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ForeverVM: Run AI-generated code in stateful sandboxes that run forever

Hey HN!

We started Jamsocket a few years ago as a way to run ephemeral servers that last for as long as a WebSocket connection. We sandboxed those servers, so with the rise of LLMs we started to see people use them for arbitrary code execution.

While this works, it was clunkier than what we would have wanted in a first-principles code execution product. We built ForeverVM from scratch to be that product.

In particular, it felt clunky for app developers to have to think about sandboxes

19d | Hacker news
Launch HN: Maritime Fusion (YC W25) – Fusion Reactors for Ships

Hey HN, we’re Justin and Jason, co-founders of Maritime Fusion (https://maritimefusion.com/). We’re working on putting fusion reactors on ships—specifically, large container ships and defence applications. Should be easy!

Yes, we know: fusion has been the energy source of the future…and it always will be. But high-temperature superconductors (HTS) have changed the game for magnetic confinement, and we believe we’ll witness Q > 1 within a few (say 3

19d | Hacker news
Former VA cybersecurity chief issues dire warning about data belonging to millions of veterans

Sensitive financial and health data belonging to millions of veterans and stored on a benefits website is at risk of being stolen or otherwise compromised, according to a federal employee tasked with cybersecurity

Using & Styling the Details Element

Now that we're 5+ years into

, we know more about it than ever before. I thought I'd round that information up so it's in one place I can reference in the future without having to search the site — and other sites — to find it.

Using & Styling the Details Element originally published on CSS-Tricks, which is part of the

19d | CSS tricks
We Slept on This $4,000 Luxurious Mattress for 30 Nights. We Have Differing Thoughts

We slept on an ultra-luxurious Beautyrest Black for a month. Does the higher price tag mean better sleep? Here's what we found out. https://www.cnet.com/health/sleep/testing-the-beautyrest-black-mattress-for-30-nights/#ftag=CADf328eec

19d | cnet.com
Best Supplements to Reduce Cortisol: We Asked Experts if Supplements Can Really Lower Stress

Supplements to reduce cortisol have been rising in popularity. They claim to lower stress levels. Are they legit? https://www.cnet.com/health/nutrition/best-cortisol-supplements/#ftag=CADf328eec

19d | cnet.com
I Saw a Live Demo of Alexa's Big New AI Update

She's "smarter than she's ever been" and rolling out next month, Amazon announced today. The best part? Alexa Plus is free for Prime members. https://www.cnet.com/news/i-saw-a-live-demo-of-alexas-big-new-ai-update/#ftag=CADf328eec

19d | cnet.com
OpenAI Rolls Out Deep Research Access to More ChatGPT Users

You'll know longer need to pay $200 a month to access the intensive research tool. Plus: a version of Advanced Voice Mode for users of ChatGPT's free version. https://www.cnet.com/tech/services-and-software/openai-rolls-out-deep-research-access-to-more-chatgpt-users/#ftag=CADf328eec

19d | cnet.com
My Solar Panels Use the Sun -- and Golf Cart Batteries -- to Power My Home

100% energy independence isn't easy to achieve, but setting up my off-grid home helped me understand more about the magic of electricity (and a whole lot more). https://www.cnet.com/home/energy-and-utilities/my-solar-panels-use-the-sun-and-golf-cart-batteries-to-power-my-home/#ftag=CADf328eec

19d | cnet.com
 Nvidia retiring PhysX for its RTX 5000 GPUs has made some gamers furious - but I don't think it's a complete dealbreaker

Nvidia can't catch a break at the moment with its RTX 5000 series GPUs, as users discover 32-bit PhysX support required for enhanced visuals in older games isn't present on Blackwell GPUs.

https://www.techradar.com/computing/gpu/nvidia-retiring-physx-for-its-rtx-5000-gpus-has-made-some-gamers-furious-but-i-dont-think-its-a-complete-dealbreaker

 A new Linux backdoor is hitting US universities and governments

Auto-color granted its operators full access to compromised endpoints, allowing them to run malware remotely, and more.

https://www.techradar.com/pro/security/a-new-linux-backdoor-is-hitting-us-universities-and-governments

 Alexa Plus subscription pricing confirmed – and it's good news for Prime members

Amazon has announced the pricing for its new Alexa Plus voice assistant –and it could make a Prime subscription a no-brainer.

https://www.techradar.com/home/smart-home/alexa-plus-subscription-pricing-how-much-it-costs

 Slack is down for thousands – we've got live updates on the outage and what's happening

Slack is down. So I imagine a lot of workplaces are panicking. But Slack's team is working on fixing the service right now.

https://www.techradar.com/news/live/slack-outage

 Razer and Minecraft just announced a limited-edition collection, and I'm surprised it took so long

Razer has announced a new limited-edition Minecraft collection with four of its popular accessories decked out in Minecraft colors. All four products are available now.

https://www.windowscentral.com/gaming/minecraft/razer-minecraft-collection-announcement

uBlock Origin is dead, but these 4 ad blockers still work with Chrome
19d | pcworld.com
Grab this 8-device charging station for your desk while it’s 44% off
19d | pcworld.com
Samsung’s new 9100 Pro SSD is the fastest consumer drive in the world
19d | pcworld.com
How to use a video as your Windows desktop background
19d | pcworld.com
New AMD CPUs and GPUs come with free Monster Hunter Wilds
19d | pcworld.com
Optional Windows 11 24H2 update brings fixes and more advertising
19d | pcworld.com
Windows 11 24H2 now blocked on PCs running older AutoCAD software
19d | pcworld.com
A new Alexa AI is coming: What it will cost and when you can try it
19d | pcworld.com
 Intel launches Xeon 6500/6700 processors with performance cores

Intel unveils Xeon 6500 and Xeon 6700 processors with P cores for AI, content delivery, networking, and storage applications.

https://www.tomshardware.com/pc-components/cpus/intel-launches-xeon-6500-6700-processors-with-performance-cores

The Human Element: Using Research And Psychology To Elevate Data Storytelling

Effective data storytelling isn’t a black box. By integrating UX research & psychology, you can craft more impactful and persuasive narratives. Victor Yocco and Angelica Lo Duca outline a five-step framework that provides a roadmap for creating data stories that resonate with audiences on both a cognitive and emotional level. https://smashingmagazine.com/2025/02/human-element-using-research-psychology-elevate-data-storytelling/

Show HN: A Database Written in Golang

Recently created a minimal persistent relational database in Go. Main focus was on implementing & understanding working the of database, storage management & transaction handling. Use of B+ Tree for storage engine(support for indexing), managing a Free List (for reusing nodes), Support for transactions, Concurrent Reads. Still have many things to add & fix like query processing being one of the main & fixing some bugs

Repo link - https://gith

19d | Hacker news
Show HN: Breakout with a roguelite/vampire survivor twist

Hi HN ! This is an open source project I've been working on for a while. It's actually the third breakout-like game I've built. I really like the simplicity of the concept, having just one input (the puck horizontal position) and a simple gameplay that gives a low skill floor.

My girlfriend and I played a lot of the excellent LBreakoutHD, an open source breakout game that follows the traditional formula of having multiple lives, scoring points by breaking bricks and catching the good upgra

19d | Hacker news
Max Planck spinout unveils ‘world’s most viable’ fusion reactor design — and only needs 6 years to build it


German startup Proxima Fusion — whose team includes engineers from MIT, Google, SpaceX, and McLaren — has unveiled a fusion energy reactor design it believes offers the quickest route to commercially viable fusion power. Dubbed Stellaris, the machine is a quas

19d | The Next Web
‘I tell startups to leave Europe,’ says Dutch CEO of tech unicorn Remote


As the US and China pursue dominance in the global technology race, concerns are mounting among European founders that the region’s entrenched bureaucracy is impeding its capacity for innovation and growth. The EU is going “overboard on tech regulation,” said

19d | The Next Web
AI app that transcribes without recording audio or video promises to safeguard your privacy


An AI-powered note-taking app developed by Munich-based startup Bliro could offer a more secure way to transcribe audio. Bliro uses natural language processing and machine learning algorithms to extract relevant information from in-person or virtual conversati

19d | The Next Web
Venus Williams backs French startup that rewards you for walking


Venus Williams is most famous for being one of the best tennis players of all time, but she’s also a prolific angel investor. In her latest business move, Williams has backed French startup WeWard. WeWard is a free app that offers real-world rewards for walkin

19d | The Next Web
Hinge’s new feature wants to help trans and neurodivergent daters

Dating apps are a notoriously hostile space towards transgender users. If they list their transness in their profiles, they’re outing themselves to the world. If they don’t, matches could accuse them of catfishing. Picking the right time to tell matches can feel impossible. 

With “Mat

How To Navigate Performance Fluctuations In Google Shopping Campaigns via @sejournal, @brookeosmundson

Learn how to navigate the ups and downs of Google Shopping campaigns. Find out how to troubleshoot performance fluctuations and communicate effectively with clients.

The post How To Navigate Performance Fluctuations In Google Shopping Campaigns appeared first on Search Engine Journal.

https://www.searchenginejournal.com/p

Variants of LoRA

Want to train a specialized LLM on your own data? The easiest way to do this is with low rank adaptation (LoRA), but many variants of LoRA exist. https://stackoverflow.blog/2025/02/26/variants-of-lora/

DNA potvrzuje: Lidé v Evropě zesvětlali překvapivě nedávno

Pocházíme z Afriky a tam jsou všichni jako uhel. Kdy a jak vlastně Evropané přišli ke světlé kůži, vlasům a očím? Výzkum 348 dávných genomů z Eurasie, pokrývajících posledních 45 tisíc let, přesvědčivě ukazuje, že světlí lidé v Evropě převládli až velmi nedávno. Ještě v neolitu v Evropě dominovala tmavá kůže, vlasy i oči. http://www.osel.cz/13928-dna-potvrzuje-lide-v-evrope-zesvetlali-prekvapive-nedavno.html

19d | osel.cz
Do You Need Antivirus Software for Windows 11?

We explore how Windows Security and Microsoft Defender protect your Windows 11 computer and why you might want to consider an alternative. https://www.cnet.com/tech/services-and-software/do-you-need-an-antivirus-for-windows/#ftag=CADf328eec

20d | cnet.com
The Best VR Games to Play in 2025

These are the best immersive games to play in 2025 on Quest, PSVR 2, PC and even Vision Pro. https://www.cnet.com/tech/gaming/the-best-vr-games-to-play-in-2025/#ftag=CADf328eec

20d | cnet.com
Open-Access Networks Explained: A New Way to Get Home Internet

Open-access networks bring fast fiber to cities across the US, but they don’t operate like typical internet service providers. https://www.cnet.com/home/internet/open-access-networks-explained/#ftag=CADf328eec

20d | cnet.com
What Is Character.AI? Everything to Know About the Role-Playing AI Tool

The chatbot that lets you have surprisingly realistic conversations with AI-generated personas of athletes, celebrities and politicians has had its fair share of controversies. We walk you through what you need to know. https://www.cnet.com/tech/services-and-software/what-is-character-ai-everything-to-know-about-the-role-playing-ai-tool/#ftag=CADf328eec

20d | cnet.com
Musk Floats DOGE Stimulus Checks Proposal, but Will It Actually Happen?

The Tesla CEO and President Donald Trump have floated the idea of $5,000 checks derived from government spending cuts, but you should probably not get your hopes up. https://www.cnet.com/personal-finance/musk-floats-doge-stimulus-checks-proposal-but-will-it-actually-happen/#ftag=CADf328eec

20d | cnet.com
This Portable Power Station Can Do the Work of a Tesla Powerwall

Anker's new Solix F3800 Plus is an extra-large portable power station that's almost as good as a Tesla Powerwall or EcoFlow Delta Pro Ultra for a fraction of the price. https://www.cnet.com/how-to/this-portable-power-station-can-do-the-work-of-a-tesla-powerwall/#ftag=CADf328eec

20d | cnet.com
 In the age of AI, everybody could lose the right to anonymity

As AI’s capabilities grow, organizations must shift toward encryption-based methods to protect sensitive datasets.

https://www.techradar.com/pro/in-the-age-of-ai-everybody-could-lose-the-right-to-anonymity