Contributed targeted documentation improvements to the bevyengine/bevy repository, focusing on clarifying the execution order of StateTransition in relation to PreStartup within the Bevy game engine. Leveraging expertise in Rust and game development, the work addressed misleading guidance in the Main schedule documentation, consolidating and refining instructions to ensure developers can reliably initialize systems before game logic executes, regardless of state. By providing explicit, actionable guidance, these updates reduced onboarding time and minimized startup misconfigurations for new users. The changes, delivered through two commits, enhanced the reliability and predictability of startup workflows, supporting both developer productivity and project maintainability.