2022
Devoxx - Subramaniam - Exception Handling in Functional and Reactive Programmin of 2:29:17
    https://www.youtube.com/watch?v=S5tLVsvbHBg
Devoxx - Subramaniam - Design Patterns Revisited in Modern Java of 2:38:39
    https://www.youtube.com/watch?v=yTuwi--LFsM