20 random bookmarks

2025-10-17

136.

Automerge

automerge.org

Automerge is a local-first sync engine for multiplayer apps that works offline, prevents conflicts, and runs fast.

2025-08-25

130.

Everything I know about good API design

www.seangoedecke.com/good-api-design

2025-08-21

129.

A Brief Guide to A Few Algebraic Structures

argumatronic.com/posts/2019-06-21-algebra-cheatsheet.html

I started writing this post because, for whatever reason, I keep forgetting what the difference is between a ring and a group, which is funny to me because I never forget the difference between a semiring and a semigroup – although other people do, because it’s quite easy to forget! So, I wanted a fast reference to the kinds of algebraic structures that I am most often dealing with in one way or another, usually because I’m writing Haskell (which has some reliance on terminology and structure from abstract algebra and category theory) or I’m trying to read a book about category theory and they keep talking about “groups.” Wikipedia, of course, defines all these structures, and that’s fine, but what I need in those times is more of a refresher than an in-depth explanation.

2025-06-18

121.

You can use `fzf` to review git commits

jvns.ca/til/fzf-preview-git-commits

I just learned that
you can use it to review a git commit like this and I thought that was really
cool.

2025-06-13

117.

What I talk about when I talk about IRs

bernsteinbear.com/blog/irs

I have a lot of thoughts about the design of compiler intermediate representations (IRs). In this post I’m going to try and communicate some of those ideas and why I think they are important.

2025-05-23

110.

honk

humungus.tedunangst.com/r/honk

Take control of your honks and join the federation.
An ActivityPub server with minimal setup and support costs.
Spend more time using the software and less time operating it.

2025-04-24

105.

Instrumenting Axum projects

determinate.systems/posts/instrumenting-axum

2025-04-04

104.

Pitfalls of Safe Rus

corrode.dev/blog/pitfalls-of-safe-rust

When people say Rust is a “safe language”, they often mean memory safety.
And while memory safety is a great start, it’s far from all it takes to build robust applications.
Memory safety is important but not sufficient for overall r…

2025-01-21

99.

Algebraic Effects for the Rest of Us

overreacted.io/algebraic-effects-for-the-rest-of-us

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

2024-06-28

57.

Advanced Bash-Scripting Guide

tldp.org/LDP/abs/html/index.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.

2024-06-20

46.

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

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

2024-06-18

41.

Comparing Objective Caml and Standard ML

adam.chlipala.net/mlcomp

2024-06-17

35.

OpenBSD, the computer appliance maker's secret weapon

hiandrewquinn.github.io/til-site/posts/openbsd-the-computer-appliance-maker-s-secret-weapon

Between our ESP32 prokaryotic organisms and our 24/7 Internet-enabled megafauna servers, there exists a vast and loosely-defined ecosystem of things the B2B world likes to call computer appliances. Picture a bespoke Pi 4 packaged up neatly with some Python scripts, a little fancy plastic embossing, and maybe a well-guarded id_ed25519.pub in case you end up in hot water during the (long - very long, stable cash flow for generations long) maintenance contract, and you’re in the ballpark.

2024-06-13

22.

API Tokens: A Tedious Survey

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

Comparison between types of API tokens.

16.

Avoid Linux locking up in low memory situations using earlyoom

dataswamp.org/~solene/2022-09-28-earlyoom.html

This article presents the program earlyoom to prevent a Linux system to lock up in low memory situations.

15.

OpenBSD extreme privacy setup

dataswamp.org/~solene/2024-06-08-openbsd-privacy-setup.html

In this article, you will learn how to install and configure OpenBSD to reduce its network activity over clearnet

2024-06-11

11.

Optimizing Font Files for the Modern Web

documentation.platformos.com/best-practices/performance/optimizing-font-files