruction set architecture. The interface it offers is roughly
POSIX minus parts that do not work with capability-based security. , CloudABI is natively a part of
FreeBSD, and it can be run on other systems either via a Capsicum-based patch or using a non-secure
system call emulator. As of October 2020, CloudABI has been deprecated in favor of
WebAssembly System Interface for lack of interest. == References ==