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.

2025-08-21

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.

2025-07-31

127.

A dive into open chat protocols

wiki.alopex.li/ADiveIntoOpenChat

2025-05-23

112.

Async from scratch 1: What's in a Future, anyway? | natkr's ramblings

natkr.com/2025-04-10-async-from-scratch-1

There are a lot of guides about how to use async Rust from a "user's
perspective", but I think it's also worth understanding how it
works, what those async blocks actually mean.

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.

2025-03-18

102.

CASCII - ASCII Diagram Builder

cascii.app

A well-equipped ASCII diagram builders freely available on the internet.
It stresses portability, simplicity, and immediateness.

2024-10-24

85.

Rust Prism

registerspill.thorstenball.com/p/rust-prism

2024-10-21

84.

init.py files are optional. Here’s why you should still use them

dev.arie.bovenberg.net/blog/still-use-init-py

2024-10-16

83.

Damas-Hindley-Milner inference two ways

bernsteinbear.com/blog/type-inference

2024-10-04

80.

Snappy UI Optimization with useDeferredValue

www.joshwcomeau.com/react/use-deferred-value

useDeferredValue is one of the most underrated React hooks. It allows us to dramatically improve the performance of our applications in certain contexts. I recently used it to solve a gnarly performance problem on this blog, and in this tutorial, I'll show you how! ⚡

2024-09-17

75.

Master hexagonal architecture in Rust

www.howtocodeit.com/articles/master-hexagonal-architecture-rust

Everything you need to write flexible, future-proof Rust applications using hexagonal architecture.

2024-08-14

65.

A Flexible Minimalist Neovim for 2024

wickstrom.tech/2024-08-12-a-flexible-minimalist-neovim.html

2024-08-09

64.

Store Code Discussions in Git using Git Notes

wouterj.nl/2024/08/git-notes

Code discussions contain relevant information. Isn’t it a shame that we
keep these in the centralized GitHub/GitLab servers, far away from our
decentralized Git code? As soon as we move provider, we’ll lose all old
discussions! And how do you ever find the pull requests back from 5
years ago? Symfony has implemented a lightweight solution to this problem
years ago using a less-known feature of Git: Git Notes.

2024-07-03

59.

Announcing wcurl: a curl wrapper to download files

samueloph.dev/blog/announcing-wcurl-a-curl-wrapper-to-download-files

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

47.

Go's 'range over function' iterators and avoiding iteration errors

utcc.utoronto.ca/~cks/space/blog/programming/GoIteratorsAndAvoidingMistakes

2024-06-19

44.

Aurora - Python Static Site Generator

aurora.jamesg.blog

Aurora: An extensible, Python-based static site generator.

2024-06-18

41.

Comparing Objective Caml and Standard ML

adam.chlipala.net/mlcomp

2024-06-13

27.

Category Theory for Programmers: The Preface

bartoszmilewski.com/2014/10/28/category-theory-for-programmers-the-preface

2024-06-11

11.

Optimizing Font Files for the Modern Web

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