ppy/osu ? reverse-engineered prompt

I want to build a modern, cross-platform rhythm game inspired by osu!, specifically the newer "lazer" version. The main idea is a free-to-win game where players click, slide, and spin on-screen elements in time with the music. It needs to run on all major desktop platforms—Windows, macOS, and Linux—and also have mobile versions for iOS and Android.

Please include the four main built-in game modes: the standard mode, a "Taiko" drum-style mode, a "Catch" mode where you catch falling fruit, and a "Mania" mode that works like a vertical scrolling piano. A really important feature is that the whole system should be modular, so other developers can create and plug in their own custom game modes, or "rulesets," later on. The overall vibe should be clean, sharp, and futuristic.