Do the simplest thing that could possibly work
When designing software systems, do the simplest thing that could possibly work. It’s surprising how far you can take this piece of advice. I genuinely think you can do this all the time. You can follow this approach for fixing bugs, for maintaining existing systems, and for architecting new ones. A lot of engineers design by trying to think of the “ideal” system: something well-factored, near-infinitely scalable, elegantly distributed, and so on. I think this is entirely the wrong way to go about software design. Instead, spend that time understanding the current system deeply, then do the simplest thing that could possibly work. Simple can be underwhelming System design requires competence with a lot of different tools: app servers, proxies, databases, caches, queues, and so on….
