Jan van Brügge

mc escher is old news, have you seen ｓｈｉｎｊｕｋｕ　ｓｔａｔｉｏｎ　ｍａｐｓ

Our new paper: Ouros, our processor for lazy functional languages. Its pipeline hides latency to overcome inherent sequentiality of graph reduction, through dataflow-driven execution and automatic multi-threading. It's up to 118% faster than our earlier KappaMutor processor. doi.org/10.1109/ASAP...

On sunday, I was visited by this tiny jumping spider (finger for scale) 😍 I didn't even know we had jumping spiders in Germany ¯\_(ツ)_/¯

Looking good @paverson.bsky.social

In my opinion the best talk from this year's ZuriHac

Even without the random moving (was offered a PostDoc in my hometown that I wanted to move back to after my PhD), I still left academia. Now I have stable working hours, actual holiday, twice the pay and I don't have to deal with the song and dance of where to publish with whom for max prestige.

I put a slightly too warm/wet tea bag into the trash the other day

Haskell can call into C code without blocking main thread (meaning that the C FFI plays nice with green threads because it can be preempted) and without the user having to manually manage a thread pool or similar. It's handled completely transparently for the user by the language and runtime

what the fuck is "data locality." do you seriously expect me to believe that you're improving performance by fiddling around with data structure feng shui?? NO. we are not going to waste our time trying to appease the L1 cache-spirit when we have real investors to appeas

🥸👍

The second instalment of our series "Haskellers from the trenches" is about Enterprise #Haskell at H-E-B, the Texan grocery chain. Blog post: blog.haskell.org/enterprise-h... Discourse: discourse.haskell.org/t/enterprise...

I especially love this diagram.

I was baffled when I learned that the english version of #FantasyRealms does not underline card names in the color of their suit like the german version does. it is way harder to tell if a given card works for the hand you're building or not. But this is nothing a few fineliners can't fix:

fixed your headline

Bevy 0.19 is out now! It features Next Generation Scenes, Render Bigger Scenes Faster, Contact Shadows, More Feathers Widgets, Text Input, Richer Text, App Settings, Post Processing Effects, Improved Skinned Mesh Culling, and more! bevy.org/news/bevy-0-19

When a shiny new version of GHC comes out, it should be easy to upgrade. After all, the new compiler should be more capable than the previous version! “Making GHC upgrades easy” on the #Haskell Blog, by Simon Peyton-Jones blog.haskell.org/making-ghc-u...

I just submitted the final version of my PhD thesis after the minor corrections were approved 🎉🎉🎉 In case anyone wants to read it: jvanbruegge.github.io/phd-thesis

Equal work deserves equal pay. 3 years ago, the EU agreed that payment of all employees should be clearly indicated, so that men and women receive the same. Now, EU countries are bringing these new rules into national law.

Maybe there is a nuanced discussion to have about using LLMs to write Haskell, but it cannot happen before LLM crawlers stop DDOSing the Haskell Gitlab instance.

Disney Animation remade three songs for ASL. For these, we resurrected the original data and pipeline version, reanimated (from near scratch in some places), relit where needed, and re-rendered. Probably the hardest way to do this, but definitely the right way to do it, so that's what we did!

Booster separation confirmed

My erosion filter is out! Video, blog post, and shader source. It emulates erosion without simulation, so it's fast, GPU friendly, and trivial to generate in chunks. Explainer video: www.youtube.com/watch?v=r4V2... Companion blog post: blog.runevision.com/2026/03/fast... #ProcGen #vfx #GameDev

#FreeCAD 1.1 is out! Transparent Part Design previews and draggers, Assembly and FEM animations, Sketcher Projection & Intersection, 3-point lighting and more! Notes: wiki.freecad.org/Release_notes_1.1 Get it: freecad.org/downloads Support the project: wiki.freecad.org/Donate youtu.be/a9biWv_M8p8

Went from knowing nothing about NixOS to contributing to it in 20 days! I don't know of many other Linux distros that'd allow that. Feels really reminiscent of Bevy's approach to FOSS: make the average user capable of contributing on onboarding, then provide a shallow on-ramp.

Over the last three weekends, my father and I built what I call the ultimate board game shelf. I designed it in #FreeCAD and tried out the new assembly workbench in 1.0 (it's sadly not quite there yet, let's see if 1.1 fixes the issues) Now my collection has space to grow :)

Golang: we have MISU at home. MISU at home: Make Invalid States Unavoidable

This argument never made sense to me. If someone is willing to wait several years for a PC version of a Sony game, they would never buy a PS5 in the first place. I certainly won't, but got several Sony games on Steam Most will just wait until emulation is good and pirate the game or not play at all

My mom just dropped by to give me the possibly best birthday cake @haskell.org 😅

Again, more vibecoding on Github, my future projects are all going to codeberg.org

Just found out that a website written in Haskell that I deployed and forgot about over *7 years ago* went down this week, not because it crashed, but because the logs were so long that the server ran out of disk space 🙈 Another tally in the column of "Haskell just works"

Bevy 0.18 is out now! It features Atmosphere Occlusion and PBR Shading, Generalized Atmospheric Scattering Media, Solari features, PBR Fixes, Font Variations, Automatic Directional Navigation, Fullscreen Materials, Cargo Feature Collections, Camera Controllers, and more! bevy.org/news/bevy-0-...

Last night's biggest surprise was Star Wars: Fate of the Old Republic, led by Casey Hudson, who directed KOTOR (and Anthem). Exciting news for lots of people... but Lucasfilm says the studio was founded this year, which means that 2030 is an *optimistic* guess. Maybe it'll be a PlayStation 7 game

I absolutely loved the old Kotor games, let's see if they can make a decent new one

I have to give my university-issued Laptop back soon, so I am reviving my old personal Laptop that did not see any use in the last three years. The whole process was: 1. Log into Wi-Fi 2. cd nix-config 3. git pull 4. nixos-rebuild switch --flake . God I love #NixOS

Don't you love seeing vibe coding out in the wild?

Probably the stupidest way to approach advent of code day 1 in #Haskell, but I just love knot-tying too much

@fasterthanli.me planted the ghostty bug, so today I did finally switch. Yeah, it's nice 😅

spotify is guilttripping me over cancelling my subscription, are you kidding me stay classy corpo

Calling for the separation of Church numerals and application State.

#Haskell language server was just released and it includes my changes to the notes plugin. You can now use "find references" to see all the places that reference a given note

OH: if vaccines caused autism, we’d have way more trains in the United States

i saw someone point out that the selector for time on iphone alarms is actually just a really long list and not truly circular. everything i’ve known is a lie

Today is Bevy's fifth birthday! As always, I've used this as a chance to reflect on the past year and outline my hopes and dreams for the next year of #bevy: bevy.org/news/bevys-f...

We ran a randomized controlled trial to see how much AI coding tools speed up experienced open-source developers. The results surprised us: Developers thought they were 20% faster with AI tools, but they were actually 19% slower when they had access to AI than when they didn't.

Solving "UK Passport Application" with Haskell: jameshaydon.github.io/passport/

Prompted by Hécate (last year 😅) I finally wrote up a blog post on why you should use the `Generically` newtype instead of DefaultSignatures in @haskell.org jvanbruegge.github.io/blog/2025/pl...