Does it support API key access or only Claude.ai subscription?
Readit Newswhy do you need that?
Pure visual object tracking in visionOS is considerable laggy (even with increased detection rate). Natively tracked peripherals (Logitech Muse, PSVR2 controllers) are super responsive, but are designed for hands and are too specialized. There is a place for generic 6DoF tracking device that can be attached to any object you want to track. This could be tiny IR LED array if you want to track it inside the field of view, but when you need precise position outside of your FoV, your options are limited.
I was hoping for 6DoF sub-mm realtime tracking. My disappointment is immeasurable and my day is ruined.
One of my list of dream projects that I might never have time to do, and so feel free to "steal" the idea, would be a eink notepad in where you could code in APL or similar.
APL was born as a mathematical notation, pertaining to the blackboard, so it makes sense to write it using a writing implement. Its terseness would make it ideal for the handwriting world, it's REPL implementation would give quick feedback loops, you could move around input and output streams.
You could be in a sofa, writing the solution, expending most of your energy thinking, not writing, once you got used to the new way of thinking and the vocabulary.
If you haven't tested any array language I would recommend you try to solve things using one, and check existing solutions so you can see how to think differently. Some problems are naturally easier with this approach, some are harder.
You are exactly right that the original vision of APL was a handwritten, non-ambiguous, consistent, and executable math notation. This was never accomplished.
In 2021, I made a prototype calculator designed for iPad and Pencil and wrote four essays called "New Kind of Paper" describing this concept. The video demonstration of the prototype [Demo] sums up pretty well how it might be used.
In 2024, Apple released Math Notes, which implements this concept for standard math notation. My "review" of it is at [MathNotes]. In short, it is currently a preview of a damn great tool, but its future depends on notation and expressivity.
APL is a language from 2066, created in 1966. While its semantics make more sense now due to machine learning, syntactically it remains alien to most people. Backus' FP/FL and Iverson's J are more approachable to current programmers, but still not there. In New Kind of Paper, I created a tiny language called Fluent, which is nowhere near the ambition of any language mentioned, but it is intentionally designed to be handwritten. A week ago, I open-sourced it. [Fluent]
There is plenty of work left to do, but it is a good start.
[NKoP]: https://mlajtos.mu/posts/new-kind-of-paper
[MathNotes]: https://mlajtos.mu/posts/new-kind-of-paper-5
[Fluent]: https://news.ycombinator.com/item?id=46649223
[Demo]: https://youtu.be/y5Tpp_y2TBk
Thanks for coming to my TED talk.
Conway's Life? Or DNA?
yes
mlajtos commented on Live 2025 – Spine [video] youtube.com/watch?v=80C-w... · Posted by u/surprisetalk
This is absolutely insane in the most positive way.
mlajtos commented on Show HN: Jax-JS, array library in JavaScript targeting WebGPU ss.ekzhang.com/p/jax-js-a... · Posted by u/ekzhang
I don’t think tf.tidy() is a sound API under jvp/grad transformations, also it prevents you from using async which makes it incompatible with GPU backends (or blocks the page), a pretty big issue. https://github.com/tensorflow/tfjs/issues/5468
Thanks for the feedback though, just explaining how we arrived at this API. I hope you’d at least try it out — hopefully you will see when developing that the refs are more flexible than alternatives.
I'll grind jax-js more and see if refs become invisible then. Thanks for a great project!
mlajtos commented on Show HN: Jax-JS, array library in JavaScript targeting WebGPU ss.ekzhang.com/p/jax-js-a... · Posted by u/ekzhang
I have a project using tfjs and jax-js is very exciting alternative. However during porting I struggle a lot with `.ref` and `.dispose()` API. Coming from tfjs where you garbage collect with `tf.tidy(() => { ... })`, API in jax-js seems very low-level and error-prone. Is that something that can be improved or is it inherent to how jax-js works?
Would `using`[0] help here?
[0]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
Claude.ai Pro is $20/month flat. But if you're doing serious agent-assisted coding (multi-file refactors, iterative debugging loops), you can blow through $50-100/day in API costs.
The math changes depending on usage patterns. Subscription makes sense for interactive coding sessions. API keys make sense if you're batch processing or running agents autonomously overnight.