A lightboard-style setup without the lightboard. All you need is an ipad, a stylus, and OBS. Thanks @rithvikra0 for the idea! #EconTwitter
1. connect iPad to mac via USB-C.
2. open sketch software with dark background.
3. add ipad as video source in OBS.
4. add crop and chromakey filters, choose custom color equal to background.
5. tweak to taste.
6. overlay on webcam video source.
7. write!
2. open sketch software with dark background.
3. add ipad as video source in OBS.
4. add crop and chromakey filters, choose custom color equal to background.
5. tweak to taste.
6. overlay on webcam video source.
7. write!
here are some chroma key settings that work well with the dark background on goodnotes. 
a better method: use Luma Key instead of Chroma Key! crisper text, no limits on colors. I use a dark goodnotes background and write with light colors. But you could use a light background and write with dark colors. settings here.
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