📮 In the first feature-length article on the Bloomberg JS Blog...
@jonkuperman.com explains:
🗺️ what are source maps
✅ how he worked with others to standardize them in TC39
✨ the new debugging features this unlocks
Some time ago, @jonkuperman.com & @tchetwin.bsky.social had a dream for the JS engineers at Bloomberg to be more public about the cool JS work we have going on.
That dream has come true - now we have a blog platform 🎉
(You'll see more articles over the next few days)
bloomberg.github.io/js-blog/
"The system is optimizing correctly for what it measures. What it measures no longer captures what matters" www.rockoder.com/beyondthecod...
"By harnessing a particle accelerator to generate extraordinarily bright, coherent X-rays, the team was able to capture high-res internal anatomy in seconds, without the lengthy... steps often required for soft-tissue contrast in standard lab scanners."
spectrum.ieee.org/3d-scanning-...
"The interesting part is not the payload. It is how the attacker got the npm token in the first place: by injecting a prompt into a GitHub issue title, which an AI triage bot read, interpreted as an instruction, and executed"
grith.ai/blog/clineje...
"the entire concept of all RAM is equal is dying, and that is not because it is wrong, it's just because it's too expensive"
www.youtube.com/watch?v=cnX5...
an image of a table showing results of benchmarks with the best model (GPT 5.1 High) scoring 23.7%.
"Even with increasingly sophisticated context engineering, models often fail in subtle but consequential ways. Providing context is not enough if the model cannot truly learn from it"
hy.tencent.com/research/100...
an O'Rly book cover with a picture of a sloth and the title "Copying and Pasting from ChatGPT" and the subtitle "Deploying untested code at breakneck speeds"
can't wait to read this. 🥸🤖
"Incidentally, if you read a tabloid headline about the NHS wasting money on old pagers when doctors could use smartphones, it means the person writing it doesn’t understand radio technology" www.ianvisits.co.uk/articles/how...
a screenshot of a demo video of the cursor browser
"all they've proved so far, is that agents can output millions of tokens and still not end up with something that actually works" 🤪
embedding-shapes.github.io/cursor-impli...
"agents make code cheaper. they do not make judgment cheap"
sunilpai.dev/posts/seven-...
"the future is enduringly bright for general-purpose languages that are efficient in “performance per watt” and “performance per transistor.”"
herbsutter.com/2025/12/30/s...
"Meta has found that the scheduler can actually adapt and work very well on the hyperscaler's large servers" www.phoronix.com/news/Meta-SC...
Micro QuickJS is a new JavaScript engine by the famous Fabrice Bellard 🎉
📖 Written in C
🗜️ Uses 100 kB ROM
⚠️ Supports a subset of JS close to ES5
🐏 Runs programs in as little as 10 kB of RAM
🔥 Speed is comparable to the full QuickJS engine
github.com/bellard/mqui...
"If formal verification becomes vastly cheaper, then we can afford to verify much more software. But on top of that, AI also creates a need to formally verify more software"
martin.kleppmann.com/2025/12/08/a...
"The core browsing experience should be one that fully puts the user in control, not one where you’re constantly monitoring an inscrutable system that claims to be helping you"
www.waterfox.com/blog/no-ai-h...
"we will extend this hardened foundation across the entire software stack with hardened libraries, hardened system packages, and other secure components everyone depends on. The goal is simple: be able to secure your application from main() down." www.docker.com/blog/docker-...
My gift to the rustdoc team: fasterthanli.me/articles/my-...
Merry syntaxmas, everyone!
it's the time of the year when thoughts turn not just to how soon we can stop for the holidays but also what we'll be coming back to, which makes it a good time for me to take a look ahead at ECMAScript 2026 and all the features that we already know will become part of JavaScript then
a screen grab of the related youtube video, with the "grim reaper" as "RAM Prices" meme showing Lenovo, Raspberry Pi and Samsung already dead.
"those companies all realized they can make billions more dollars making RAM just for AI datacenter products, and neglect the rest of the market"
www.jeffgeerling.com/blog/2025/ra...
"Bun's single-file executables turned out to be perfect for distributing CLI tools." 💯
bun.com/blog/bun-joi...
"the security issues in the XSLT library used in Chrome were nothing more than excuses to give the final blow to RSS and any other XML format that is still the backbone of an independent web" wok.oblomov.eu/tecnologia/g...
looks nice from an initial glance. very few dependencies. very small binary size - ~2x QuickJS. builds fast for a Rust project. process cycle time on par with QuickJS. not so great on the language benchmarks, but early days.
zoo.js.org
"Brimstone chooses to implement almost all components of the engine from scratch with minimal dependencies"👀
github.com/Hans-Halvers...
"For medium and large changes, the rollback rate of Rust changes in Android is ~4x lower than C++" security.googleblog.com/2025/11/rust...
"It is clear from the performance of software-based schemes, such as address sanitizers, that hardware acceleration will be needed for enabling memory safety checking in production code." community.intel.com/t5/Blogs/Tec...
"The sovereignty issue is not going to go away. As Carrez said in a press conference: "It's extremely top of mind in the EU right now, it's what everyone is just talking about, and it's what everybody is doing.""
www.zdnet.com/article/euro...
a graph showing the proposed alternative scheduler massively outperforming stock kubernetes scheduler
"The result is raw hardware capable of millions of writes per second, but etcd delivering orders of magnitude less due to the interfaces and guarantees it must uphold" bchess.github.io/k8s-1m/
a screen grab from the youtube video displaying a smiling 1950's woman from an ad and the message CORE = small + stable
nice summary of why vite is... good? #smallcore ftw! 💪
www.youtube.com/watch?v=B_H1...
