u/SimpleIronicUsername

Hi I am a college student learning pcb design and I have seen a few people that designed their own Arduino boards on this reddit in the past. I was wondering if anyone knows the best resources for attempting this myself using Altium Designer? I found one open source project on Github but half of the components used on that project are obsolete or not available directly in Altium. If anyone has personal experience with doing this I'd love some input, thanks!