A couple of reads and a couple of watches.
Nice series of articles (not yet finished) on implementing transactional logic in a distributed system without resorting to the traditional SQL distributed transactions.
Excellent thorough article on testing anti-patterns, technology stack agnostic, with valuable information to make sure we get the most out of our tests.
Nice talk on distributed systems, problems that might arise and ways of to figure them out.
Interesting talk on a real world example of using the actor model in .NET with Akka.NET and it’s clustering module.