New Rust video! https://video.infosec.exchange/w/hQ8ZsssNtrKSboZFF5RFHj A good long one where we make our language support variable scope, and shadow one variable with another. #rustlang #programming #video

#AI Slop Is Killing Our Channel https://www.youtube.com/watch?v=_zfN9wnPvU0

With the recent influx of newcomers from #bluesky , it behooves us to contemplate what we can do to improve #moderation on the #fediverse - something that has been a problem in the past, and is one of the major reasons why the Fediverse is not as big and as diverse as it could be. The first and […]

Renewables overtake coal as world's biggest source of electricity https://www.bbc.com/news/articles/cx2rz08en2po

I am stepping up work on my annual "Christmas game" where my kids and I write a game to send out as a Christmas card every year. (Where suitable, these are generally released publicly a few months later). So my regular weekly video release schedule might become less regular. If you are missing […]

Some of the most interesting type-checking we can do: inferring a type by how a variable is used: https://video.infosec.exchange/w/8CrUoLNxPkYTZTz5AqWeeA #rustlang #video #programming

Since when was vibe coding not an insult? https://www.theverge.com/news/787076/microsoft-office-agent-mode-office-agent-anthropic-models “Today we’re bringing vibe working to Microsoft 365 Copilot with Agent Mode in Office apps and Office Agent in Copilot chat,” says Sumit Chauhan, corporate […]

I spend all my day in neovim and it makes me happy. Today I'm using an IDE and the code is in a little window in the middle. Every time I move my mouse something pops up at me. It's painful.

Jez and Andy write a parser https://video.infosec.exchange/w/hEriRbWo4Q35h8K9xfUtGr After we finally finished gossiping, Jez started on a parser for my made-up language Cell, in Rust. #video #rustlang #programming

@andybalaam Had to handle a couple of error cases we don't have tests for in js-cell or p-cell 😮 https://birmingham.jezuk.co.uk/forgejo/?date=2025-09-25

Today I am mocking things I do not understand. ^ programming status, not life status

"A confusing contradiction is unfolding in companies embracing generative AI tools: while workers are largely following mandates to embrace the technology, few are seeing it create real value. [...] In collaboration with Stanford Social Media Lab, our research team at BetterUp Labs has […]

The other day we were walking around the grounds of Blenheim Palace, and my eldest began explaining to my youngest, from first principles, why a Monad is just a Monoid in the category of Endofunctors. Almost expired with parenting joy. We only got about […] [Original post on mastodon.social]

Please read Josh Marshall's take on the Trump regime's escalating attacks on freedom of speech -- Kimmel's removal only the latest but probably most extreme example. https://talkingpointsmemo.com/edblog/a-few-thoughts-on-kimmelgeddon/sharetoken/9b9c2c6c-bc94-4280-a74f-6fc8e2158cf8 The most […]

A video that's not just me droning on! My friend @jezhiggins pops up and we gossip about writing a lexer, and Rust, and streaming-style, and many other ramblings https://video.infosec.exchange/w/uAKiFMeV7oiw9cR6QKgEFE Disclaimer: video still does contain some of me droning on. #video […]

Got it! #lemmings

Totally agree: Trials Rising has the best tutorial of any game I've played, and that tutorial is why I got into the game and spent so many hours of my life enjoying it. https://youtu.be/YOLeuQzOOYI?feature=shared&t=599 #trials

Can't stop watching this https://youtube.com/shorts/8-lgJX3npiQ?feature=shared #ai

Just you, me a keyboard and neovim. We are coding up a little programming language. Listen in for a bit if you like: https://video.infosec.exchange/w/ruLm9ytt5rfMruvf4PmE1Y #rustlang #video #coding

It is SO yaml that there are 2 different file endings for yaml files, and you never know which one might be used where.

This one is proving a little tricky

Mini-rust in Rust 045: Combining two types when we add things https://video.infosec.exchange/w/qoQd275qXAyppc2tBVscsz We had a weird hack in place to handle the type of an expression like `x + 3` but now we can do better. Let's do it! #rustlang #video #coding

Now this is a journalist who deserves respect.

Why I don't use AI https://artificialworlds.net/blog/2025/09/03/why-i-dont-use-ai/ #ai

Seriously fluked that

This morning I was scared of the code change I need to make because of uncertainty where to start. This afternoon I have a failing test and am happily engaged in printf-debugging to make it pass. Tests make things better.

What happens when you `lick()` a `Mutex`?

It's almost but not quite nothing.

Has anyone written a nice short description of why I avoid AI? I'd like something that mentions: * environmental impact * exploitation of workers during training * bias and dangerous incorrect results * unfair use of people's creative work with references to examples of each point.

Doing some Rust. This is on @andybalaam in several different ways. https://birmingham.jezuk.co.uk/forgejo/jez/rust-cell-lang

I just solved Postcard from Lemmingland[1] and I feel good about myself. 1] [https://lemmings.fandom.com/wiki/Postcard_from_Lemmingland

Writing a programming language, and finally some non-trivial type checking is here! https://video.infosec.exchange/w/hLtxBxUTiaKhJH2zy9RFEY #rustlang #programming #video

I did a talk back in April and I'm still quite pleased with it :) https://www.jezuk.co.uk/blog/2025/08/talk-a-very-small-language-model.html

New video! https://video.infosec.exchange/w/5fev2Zj98BFSZzhWerUQEE The final (for now) side mission before we get back onto type-checking variables: allowing complex expressions to exist before operators. You can follow all the stuff I get up to with good old RSS on my blog […]

It will.

Prayer: We heard a story https://wrestleswithgod.org/2025/08/17/we-heard-a-story/

Sneak peek at what I'm working on

I really have a soft spot for Lemmings. Does anyone play anything a bit like it these days? Maybe for my Steam Deck or my Android phone?

Sending love to everyone at @Codeberg fixing the current outage 💚

We're on our way towards type-checking variables, but first we take another detour into parsing expressions: if we hit an unexpected token, we should backtrack and return what we found so far, not just stop with an error. https://video.infosec.exchange/w/tTKFh8R7eGx6eUvPPX2he3 #video #rustlang

You are a beautiful human being who is not defined by your exam results. Your life will take all kinds of unexpected turns. Do your best to roll with it, and remember you are loved.

Today's favourite Vim config: noremap <F3> :silent grep! ''<Left> Combined with ripgrep-based search and vim-qf for quicklist goodness, this means I can press F3 then type some stuff and I get a lightning fast search over my whole project.

Between #GiveUpGitHub and #inaturalist jumping the "AI" shark, I'm extra grateful for infrastructures like @Codeberg that have democratic governance mechanisms to give contributors a real vote and power in decision making. I hope more folks use those opportunities to find infrastructures that […]

“”I will not leave Gaza even if I am killed. I know I am on the assassination list, but I will continue to expose the crimes of the Israeli army against my people and show the world, and everyone who stands by them, the truth.”” - Anas Al-Sharif www.theguardian.com/world/2025/a...

If you want to get a sense of what the Matrix network will be like once Matrix 2 is fully rolled out, get yourself ElementX, and try it with an account on the matrix.org homeserver. I haven't had a chance to really stress test it yet. But from what I've experienced so far, it's a *huge* […]

Me on Matrix Live talking about message order: https://youtu.be/1aTaUcBpXks?feature=shared #matrix #video #podcast

Hrmm, we're not actually able to parse basic stuff, so a quick detour: https://video.infosec.exchange/w/orvwWaWsqzhme7p1kE2yrq I forgot how much we're optimised for the one single example I was being guide by. Now we need to flesh some stuff out a bit. #rustlang #video #programming

OK, I really need to get on with the project of moving my stuff to codeberg.org

I made the Matrix spec a little bit better! https://github.com/matrix-org/matrix-spec/pull/2190 Edits of events should be considered in server_origin_ts order. #matrix