Planned features

Gameplay rendering

• Other spinner textures (currently only the spinner approach circle is rendered)
• Note lock indicator (probably just a shake animation like in osu!)
• Improve performance
• Option to disable hit circle explosion animation

Gameplay audio

• Hit sounds and other effect sounds (such as combo breaking)
• Fix audio off sync issue somehow

Analysis tools

• Key hit overlay + note sheet combined
• Edge hits detection
• Heat map (maybe using heatmap.js)

Gameplay simulation

This refers to the very fast heuristic algorithm that allows simulating the game play (even longer ones) within a second:

• Setup test automation
• Spinner simulation (currently it's always judged as 300 regardless you missed or not)
• Fix double tap bug
• Fix certain edge cases

Lower priority:

• RX support
• ScoreV2 support
• pp-related stuff

Others

• Jumping to next "combo break" (miss / slider break) event as a shortcut or similar
• Full screen
• Generating small clips (.mp4)
• (?) Discord Bot for generating small clips / images