Best Courses or Sites to Learn iOS Development?

Question

iOS

Good day to all! There was a desire to devote himself to development for iOS. I bought Usov's book on SWift, I bought an iPhone 6s Plus in order to see what applications are being developed for iOS and use it as an emulator, I want to take a mackbook this week and
start writing code, the question for you is the following, what are some good courses or sites that can help a lot to fill the baggage of knowledge, paid courses are also possible if they are worth it. So far I have found a video by Alexei Skutarenko, swiftbook.ru from the standing one. Also a poppy question, is core i5 2x1.8, 8 fab ram, 128 ssd suitable for development?

Answer 1

Here is a very good course.
You can search cuosera for their first free block to see if it's worth it or not.

Answer 2

https://t.me/iOSBook there are books for beginners and not only, both in Russian and in English, it can come in handy