2025-08-21
A Brief Guide to A Few Algebraic Structures
argumatronic.com/posts/2019-06-21-algebra-cheatsheet.htmlI 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
A dive into open chat protocols
wiki.alopex.li/ADiveIntoOpenChat2025-07-03
Beamer Viewer
beamerviewer.euxane.euThis web app displays notes and slides in separate windows,
keeping both synchronised.
It accepts simple, double-width, or double-height PDF presentations:
2025-06-20
Cursed Knowledge | Immich
immich.app/cursed-knowledgeThings we wish we didn't know
2025-05-30
The PGP Problem
www.latacora.com/blog/2019/07/16/the-pgp-problemWhy do people keep telling me to use PGP? The answer is that they shouldn’t be telling you that, because PGP is bad and needs to go away.
2025-05-23
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.
2025-01-17
Earthstar
earthstar-project.orgStorage for private, distributed, offline-first applications. Earthstar is a specification and JavaScript library for building connected applications owned and run by their users.
2025-01-07
Write your own tiny programming system(s)!
d3s.mff.cuni.cz/teaching/nprg0772024-12-17
GBA From Scratch With Ferris
lokathor.github.io/gba-from-scratchBuilding GBA Games in Rust
shanesnover.com/2024/02/07/intro-to-rust-on-gba.html2024-10-16
Damas-Hindley-Milner inference two ways
bernsteinbear.com/blog/type-inference2024-08-14
A Flexible Minimalist Neovim for 2024
wickstrom.tech/2024-08-12-a-flexible-minimalist-neovim.html2024-07-02
A write-ahead log is not a universal part of durability
notes.eatonphil.com/2024-07-01-a-write-ahead-log-is-not-a-universal-part-of-durability.htmlA write-ahead log is not a universal part of durability
2024-06-24
Counting Immutable Beans: Reference Counting Optimized for Purely Functional Programming
arxiv.org/abs/1908.05647Most 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.
2024-06-20
Go's 'range over function' iterators and avoiding iteration errors
utcc.utoronto.ca/~cks/space/blog/programming/GoIteratorsAndAvoidingMistakes2024-06-18
Understanding a Python closure oddity
utcc.utoronto.ca/~cks/space/blog/python/UnderstandingClosureOddity2024-06-14
CAUSAL.AGENCY(7)
causal.agencyI 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.
2024-06-13
Category Theory in Context
math.jhu.edu/~eriehl/context.pdfA simple, arena-backed, generic dynamic array for C
nullprogram.com/blog/2023/10/05Optimal SQLite settings for Django
gcollazo.com/optimal-sqlite-settings-for-djangoThere’s plenty of information out there on how to scale Django to handle numerous requests per second, but most of it…