20 random bookmarks

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

2025-05-28

114.

SAT Live!

localhost:4000

2024-12-17

93.

GBA From Scratch With Ferris

lokathor.github.io/gba-from-scratch

2024-11-07

87.

Proposal for a Django project template

david.guillot.me/en/posts/tech/proposal-for-a-django-project-template

My take on what could be a project template for Django advanced usage, with modern tooling (for Python and UI dependencies, as well as configuration/environment management), but not too opinionated.

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! ⚡

2024-09-19

77.

Blogging in Djot instead of Markdown

www.jonashietala.se/blog/2024/02/02/blogging_in_djot_instead_of_markdown

2024-09-18

76.

Typescript is surprisingly ok for compilers

matklad.github.io/2023/08/17/typescript-is-surprisingly-ok-for-compilers.html

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 …

2024-08-09

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.

2024-06-26

55.

A (more) Modern CSS Reset

piccalil.li/blog/a-more-modern-css-reset

2024-06-24

52.

Counting Immutable Beans: Reference Counting Optimized for Purely Functional Programming

arxiv.org/abs/1908.05647

Most functional languages rely on some garbage collection for automatic memory management. They usually eschew reference counting in favor of a tracing garbage collector, which has less bookkeeping overhead at runtime. On the other hand, having an exact reference count of each value can enable optimizations, such as destructive updates. We explore these optimization opportunities in the context of an eager, purely functional programming language. We propose a new mechanism for efficiently reclaiming memory used by nonshared values, reducing stress on the global memory allocator. We describe an approach for minimizing the number of reference counts updates using borrowed references and a heuristic for automatically inferring borrow annotations. We implemented all these techniques in a new compiler for an eager and purely functional programming language with support for multi-threading. Our preliminary experimental results demonstrate our approach is competitive and often outperforms state-of-the-art compilers.

50.

Microfeatures I Love in Blogs and Personal Websites

danilafe.com/blog/blog_microfeatures

In this post, I talk about pleasant but seemingly minor features in personal sites

2024-06-17

36.

How I learned Haskell in just 15 years - duckrabbit solutions

duckrabbit.tech/articles/learning-haskell.html

2024-06-14

33.

A useful shell prompt

blog.meain.io/2022/my-shell-prompt

Featureful zsh prompt.

2024-06-13

21.

Building Go programs with Nix Flakes

xeiaso.net//blog/nix-flakes-go-programs
19.

A simple, arena-backed, generic dynamic array for C

nullprogram.com/blog/2023/10/05
18.

An easy-to-implement, arena-friendly hash map

nullprogram.com/blog/2023/09/30

2024-06-11

7.

NetBSD 10 on a Pinebook Pro laptop

www.idatum.net/netbsd-10-on-a-pinebook-pro-laptop.html

I've been running NetBSD on a RockPro64 since NetBSD 10-BETA, and I'm still happy with it now with NetBSD 10-RELEASE. I'm always looking for hardware to hack NetBSD though, and I recently watched a FOSDEM 2024 video: NetBSD 10: Thirty years, still going strong!. The Pinebook Pro laptop was mentioned at one point, which has the same RockChip SoC as the RockPro64. That reminded me I'd been wanting to give this inexpensive ARM 64 laptop a try.

2024-06-09

2.

Piku

piku.github.io/index.html

piku, inspired by dokku, allows you do git push deployments to your own servers, no matter how small they are.