How to model versioned data with @std-toolkit/eschema — evolving schemas, value evolving schemas, composition via toSchema, and the package's best practices (NullOr over optional, total migrations, frozen v1, non-isolation). Use when writing or reviewing code that defines, evolves, nests, encodes, or decodes an ESchema / ValueESchema, or when choosing how to version a persisted shape.
Author a smooth, step-by-step animation with the sequence block. Use when building a new sequence scene/slideshow, or when a sequence animation feels janky. Encodes the speed, preset, presence, and structure rules the polished demos follow.