https://ocw.mit.edu/courses/mas-s62-cryptocurrency-engineering-and-design-spring-2018/
https://ocw.mit.edu/courses/15-s12-blockchain-and-money-fall-2018/
https://www.youtube.com/c/BlockchainatBerkeley
https://ethereum.org/en/learn/
https://cryptocurrencyclass.github.io/
https://www.ardanlabs.com/education/
https://github.com/ardanlabs/blockchain
https://github.com/ardanlabs/blockchain/blob/main/.documentation/reading/README.md