Mach, a new systems programming language focused on explicit behavior and zero hidden magic, has reached full self-hosting status. The project eliminates external dependencies like LLVM and libc from its toolchain, requiring only a C compiler during its initial bootstrap phase which has now been retired.

Creator octalide designed Mach with unwavering principles: simplicity, explicitness, and long-term maintainability take precedence over convenience or flexibility. The language enforces verbose, WYSIWYG coding practices that strip away ambiguity and prevent clever shortcuts that complicate future maintenance.

Performance currently trails C by roughly 4x, primarily due to incomplete compiler optimizations like autovectorization. However, the foundation prioritizes clarity over raw speed, drawing inspiration from C, Zig, Go, and Rust while addressing common footguns in those ecosystems.

After more than two years of development, Mach offers a compelling alternative for developers seeking a C replacement that demands intentional, readable code. The project welcomes contributors and provides Discord access for community engagement. Early adopters can explore the language through example repositories and scaffold new projects with built-in tooling.