posix

A comprehensive guide explaining the differences and relationships between terminals, shells, TTYs, consoles, and related concepts like POSIX and ANSI escape codes, including hands-on TUI creation.

ZeroFS is a log-structured filesystem that serves S3-compatible buckets as POSIX filesystems over NFS and 9P, or as raw block devices, with compression, encryption, and local caching for fast reads. It passes extensive POSIX and stress test suites, including kernel builds and Jepsen failover testing.

This article argues that POSIX is a specification, not a program, and that shell implementations such as bash and dash behave differently even for basic commands like echo. It calls for testing across multiple shells rather than relying on the notion of 'POSIX compliance' for portability.

Spork is a C library that provides a posix_spawn-based alternative to fork, offering better performance and safety for process creation.