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Show HN: Matlab syntax in Jupyter, client-side

https://concept-collection.github.io/jupyterlite-numbl-kernel/
1•jmagland•49m ago
jupyterlite-numbl-kernel is a JupyterLite kernel for numbl (https://numbl.org). It demonstrates running MATLAB syntax in Jupyter, client-side in the browser (no MATLAB or Octave needed). The live demo is a static site hosted on GitHub Pages... nothing to install:

https://concept-collection.github.io/jupyterlite-numbl-kerne...

Numbl is a lightweight (TypeScript + wasm + optional native bridge to OpenBLAS) numerical computing environment that tries to be as compatible as possible with MATLAB syntax. It has 500+ built-in functions and runs both in the browser and on the command line. I am developing it with Dan Fortunato at the Flatiron Institute.

Why do this? There are many codebases that are written exclusively in MATLAB, require a MATLAB license, and cannot be run client-side in the browser. One such example is chebfun (https://www.chebfun.org/), whose heavy use of MATLAB's object-oriented features means it does not run on Octave. Right now, numbl is mature enough to run most of Chebfun. The capabilities will expand over time as we implement more builtins.

I make a lot of static web applications (many of them proofs of concept) and I love trying to get code to run client-side in the browser. I think it's great for teaching, sharing ideas and methods, and communicating science with interactive views.

Caveat: numbl of course is not MATLAB. It covers a large, tested subset of the language though.

Kernel source: https://github.com/concept-collection/jupyterlite-numbl-kern...

Numbl source: https://github.com/flatironinstitute/numbl

PasteFlow

https://chromewebstore.google.com/detail/pasteflow/paenffoomjmkonbgkmfdbnfaljoiilgm
1•rbediner•26s ago•0 comments

Sunglasses: An open-source input scanner for AI agents

https://github.com/sunglasses-dev/sunglasses
1•azrollin•2m ago•0 comments

Robots.txt – Just Crawl It

https://www.nike.com/robots.txt
1•bfoks•2m ago•0 comments

Show HN: Carta – An open-source pandoc reimplementation in Rust

https://github.com/mfkrause/carta
1•mfkrause•3m ago•0 comments

Arctic: a lock-free concurrent ordered map for Rust

https://old.reddit.com/r/rust/comments/1v4f05y/announcing_arctic_a_lockfree_concurrent_ordered/
1•arto•4m ago•0 comments

OHMG: One Hot Modular Garbling

https://eprint.iacr.org/2025/2338
1•wslh•5m ago•0 comments

Show HN: 5dive – Run a Company of Claude Code/Codex Agents (Written in Bash)

https://github.com/5dive-ai/5dive
1•lodar•5m ago•0 comments

Thoughts on Integers

https://blog.xoria.org/integers/
1•vinhnx•5m ago•0 comments

Hosted PaddleOCR-VL-1.6 API

4•TimurKramar•6m ago•0 comments

Even camels can't cope: Africa's ships of the desert hit by rising temperatures

https://www.bbc.com/news/articles/cqlxvvw06pqo
1•throw0101d•7m ago•0 comments

My Agentic Coding Setup, July 2026

https://domenic.me/agentic-coding-setup/
2•domenicd•7m ago•0 comments

15 years of hand-curated architecture, art and design as an MCP server

https://www.thisispaper.com/intelligence/api-docs
1•zaxarov•8m ago•0 comments

SwiftUI After 7 Years: A Story of Mediocrity [video]

https://www.youtube.com/watch?v=3XaHHFOZeJg
1•mpweiher•8m ago•0 comments

AI Agent: "Strongest Assistant" or "Legal Virus"

https://twitter.com/TrustKernelTech/status/2077035288799449092
1•PlugMate•9m ago•0 comments

Proton uses Rust to build secure cross-platform apps for people

https://kerkour.com/proton-apps-rust
1•arto•10m ago•0 comments

How much energy do data centers and artificial intelligence use?

https://ourworldindata.org/how-much-energy-do-data-centers-and-artificial-intelligence-use
2•surprisetalk•10m ago•0 comments

OnePanel – All your apps. One place

https://onepanel.it/
2•evhalon•10m ago•0 comments

Show HN: Whetuu – a zero-config cross-shell prompt written in Zig

https://yamafaktory.github.io/whetuu/
2•yamafaktory•13m ago•0 comments

EU approves Saudi PIF's $55B acquisition of Electronic Arts

https://www.globalbankingandfinance.com/saudi-pifs-55-billion-ea-deal-approved-eu-merger-rules/
3•theHocineSaad•13m ago•0 comments

I learned PCB design, 3D printing and C just to listen to music

https://pentaton.app/blog/2026-07-12-introducing-pentaton-lp/
1•interfeco•13m ago•1 comments

Rust service hardening and production checklist

https://kerkour.com/rust-service-hardening-and-production-checklist
1•speckx•15m ago•0 comments

Not just development, distribution of software may change as well

https://antirez.com/news/170
1•Brajeshwar•17m ago•0 comments

Show HN: macOS menu-bar manager for SSH port forwards

https://github.com/lx2026/RelayBar
1•linxy97•18m ago•0 comments

Show HN: Remux – an open-source tmux workspace designed for iPhone

https://github.com/h3nock/remux
2•bitwise42•19m ago•0 comments

Frontier model evaluation for Physical AI

https://juliahub.com/blog/frontier-models-physical-ai-evaluation
1•ViralBShah•20m ago•0 comments

The Code That Made My Network Self Aware

https://github.com/bitmonky/BorgIOS/blob/main/nodeJS/src/borgAgentBrain.js
1•BorgIOS•20m ago•0 comments

Brazilian Amazon Sees Sharp Drop in Acres Burned

https://e360.yale.edu/digest/brazil-amazon-fires-2025
4•Brajeshwar•22m ago•0 comments

Dubai offers £600 to residents who lure friends to visit as tourism plummet

https://www.theguardian.com/world/2026/jul/23/dubai-offers-tourists-benefits
1•prmph•24m ago•0 comments

Podcast Transcript Fetcher for Lenny's, Dwarkesh, 20VC, and More

https://github.com/Varnan-Tech/opendirectory/tree/main/skills/podcast-transcript-fetcher
1•madanparas•24m ago•0 comments

Sorcery in the open: is generated code still source code?

https://semisafe.com/coding/ai/2026/07/22/sorcery-in-the-open
1•chotchkies•25m ago•0 comments