Constraint-based layout using the Cassowary algorithm seemed like a popular alternative for a while (see https://github.com/slightlyoff/cassowary.js/?tab=readme

Constraint-based layout using the Cassowary algorithm seemed like a popular alternative for a while (see https://github.com/slightlyoff/cassowary.js/?tab=readme-ov-file https://github.com/slightlyoff/cassowary.js/?tab=readme-ov-f...). It’s designed to solve for variance in screen size and shape. Apple switched to Swift UI and may have moved on from this approach.