Docker https://www.youtube.com/watch?v=tQ8F7d2VACU Enviroment variables https://www.twilio.com/blog/2017/01/how-to-set-environment-variables.html Authentication/Authorization JWT (https://www.youtube.com/watch?v=vQldMjSJ6-w). 3 parts Cookie (https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies) Nodejs https://www.youtube.com/watch?v=MXqKatH5Lw4 https://nodejs.org/ru/docs/guides/ Patterns DI (https://www.youtube.com/watch?v=3NgWwzwDeTQ) Git The most popular/useful flows https://www.atlassian.com/git/tutorials/comparing-workflows/gitflow-workflow https://www.atlassian.com/continuous-delivery/continuous-integration/trunk-based-development