glimm — color-sweep page transitions

glimm plays a band of WebGL color across the viewport during navigation: the outgoing page stays ahead of the band, the incoming page is revealed behind it (a masked page transition). Framework-agnostic core with React and Next.js adapters. Zero runtime dependencies, MIT.

This skill works with any glimm version. Before writing code, check which version the project resolves (npm ls glimm, or the installed node_modules/glimm/package.json) and treat the installed package as the source of truth: confirm each export you use exists in its type definitions (node_modules/glimm/dist/*.d.ts). If an API below is missing or named differently there, follow the installed version and its changelog on https://glimm.dev/changelog rather than the recipe. On a fresh install, prefer npm install glimm@latest.