Hi, I'm Zack and I like building things. I spend a lot of time architecting abstractions, or deconstructing them to reveal the underlying truth about how systems and computers work. It gives me this hit of dopamine that I can't quite get anywhere else.https://zackoverflow.dev/en-ushttps://zackoverflow.dev/writing/template-interpreters/https://zackoverflow.dev/writing/template-interpreters/A look at an under-discussed style of interpreter used by V8 and Hotspot.Sat, 08 Nov 2025 00:00:00 GMThttps://zackoverflow.dev/writing/how-often-does-python-allocate/https://zackoverflow.dev/writing/how-often-does-python-allocate/The answer is "very often"Thu, 30 Oct 2025 00:00:00 GMThttps://zackoverflow.dev/writing/i-spent-181-minutes-waiting-for-the-zig-compiler-this-week/https://zackoverflow.dev/writing/i-spent-181-minutes-waiting-for-the-zig-compiler-this-week/TLDR; The Zig compiler takes about 1 minute and 30 seconds to compile debug builds of Bun. Zig's language server doesn't do basic things like type-checking, so often have to run the compiler to see if my code works.Thu, 06 Mar 2025 00:00:00 GMThttps://zackoverflow.dev/writing/flappy-bird-in-type-level-typescript/https://zackoverflow.dev/writing/flappy-bird-in-type-level-typescript/The ultimate type-level trickeryThu, 19 Oct 2023 00:00:00 GMThttps://zackoverflow.dev/writing/how-to-actually-write-c/https://zackoverflow.dev/writing/how-to-actually-write-c/How to actually write non-trivial programs in CThu, 21 Sep 2023 00:00:00 GMThttps://zackoverflow.dev/writing/write-your-own-zod/https://zackoverflow.dev/writing/write-your-own-zod/Write your own Zod from scratchTue, 29 Aug 2023 00:00:00 GMThttps://zackoverflow.dev/writing/unsafe-rust-vs-zig/https://zackoverflow.dev/writing/unsafe-rust-vs-zig/There are endless debates online about Rust vs. Zig, this post explores a side of the argument I don't think is mentioned enough.Tue, 07 Mar 2023 00:00:00 GMThttps://zackoverflow.dev/writing/hacking-go-to-give-it-sumtypes/https://zackoverflow.dev/writing/hacking-go-to-give-it-sumtypes/I want sum types, so let's eschew all idiomatic Go code and best practices to hack the language and add themThu, 02 Mar 2023 00:00:00 GMThttps://zackoverflow.dev/writing/the-worst-word/https://zackoverflow.dev/writing/the-worst-word/Wed, 15 Feb 2023 00:00:00 GMThttps://zackoverflow.dev/writing/ffmpeg-guide/https://zackoverflow.dev/writing/ffmpeg-guide/An IDE/GUI for ffmpeg commandsFri, 18 Nov 2022 00:00:00 GMThttps://zackoverflow.dev/writing/dragon-book/https://zackoverflow.dev/writing/dragon-book/Slaying the dragonSun, 07 Aug 2022 00:00:00 GMThttps://zackoverflow.dev/writing/nominal-and-refinement-types-typescript/https://zackoverflow.dev/writing/nominal-and-refinement-types-typescript/Sat, 23 Jul 2022 00:00:00 GMThttps://zackoverflow.dev/writing/foundations-of-game-engine-development-volume-1-mathematics/https://zackoverflow.dev/writing/foundations-of-game-engine-development-volume-1-mathematics/Mon, 13 Jun 2022 00:00:00 GMThttps://zackoverflow.dev/writing/influence-of-fp-on-the-mainstream/https://zackoverflow.dev/writing/influence-of-fp-on-the-mainstream/Just how much of mainstream programming has been influenced by FP?Fri, 01 Apr 2022 00:00:00 GMThttps://zackoverflow.dev/writing/premature-abstraction/https://zackoverflow.dev/writing/premature-abstraction/Rambling about abstractionsTue, 22 Feb 2022 00:00:00 GMThttps://zackoverflow.dev/writing/tapl/https://zackoverflow.dev/writing/tapl/A surprisingly fun read on type systems and programming languagesTue, 22 Feb 2022 00:00:00 GMThttps://zackoverflow.dev/writing/tyty/https://zackoverflow.dev/writing/tyty/TLDR; I'm making a Typescript type-checker in Rust. Right now it supports a smaller subset of the type-system and exists as a fun side-project, but the end goal is a compilation tool we can use to make Typescript compilation go brrrr...Fri, 21 Jan 2022 00:00:00 GMThttps://zackoverflow.dev/writing/sicp-taking-a-break/https://zackoverflow.dev/writing/sicp-taking-a-break/Tue, 04 Jan 2022 00:00:00 GMThttps://zackoverflow.dev/writing/go-generics-static-dispatch/https://zackoverflow.dev/writing/go-generics-static-dispatch/Interfaces rely on slow dynamic-dispatch, but generics could open the door to performance boosts with the ability to leverage the cache-friendliness of static dispatchWed, 15 Dec 2021 00:00:00 GMThttps://zackoverflow.dev/writing/sicp-modularity-objects-and-state/https://zackoverflow.dev/writing/sicp-modularity-objects-and-state/Notes/musings on the third chapter, currently in-progressThu, 02 Dec 2021 00:00:00 GMThttps://zackoverflow.dev/writing/sicp-building-abstractions-with-data/https://zackoverflow.dev/writing/sicp-building-abstractions-with-data/Notes on the second chapterMon, 22 Nov 2021 00:00:00 GMThttps://zackoverflow.dev/writing/implementing-syntax-highlighting/https://zackoverflow.dev/writing/implementing-syntax-highlighting/Using Tree-sitter to add syntax highlighting to my personal code editor, Glyph.Fri, 19 Nov 2021 00:00:00 GMThttps://zackoverflow.dev/writing/wasm-bring-your-own-language/https://zackoverflow.dev/writing/wasm-bring-your-own-language/Exploring the ways WASM can replace domain-specific languagesThu, 11 Nov 2021 00:00:00 GMThttps://zackoverflow.dev/writing/sicp-building-abstractions-with-procedures/https://zackoverflow.dev/writing/sicp-building-abstractions-with-procedures/Notes on the first chapterFri, 05 Nov 2021 00:00:00 GMThttps://zackoverflow.dev/writing/the-problem-with-typescript/https://zackoverflow.dev/writing/the-problem-with-typescript/Typescript is an amazing project, but a perplexing open-source blackboxThu, 21 Oct 2021 00:00:00 GMThttps://zackoverflow.dev/writing/glyph/https://zackoverflow.dev/writing/glyph/My own personal text editor built with Rust + OpenGLTue, 19 Oct 2021 00:00:00 GMT