[starkparker]

If this is exciting and you don't need the EMR stylus but you want a project instead of a product for a Macbook: https://www.aliexpress.us/item/3256805921231769.html

If this is exciting because of the EMR stylus but you want a project instead of a product for a Macbook: https://news.ycombinator.com/item?id=46537489, https://www.youtube.com/watch?v=igVscvWAR1s