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

Debug build

A build with no optimization and full debug information, for development.

A Debug configuration turns optimization off and emits debug information so a debugger can map machine code back to source lines and variables; it runs slower than Release.