My previous company is building DRAG and DROP builder for compose. Its called kompowz , it is build using compose web js IR right now.. if someone think this is good and want to check it you can signup at
kompowz.me . Also I can provide link to the alpha of the editor but it still generates not great code, its super early alpha, some import packages are missing and Color for example as modifier is not actually set properly in the generated code and so on, but there are 20+ components, you can wrap in columns and rows, drag and move around, change properties and modifiers (together with the modifiers order)
Still if there is interest the company wont cancel the project. The reason I am asking is there is not much interest so.. 🙂 yeah 😆