Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

musl

A small C standard library that lets Rust build fully static Linux programs.

The x86_64-unknown-linux-musl target links against musl libc statically, producing binaries that run on any Linux without the host's glibc version.

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