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📰 Dev.to · Valentyn Kit

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You don't understand a system until you've rebuilt it

Dev.to · Valentyn Kit 🔧 Backend Engineering ⚡ AI Lesson 1mo ago

You don't understand a system until you've rebuilt it

Using a system teaches its interface and reading its source teaches its mechanics. Only rebuilding a worse version teaches the constraints, which is where under

Rust's compile errors are other languages' production bugs

Dev.to · Valentyn Kit 🧠 Large Language Models ⚡ AI Lesson 1mo ago

Rust's compile errors are other languages' production bugs

Four Rust compiler refusals, each traced to the silent bug it prevents in Python, JavaScript, or C. Plus the one place Rust stays quiet.

Rebuilding my C Redis clone in Rust taught me more Rust than any tutorial

Dev.to · Valentyn Kit 🔧 Backend Engineering ⚡ AI Lesson 1mo ago

Rebuilding my C Redis clone in Rust taught me more Rust than any tutorial

I built a small Redis clone in C: a RESP parser, a command table, an append-only file for...

Adding io::ErrorKind::TooManyOpenFiles to Rust

Dev.to · Valentyn Kit 🔧 Backend Engineering ⚡ AI Lesson 1mo ago

Adding io::ErrorKind::TooManyOpenFiles to Rust

This is my second merged contribution to rust-lang, and like the first it lives in the low-level I/O...

Framework knowledge evaporates. Low-level knowledge compounds.

Dev.to · Valentyn Kit 🔧 Backend Engineering ⚡ AI Lesson 1mo ago

Framework knowledge evaporates. Low-level knowledge compounds.

I learned async three times before it stuck. C# Tasks. Go goroutines. Rust tokio. Each time I was...