Decker builds on the legacy of HyperCard and MacPaint, and utilizes an interesting little language (<a href="https://beyondloom.com/decker/lil.html" rel="nofollow">https://beyondloom.com/decker/lil.html</a> 2022 HN discussion: <a href="https://news.ycombinator.com/item?id=33393283">https://news.ycombinator.com/item?id=33393283</a>)