// writing
I moved my side projects off a t2.micro onto a t4g.micro behind CloudFront, then hit six distinct bugs before it fully worked again. This is a record of the move itself and each bug: what the error actually said, what the root cause turned out to be, and the fix.
Moving static sites off a single EC2 instance and onto CloudFront + S3, then building a budget-triggered Lambda to shut down CDNs before costs spike.
LLMs can write in any language. The skill that separates engineers now is knowing design patterns and when to apply them, especially in agentic software development.
A side project I run alone uses one database for everything a backend usually spreads across a queue, a cache, a document store, an auth service, and a warehouse. Here is why, what it costs, and where it stops working.