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How AI on Microcontrollers Actually Works: Operators and Kernels

The buzz around “edge AI”, which means something slightly different to almost everyone you talk to, is well past reaching a fever pitch. Regardless of what edge AI means to you, the one commonality is typically that the hardware on which inference is being performed is constrained in one or more dimensions, whether it be compute, memory, or network bandwidth. Perhaps the most constrained of these platforms are microcontrollers. I have found that, while there is much discourse around “running AI

Yurei – Open source social media researcher powered by Exa AI API and YouTube v3

yurei app still in progress, not live on https://yurei.app/ yet, but you can clone it and try it out a simple opensource social media researcher powered by exa ai api and youtube v3. built with vercel's ai sdk. what it does: searches youtube for videos searches reddit for posts searches linkedin (kinda fucked rn, working on it) using grok-21212 as the llm how to install clone this repo npm install or yarn make a .env.local with: NEXT_PUBLIC_URL=http://localhost:3000 # For development NE

A simple opensource social media researcher powered by exa ai api and youtube v

yurei app still in progress, not live on https://yurei.app/ yet, but you can clone it and try it out a simple opensource social media researcher powered by exa ai api and youtube v3. built with vercel's ai sdk. what it does: searches youtube for videos searches reddit for posts searches linkedin (kinda fucked rn, working on it) using grok-21212 as the llm how to install clone this repo npm install or yarn make a .env.local with: NEXT_PUBLIC_URL=http://localhost:3000 # For development NE

Launch HN: K-Scale Labs (YC W24) – Open-Source Humanoid Robots

Hi HN, I'm Ben, from K-Scale Labs ( https://kscale.dev ). We're building open-source humanoid robots. Hardware video: https://www.youtube.com/watch?v=qhZi9rtdEKg Software video: https://www.youtube.com/watch?v=hXi3b3xXJFw Docs: https://docs.kscale.dev Github: https://github.com/kscalelabs HN thread from back in May: https://news.ycombinator.com/item?id=44023680 I started K-Scale because I really wanted a humanoid robot to hack on, so I knew that if I built one, I would have at least one cu

Math.Pow(-1, 2) == -1 in Windows 11 Insider build

Description The following is copied with extra bits from https://aka.ms/AAwwjwl (Feedback Hub) to raise awareness of this issue: Hello, I'm a contributor to osu! (https://github.com/ppy/osu). A user reported a really weird problem with our game that only happens in the current version of Canary (27881.1000) in ppy/osu#33948. I've narrowed it down to ppy/osu#33948 (comment), which is Math.Pow(-1, 2) returning -1 instead of 1 for some odd reason. Used VSCode for C# installation of .NET 8 (what

Topics: https osu pow ppy std

One of the best budget Android tablets I've tested isn't made by Samsung or Google

ZDNET's key takeaways The TCL Tab 10 Nxtpaper 5G is a full-color, color paper, and ink paper tablet available at Verizon for $239. It's a great entertainment tablet for daily use that also functions very well as an e-reader. Although the screen is versatile, don't expect the graphics to compare to those on an iPad or other high-end tablets. View now at Verizon For a limited time, Verizon is running an offer for the TCL Tab 10 Nxtpaper 5G that nets you $100 off the tablet when you purchase it

Show HN: A modern C++20 AI SDK (GPT‑4o, Claude 3.5, tool‑calling)

Hi all, I’m hacking on new features for the ClickHouse native client and wanted the same “just call the model” ergonomics JavaScript and Python now enjoy. It didn’t exist for modern C++, so I wrote one. ai‑sdk‑cpp (Apache‑2.0) gives you: - Unified calls to OpenAI (GPT‑4o) and Anthropic (Claude 3.5) with a single C++20 API. - Streaming, multi‑turn chat, error handling—all std::optional/std::variant, no macros. - Tool calling (function‑calling) so the model can hit real APIs; sync or async, run

Topics: ai com github https sdk

Ask HN: Who is hiring? (July 2025)

Please state the location and include REMOTE for remote work, REMOTE (US) or similar if the country is restricted, and ONSITE when remote work isan option. Please only post if you personally are part of the hiring company—no recruiting firms or job boards. One post per company. If it isn't a household name, explain what your company does. Please only post if you are actively filling a position and are committed to responding to applicants. Commenters: please don't reply to job posts to compla

Show HN: Arch-Router – 1.5B model for LLM routing by preferences, not benchmarks

Hi HN — we're the team behind Arch ( https://github.com/katanemo/archgw ), an open-source proxy for LLMs written in Rust. Today we're releasing Arch-Router ( https://huggingface.co/katanemo/Arch-Router-1.5B ), a 1.5B router model for preference-based routing, now integrated into the proxy. As teams integrate multiple LLMs - each with different strengths, styles, or cost/latency profiles — routing the right prompt to the right model becomes a critical part of the application design. But it's stil

Cloudflare to introduce pay-per-crawl for AI bots

5 min read A changing landscape of consumption Many publishers, content creators and website owners currently feel like they have a binary choice — either leave the front door wide open for AI to consume everything they create, or create their own walled garden. But what if there was another way? At Cloudflare, we started from a simple principle: we wanted content creators to have control over who accesses their work. If a creator wants to block all AI crawlers from their content, they should

Cloudflare launches a marketplace that lets websites charge AI bots for scraping

Cloudflare, a cloud infrastructure provider that serves 20% of the web, announced Tuesday the launch of a new marketplace that reimagines the relationship between website owners and AI companies — ideally giving publishers greater control over their content. For the last year, Cloudflare has launched tools for publishers to address the rampant rise of AI crawlers, including a one-click solution to block all AI bots, as well as a dashboard to view how AI crawlers are visiting their site. In a 20

Restoring a ZX Spectrum+ Toastrack

Restoring a ZX Spectrum+ Toastrack I talk a lot about Commodore machines in this blog; they left a bigger dent in me growing up, but like most kids of my generation living in Portugal in the 80s, the first computers I played with were actually Sinclairs—first my friend’s ZX81 and then a ZX Spectrum 48K that my parents offered me. I have many memories of playing games like the Horace series, Manic Miner, Jetpac, or Chuckie Egg on my Spectrum. I’ve been keeping a few Timexes and Spectrums that h

Apple fails to dismiss DOJ’s antitrust lawsuit over iPhone dominance [U]

Update: Apple has responded to the decision with a statement provided to 9to5Mac. See full statement below. Apple’s attempt to shut down the U.S. government’s antitrust case over its alleged smartphone monopoly has just hit a wall. Here’s the latest. Apple had filed a motion to dismiss the case in August As reported by Reuters, U.S. District Judge Julien Neals in Newark, New Jersey rejected Apple’s motion to dismiss the Department of Justice lawsuit that accuses the company of illegally maint

Need a good alternative to the big three? These carriers are my top 3 recommendations

Edgar Cervantes / Android Authority For years, many of us have gone directly to the big carriers for phone service. But with rising costs and the gradual disappearance of extras like streaming perks, is it time to consider an alternative? While it’s true that Verizon, AT&T, and T-Mobile control the only three mobile networks with wide national coverage, there are plenty of other carriers that piggyback off this same infrastructure. These providers can offer much cheaper alternatives to traditi

Why is the Rust compiler so slow?

"Why is the Rust compiler so slow?" I spent a month repeatedly building my website in Docker, and now have horrors to share. I've got a problem. My website (the one you're reading right now) is mainly served by a single Rust binary. For far too long now, every time I wanted to make a change, I would: Build a new statically linked binary (with --target=x86_64-unknown-linux-musl ) Copy it to my server Restart the website This is... not ideal. So instead, I'd like to switch to deploying my we

“Why is the Rust compiler so slow?”

"Why is the Rust compiler so slow?" I spent a month repeatedly building my website in Docker, and now have horrors to share. I've got a problem. My website (the one you're reading right now) is mainly served by a single Rust binary. For far too long now, every time I wanted to make a change, I would: Build a new statically linked binary (with --target=x86_64-unknown-linux-musl ) Copy it to my server Restart the website This is... not ideal. So instead, I'd like to switch to deploying my we

"Why is the Rust compiler so slow?"

"Why is the Rust compiler so slow?" I spent a month repeatedly building my website in Docker, and now have horrors to share. I've got a problem. My website (the one you're reading right now) is mainly served by a single Rust binary. For far too long now, every time I wanted to make a change, I would: Build a new statically linked binary (with --target=x86_64-unknown-linux-musl ) Copy it to my server Restart the website This is... not ideal. So instead, I'd like to switch to deploying my we

Some bits on malloc(0) in C being allowed to return NULL

You're using a tool with a too-generic User-Agent You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace, the wiki thing it's part of. Unfortunately whatever you're using to do so has a HTTP User-Agent header value that is too generic or otherwise excessively suspicious. Unfortunately, as of early 2025 there's a plague of high volume crawlers (apparently in part to gather data for LLM training) that behave like this. To reduce th

Launch HN: Issen (YC F24) – Personal AI language tutor

Hey HN, we're Mariano and Anton from ISSEN ( https://issen.com ), a foreign language voice tutor app that adapts to your interests, goals, and needs. Demo: https://www.loom.com/share/a78e713d46934857a2dc88aed1bb100d?... We started this company after struggling to find great tools to practice speaking Japanese and French. Having a tutor can be awesome, but there are downsides: they can be expensive (since you pay by the hour), difficult to schedule, and have a high upfront cost (finding a tutor

The best cheap portable power stations of 2025: Expert tested and reviewed

I remember when power banks were new. They were an amazing development, freeing us from the tyranny of having to be near an AC outlet to charge out gadgets. Next came the power stations. They packed even more power into an admittedly bigger space. Still, we were freed from needing to be near to AC outlets or use extension cables when working outside, or in the RV or camping. The original power stations were big and expensive, so manufacturers to came up with smaller, more affordable models. Her

Trump Mobile drops its 'made in the USA' claims

The Trump Organization announced a cellular brand earlier this summer, and its main selling point for Trump Mobile was that its T1 smartphone was "made in the USA." It seemed highly unlikely that those claims about the phone were possible. Now, the website for the device has removed all language indicating that it was manufactured in the US. Instead, there is broader language such as "designed with American values in mind" and "Premium Performance. Proudly American." The Verge also noticed that

Show HN: Scream to Unlock – Blocks social media until you scream “I'm a loser”

Hi all, I kept wasting time on social media, even though I’d promised myself I’d stay focused. Regular site blockers didn’t help. I needed something that felt annoying enough to break the habit. That’s how the idea came up: make the blocker ask me to say something embarrassing out loud before it lets me back in. If I actually have to yell “I’m a loser” into my mic. Even better - the louder I screamed, the more time I’d get. So I put together Scream to Unlock. It’s silly, but so far it’s done

Show HN: I built a tool that blocks social media until you scream "I'm a loser"

Hi all, I kept wasting time on social media, even though I’d promised myself I’d stay focused. Regular site blockers didn’t help. I needed something that felt annoying enough to break the habit. That’s how the idea came up: make the blocker ask me to say something embarrassing out loud before it lets me back in. If I actually have to yell “I’m a loser” into my mic. Even better - the louder I screamed, the more time I’d get. So I put together Scream to Unlock. It’s silly, but so far it’s done

The US Government Is Weighing a Ban on TP-Link Routers, but I’m Not in a Rush to Replace Mine

Wi-Fi routers don't typically spend much time in the limelight, but TP-Link has been an exception over the past six months. Three US departments are currently investigating the company for ties to Chinese cyberattacks and potential predatory pricing. That's a lot of bad press, but it hasn't been enough for me to buy a new Wi-Fi router yet. I've been covering the internet world for more than six years, and for the past two, I've used a TP-Link router. I can honestly say I've never had an issue w

These battery-powered 4K cameras record 24/7

is a smart home reporter who’s been testing connected gadgets since 2013. Previously a contributor to Wirecutter, Wired, Dwell, and US News. TP-Link just launched a bunch of new security cameras for its Tapo smart home brand, including a 4K-capable line for outdoors and a slew of inexpensive pan and tilt cams that can be used indoors and out. The company is also finally releasing its Tapo HomeBase H500 central hub, first shown at CES 2024, which brings facial recognition and expanded local stor

Tell HN: Meta developer account suspended

Hi all, my Meta developer account was suddenly restricted without warning, and there’s no way to appeal or reach support. I believe this may have been triggered by a location (read, IP address) change: I’m a student-entrepreneur who recently moved from China to Kenya for school holidays. I’m building a WhatsApp-based accounting tool for African small businesses, and this restriction is blocking critical operations. I’ve come across others facing the same issue, with no review option or clear re

Can your terminal do emojis? How big?

Emojis are great. They're particularly useful to put in the output of scripts and get some eye catching output. At least provided they aren't overused, just like colour. $ important-command Lots of output... ‼️ Something went wrong! Some more output... But bigger emojis are better, right? The VT100, introduced in 1978 has a way to do bigger text. You can even play with this due to the wonderful PCjs VT100 implementation. The way it works is you use the DECDHL (DEC Double-Height Line) escapes

Rivulet: An esolang inspired by calligraphy && code [video]

Rivulet: an esolang inspired by calligraphy and other experiments in natural language && code Daniel Temkin 22 min 22 min 105 105 Fahrplan [Rivulet](https://github.com/rottytooth/Rivulet) eschews keywords entirely. This is not done to move *away* from natural language (as in APL's use of mathematical symbols) but instead to draw from an aspect of natural language usually ignored in prog language design: calligraphic writing. Rivulet code is written in flowing lines inspired by handwritten n

TPU Deep Dive

I've been working with TPUs a lot recently and it's fun to see how they had such different design philosophies compared to GPUs. The main strongpoint for TPUs is in their scalability. This is achieved through a co-design of both the hardware side (e.g. energy efficiency and modularity) and the software side (e.g. XLA compiler). Background To give a brief tldr on TPUs, it's Google's ASIC that focuses on two factors: extreme matmul throughput + energy efficiency. Their origins go back to Googl

Topics: chip chips tpu tpus tpuv4

TPU (Tensor Processing Unit) Deep Dive

I've been working with TPUs a lot recently and it's fun to see how they had such different design philosophies compared to GPUs. The main strongpoint for TPUs is in their scalability. This is achieved through a co-design of both the hardware side (e.g. energy efficiency and modularity) and the software side (e.g. XLA compiler). Background To give a brief tldr on TPUs, it's Google's ASIC that focuses on two factors: extreme matmul throughput + energy efficiency. Their origins go back to Googl

Topics: chip chips tpu tpus tpuv4