Harmonica
A simple, physics-based animation library
...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.