Internals for Interns

Welcome! This is a blog about how things work under the hood. If you’ve ever wondered what happens when your code runs, how databases execute queries, or what compilers do with your source code, you’re in the right place.

I write deep dives into software internals—covering programming languages, compilers, databases, filesystems, and more—but with a twist: I aim to make complicated internal behaviors look simple. These aren’t exhaustive references; they’re approachable overviews that give you just enough understanding to appreciate the clever engineering behind the tools you use every day.

What to expect: Posts here explore topics like Go’s compiler phases (lexer, parser, SSA), Python’s object model and garbage collection, database query execution, filesystem structures, and runtime behaviors like memory allocation and goroutines. Each post takes a concrete example (like a “hello world” program) and walks through what happens internally.

Publishing cadence: I publish a new post every week, diving deep into a different aspect of software internals with each article.

Whether you’re a student, an intern, or a seasoned developer curious about the internals you don’t usually need to think about, I hope these posts give you those “aha!” moments that make programming even more fascinating.