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SELinux is unmanageable; just turn it off if it gets in your way
I’ve been an SELinux complexity apologist for years. Lately, I’ve concluded that every implementation with difficult-to-configure policies is just unmanageable.
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The latest blog posts to take off on Hacker News. 80,939 posts.
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Twitter buyout puts Mastodon into spotlight
The news of Elon Musk buying Twitter has put Mastodon into the public spotlight as an alternative social network, rapidly exploding our growth with over 30,000 new users in just a single day. This is because at Mastodon, we present a vision of social media that cannot be bought and owned by any billionaire, and strive…
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How to write a Git commit message (2014)
Commit messages matter. Here's how to write them well.
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Why Pessimism Sounds Smart
Optimism requires believing in an unknown, unproven future
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An update on the campaign to defend serious math education in California
Update (April 27): Boaz Barak—Harvard CS professor, longtime friend-of-the-blog, and coauthor of my previous guest post on this topic—has just written an awesome FAQ, providing his pers…
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Slack’s Incident on 2-22-22
By Laura Nolan, with contributions from Glen D. Sanford, Jamie Scheinblum, and Chris Sullivan. Assessing conditions Slack experienced a major incident on February 22 this year, during which time many users were unable to connect to Slack, including the author — which certainly made my role as Incident Commander more…
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Type-Based Optimizations in the JIT
The official home of the Erlang Programming Language
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Be careful with that thing, it's a confidential coffee maker
Just keep it under wraps.
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Reversing a 2.4GHz Remote Control
I have an old project on Github called rf-car for controlling a radio car with HackRF. A few months ago, my daughter received a new RC car made by Dickie Toys :
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GraalVM 22.1: Developer experience improvements, Apple Silicon builds, and more
Today we’re releasing GraalVM 22.1! This release brings new features and lots of improvements — we’ll cover the highlights in this blog…
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Effective Go
Go is an open-source programming language that focuses on simplicity, reliability, and efficiency, specifically designed to make it easy to build software at scale. Although it borrows ideas from existing languages, it has unusual properties that make effective Go programs different in character from programs written…
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MCC (Master Chief Collection) Server Incident Summary
<p>A deep dive into the recent incident that affected matchmaking and the custom games browser in Halo: MCC on April 1.</p>
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Zq: An easier and faster alternative to jq
Take an in-depth look at the different computational models of zq and jq.
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World military expenditure passes $2T for first time
(Stockholm, 25 April 2022) Total global military expenditure increased by 0.7 per cent in real terms in 2021, to reach $2113 billion. The five largest spenders in 2021 were the United States, China, India, the United Kingdom and Russia, together accounting for 62 per cent of expenditure, according to new data on…
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High-Security Mechanical Locks (2020)
Outside of a very few specialized fields high-security locks are almost totally unknown. Even in the field of locksmithing where high-security locks are known, they are often misunderstood. Today I am going to offer you a primer on the fascinating world of high-security mechanical locks, the securit
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Implementing a safe garbage collector in Rust
In my last post I introduced an Emacs Lisp VM I was writing in Rust. My stated goal at the time was to complete a garbage collector. I think Rust has some really interesting properties that will make building garbage collectors easier and safer. Many of the techniques used in my GC are not original and have been…
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Talk like a systems engineer: Yaks all the way down
Professional niches have – time immemorial – built their own special dialects and languages, sometimes using this as an…
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Things I can’t do on macOS which I can do on Ubuntu (2020)
I've never "got" the appeal of a Mac. But I have to use one for work. Here's a partial list of everything I cannot do on a Mac, but I can do on Ubuntu. These are all objective facts. These are things which either are impossible, or require adding unsupported 3rd party software - sometimes at a cost. Resize the system…
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There Is No CD Revival
Unless Maybe You are Adele
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Overgrowth: Open-Source Announcement
Open Source We have worked on Overgrowth for 14 years. It is our longest running, ongoing project, and a massive reason why we have…
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Tools for a Culture of Writing (2021)
A set of useful tools for cultivating a culture of writing, namely the RFC, the Decision Record and Decision Log, and the Pre-mortem/Prospective and Post-mortem/Retrospective
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Compile time evaluation in Nim, Zig, Rust and C++
Evaluating code at compile time is a capability that most, if not all, compiled programming languages possess, even if it can't be directly used by the programmer, but rather applied as an optimization. In this post, we'll explore a bit how to execute code at compile time in Nim, Zig, Rust and C++.
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Sorbet and 100% cov makes Ruby refactoring possible
Safely refactoring Ruby traditionally involves many incremental steps and feature flags. Sorbet and 100% branch coverage make it possible to refactor a lot of code safely.
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Things I sort of believe about making music
I've now been recording music at home for most of my life. I started at around 14. I would record things into audacity, sometimes with my friend Cameron, but more often by myself. I had no real idea of how to write, arrange, or record music. Besides a few covers I would mostly record incredibly abstruse 'experimental…
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Hexells – Self-Organising System of Cells Drawing Textures [WebGL]
is a Self-Organising System of cells, that was trained to build textures using neighbour communication only. This work exposes the relation between the life of an individual cell, and the cell collective as a whole.
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Best Font for Online Reading: No Single Answer
Among high-legibility fonts, a study found 35% difference in reading speeds between the best and the worst. People read 11% slower for every 20 years they age.
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The Machine Learning Job Market
I was on the job market recently, open to suggestions on what I should do next. I'm deeply thankful to all those who reached out and pitched their companies, and also to people who shared their wisdom of how they wanted to navigate their own careers.