Harmonica

Harmonica is a Go animation library based on simple physics simulation. It provides tools for creating smooth, natural motion in 2D and 3D applications. The project includes spring animation behavior that can make interface movement feel more organic than fixed linear transitions. It also includes projectile-style simulation that is useful for particles, motion effects, and game-like interactions. Harmonica can be used with terminal interfaces, Bubble Tea applications, and graphical projects that need realistic movement. Its main value is giving Go developers a small, efficient way to add physically inspired animation without building the math from scratch.