2021
Spring Microservices in Action, Second Edition, Video Edition
    https://dlcourse.org/spring-microservices-in-action-2nd-edition-video-edition/
    magnet:?xt=urn:btih:95400ffb6732a7f65dc87320a2cd435de1915c80
    ! 3.90g, 80 parts, no live coding
Jetbulb - Spring Framework for Beginners ru of 5 parts
    https://www.youtube.com/playlist?list=PLxqzxxW1gWwIuSgG8od6N4LZg5V4kKp72
    https://github.com/jetbulb/spring-overview/branches/all
    https://github.com/jetbulb/spring-overview/tree/beans/xml/lesson-1
Udemy - JohnThompson - Spring Framework 5 Beginner to Guru
    https://freecoursesite.com/spring-framework-5-beginner-to-guru-18/
    magnet:?xt=urn:btih:30eb2846659b6b7ec7b2621077bbd42cf070498c
    ! 8.41g a lot of stuff incl boot, jpa, mvc, rest, mysql, mongo, ...
[Udemy] [Dzianis Matveyenka] Spring (2021)
    magnet:?xt=urn:btih:898078c8df892c8ac23945c79df7e480c35c626d
    ! 3.33g, good, basic, incl boot
2018
Udemy - Spring Core Advanced - Beyond the Basics
    https://freecoursesite.com/1-spring-core-advanced-beyond-the-basics/
    magnet:?xt=urn:btih:b9781b6a2961d6d5768c391655d81d54b964f0f5
    magnet:?xt=urn:btih:f5b1175cc273655251d592202f34e68f2f701e83
    ! 3.85g, too short chapters