try Vectr online simple 2D CAD platform. Or cuttle
I'm a Fusion person but have you tried TinkerCAD ? Or OpenSCAD if you are comfortable with that ?
https://www.flr.is/_files/ugd/0ebced_1bd42ec7d77140aea1e74aec7377078f.pdf If anyone is curios this is the English version of the recipe book for the laser and vinyl cutter, working in Inkscape for beginners
Good example of a website: https://fabacademy.org/2022/labs/leon/students/luis-diazfaes/
An example of the XIAO http://fabacademy.org/2020/labs/leon/students/adrian-torres/fabxiao.html
esp32 are around 300ish
newer ESP32-C3e have 32Mb's if i recall correctly https://www.digikey.pt/pt/products/detail/seeed-technology-co-ltd/113991054/16652880 (the XIAOs "only" have 4Mb)
Regarding Git This website has many resources https://www.gitkraken.com/learn/git
https://fabacademy.org/2022/labs/fct/students/ricardo-marques/assignments/week02/ i can probably recommend my documentation for git. I had some issues with the Windows Store and SSH certificate configuration that you might also have. Plus a few links to tutorials
Rico: