20 random bookmarks

2025-09-29

135.

stupid jj tricks

andre.arko.net/2025/09/28/stupid-jj-tricks

Welcome to “stupid jj tricks”. Today, I’ll be taking you on a tour through many different jj configurations that I have collected while scouring the internet. Some of what I’ll show is original research or construction created by me personally, but a lot of these things are sourced from blog post, gists, GitHub issues, Reddit posts, Discord messages, and more.

2025-08-29

131.

You no longer need JavaScript

lyra.horse/blog/2025/08/you-dont-need-js

An overview of what makes modern CSS so awesome.

2025-06-12

116.

Always do Extra

www.bennorthrop.com/Essays/2021/always-do-extra.php

Extra is different than More. Extra is finishing those two screens, but then researching a new library for form validation that might reduce the boilerplate code. Or it's learning ways to protect against common security vulnerabilities from data entry. These little off-ramps from the main highway of Normal Work could be dead-ends and not have any practical value to the project. But they might also be important contributions. And that's the thing with Extra. While the tangible value to the project is uncertain (it could be nothing this time or it could be something), the value to you is real.

2025-05-15

109.

Speculation in JavaScriptCore

webkit.org/blog/10308/speculation-in-javascriptcore

This post is all about speculative compilation, or just speculation for short, in the context of the JavaScriptCore virtual machine.

108.

Writing that changed how I think about PL

bernsteinbear.com/blog/pl-writing

Every so often I come across a paper, blog post, or (occasionally) video that completely changes how I think about a topic in programming languages and compilers. For some of these posts, I can’t even remember how I thought about the idea before reading it—it was that impactful.

2024-12-17

92.

Building GBA Games in Rust

shanesnover.com/2024/02/07/intro-to-rust-on-gba.html

2024-11-20

88.

On "Safe" C++

izzys.casa/2024/11/on-safe-cxx

2024-10-24

85.

Rust Prism

registerspill.thorstenball.com/p/rust-prism

2024-08-28

69.

There can't be only one

www.b-list.org/weblog/2024/aug/27/highlander-problem

There's a concept that I've heard called by a lot of different names, but my favorite name for it is …

2024-06-26

53.

A reckless introduction to Hindley-Milner type inference

reasonableapproximation.net/2019/05/05/hindley-milner.html

2024-06-24

51.

Deriving Dependently-Typed OOP from First Principles -- Extended Version with Additional Appendices

arxiv.org/abs/2403.06707

The expression problem describes how most types can easily be extended with new ways to produce the type or new ways to consume the type, but not both. When abstract syntax trees are defined as an algebraic data type, for example, they can easily be extended with new consumers, such as print or eval, but adding a new constructor requires the modification of all existing pattern matches. The expression problem is one way to elucidate the difference between functional or data-oriented programs (easily extendable by new consumers) and object-oriented programs (easily extendable by new producers). This difference between programs which are extensible by new producers or new consumers also exists for dependently typed programming, but with one core difference: Dependently-typed programming almost exclusively follows the functional programming model and not the object-oriented model, which leaves an interesting space in the programming language landscape unexplored. In this paper, we explore the field of dependently-typed object-oriented programming by deriving it from first principles using the principle of duality. That is, we do not extend an existing object-oriented formalism with dependent types in an ad-hoc fashion, but instead start from a familiar data-oriented language and derive its dual fragment by the systematic use of defunctionalization and refunctionalization. Our central contribution is a dependently typed calculus which contains two dual language fragments. We provide type- and semantics-preserving transformations between these two language fragments: defunctionalization and refunctionalization. We have implemented this language and these transformations and use this implementation to explain the various ways in which constructions in dependently typed programming can be explained as special instances of the phenomenon of duality.

2024-06-21

49.

On testing Go code using the standard library | Henrique Vicente

henvic.dev/posts/testing-go

Most programming language ecosystems provide assert functions in their testing libraries but not Go's. Go's standard testing package follows a more direct and to-the-point approach.

2024-06-20

46.

Why does SQLite (in production) have such a bad rep?

avi.im/blag/2024/sqlite-bad-rep

2024-06-19

42.

Pimalaya

pimalaya.org

Official website of the Pimalaya project.

2024-06-17

36.

How I learned Haskell in just 15 years - duckrabbit solutions

duckrabbit.tech/articles/learning-haskell.html

2024-06-14

31.

CAUSAL.AGENCY(7)

causal.agency

I make mostly IRC software in C. I like OpenBSD but also the GPL. I just want to read books and try to learn to be kinder. When I can I'd like to talk to strangers and experience more magic.

29.

pounce - IRC bouncer

git.causal.agency/pounce/about

2024-06-13

22.

API Tokens: A Tedious Survey

fly.io/blog/api-tokens-a-tedious-survey

Comparison between types of API tokens.

2024-06-12

13.

My experience crafting an interpreter with Rust

ceronman.com/2021/07/22/my-experience-crafting-an-interpreter-with-rust

Last year I finally decided to learn some Rust. The official book by Steve Klabnik and Carol Nichols is excellent, but even after reading it and working on some small code exercises, I felt that I …

2024-06-11

10.

Self-serve dashboards

briefer.cloud/blog/posts/self-serve-bi-myth

Sales pitches are the only place where “self-serve dashboards" work. In the real world, it's a different story.

Why "business" people don't use metabase/power-bi.