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Life at the Edge

https://asadk.com/p/edge
1•tosh•2m ago•0 comments

RISC-V Vector Primer

https://github.com/simplex-micro/riscv-vector-primer/blob/main/index.md
2•oxxoxoxooo•6m ago•0 comments

Show HN: Invoxo – Invoicing with automatic EU VAT for cross-border services

2•InvoxoEU•6m ago•0 comments

A Tale of Two Standards, POSIX and Win32 (2005)

https://www.samba.org/samba/news/articles/low_point/tale_two_stds_os2.html
2•goranmoomin•10m ago•0 comments

Ask HN: Is the Downfall of SaaS Started?

3•throwaw12•11m ago•0 comments

Flirt: The Native Backend

https://blog.buenzli.dev/flirt-native-backend/
2•senekor•13m ago•0 comments

OpenAI's Latest Platform Targets Enterprise Customers

https://aibusiness.com/agentic-ai/openai-s-latest-platform-targets-enterprise-customers
1•myk-e•15m ago•0 comments

Goldman Sachs taps Anthropic's Claude to automate accounting, compliance roles

https://www.cnbc.com/2026/02/06/anthropic-goldman-sachs-ai-model-accounting.html
2•myk-e•18m ago•3 comments

Ai.com bought by Crypto.com founder for $70M in biggest-ever website name deal

https://www.ft.com/content/83488628-8dfd-4060-a7b0-71b1bb012785
1•1vuio0pswjnm7•19m ago•1 comments

Big Tech's AI Push Is Costing More Than the Moon Landing

https://www.wsj.com/tech/ai/ai-spending-tech-companies-compared-02b90046
2•1vuio0pswjnm7•21m ago•0 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
1•1vuio0pswjnm7•22m ago•0 comments

Suno, AI Music, and the Bad Future [video]

https://www.youtube.com/watch?v=U8dcFhF0Dlk
1•askl•24m ago•1 comments

Ask HN: How are researchers using AlphaFold in 2026?

1•jocho12•27m ago•0 comments

Running the "Reflections on Trusting Trust" Compiler

https://spawn-queue.acm.org/doi/10.1145/3786614
1•devooops•32m ago•0 comments

Watermark API – $0.01/image, 10x cheaper than Cloudinary

https://api-production-caa8.up.railway.app/docs
1•lembergs•34m ago•1 comments

Now send your marketing campaigns directly from ChatGPT

https://www.mail-o-mail.com/
1•avallark•37m ago•1 comments

Queueing Theory v2: DORA metrics, queue-of-queues, chi-alpha-beta-sigma notation

https://github.com/joelparkerhenderson/queueing-theory
1•jph•49m ago•0 comments

Show HN: Hibana – choreography-first protocol safety for Rust

https://hibanaworks.dev/
5•o8vm•51m ago•1 comments

Haniri: A live autonomous world where AI agents survive or collapse

https://www.haniri.com
1•donangrey•52m ago•1 comments

GPT-5.3-Codex System Card [pdf]

https://cdn.openai.com/pdf/23eca107-a9b1-4d2c-b156-7deb4fbc697c/GPT-5-3-Codex-System-Card-02.pdf
1•tosh•1h ago•0 comments

Atlas: Manage your database schema as code

https://github.com/ariga/atlas
1•quectophoton•1h ago•0 comments

Geist Pixel

https://vercel.com/blog/introducing-geist-pixel
2•helloplanets•1h ago•0 comments

Show HN: MCP to get latest dependency package and tool versions

https://github.com/MShekow/package-version-check-mcp
1•mshekow•1h ago•0 comments

The better you get at something, the harder it becomes to do

https://seekingtrust.substack.com/p/improving-at-writing-made-me-almost
2•FinnLobsien•1h ago•0 comments

Show HN: WP Float – Archive WordPress blogs to free static hosting

https://wpfloat.netlify.app/
1•zizoulegrande•1h ago•0 comments

Show HN: I Hacked My Family's Meal Planning with an App

https://mealjar.app
1•melvinzammit•1h ago•0 comments

Sony BMG copy protection rootkit scandal

https://en.wikipedia.org/wiki/Sony_BMG_copy_protection_rootkit_scandal
2•basilikum•1h ago•0 comments

The Future of Systems

https://novlabs.ai/mission/
2•tekbog•1h ago•1 comments

NASA now allowing astronauts to bring their smartphones on space missions

https://twitter.com/NASAAdmin/status/2019259382962307393
2•gbugniot•1h ago•0 comments

Claude Code Is the Inflection Point

https://newsletter.semianalysis.com/p/claude-code-is-the-inflection-point
4•throwaw12•1h ago•3 comments
Open in hackernews

Show HN: My pocket device to mine cryptocurrencies using solar ("Pocket Miner")

1•AJTSheppard•9mo ago
I've built a small pocket device for mining cryptocurrencies. I've squeezed a couple of solar panels and quite a bit of electronics into an Altoids tin that neatly fits in your pocket or purse. Just open it up to the sun, sit back and drink your coffee, and start mining.

I call it the "Pocket Miner". Demo video (~120 sec): https://youtu.be/kAskH1c4AmE

Read the FAQs (https://andrewsheppard.com/faq.html)

My motivation behind building this device is summarized in what I call the "Pocket Manifesto".

THE POCKET CRYPTO MANIFESTO ("POCKET MANIFESTO")

What We Believe

+ Money is too important to leave in the hands of politicians and bankers, who historically have been poor custodians of the money supply.

+ For cryptocurrencies (crypto) to work better and best serve people who want to use it, crypto needs to be democratized and put in the pockets (literally!) of the people who use it.

+ The blockchains that underly crypto must be robust and resilient in the sense that they are reliable and available from day-to-day and resistant to attacks whenever and wherever they come from. To that end, the network and compute resources that sustain them must be big and small, and geographically and technologically diverse and not wholly dependent on the grid and internet. Help remove single points of failure and concentration of resources, where possible, from the crypto infrastructure without compromising it.

+ The network and compute that sustain crypto is today too wasteful of energy and more should be done to harvest the abundant ambient energy in the environment around us to power it.

+ By using free energy from the ambient environment we take load off the grid, and make crypto activities more "green", so to speak. And, hey, the energy is free so tokens you mine are free!

+ Also, pocket mining devices are easy to recycle, reducing their impact on the environment at end-of-life.

+ Both ambient energy harvesting and recycling will make the crypto infrastructure more sustainable.

+ Mining and other activities that sustain crypto have become too concentrated in the hands of the few and, for the sake of resilience, diversity, and democratization, needs to be spread and widened to the hands of the many, including those economically disadvantaged (by removing cost as a barrier to entry).

What We Will Do - A New Direction and Future for Crypto

+ Perhaps ironically, we want to create a "solo-miner collective", a group of people that supports crypto infrastructure by people walking around with small devices (ideally, pocket and purse sized) that work by harvesting energy for free from the ambient environment around them.

+ Put crypto figuratively and literally in the pockets of people. Figuratively in the sense that people can acquire and accumulate small amounts of crypto over time. Literally, by using small low-cost (thereby lowering the barrier to entry) devices in their pocket or purse.

+ Give people complete control over what, when, why and how (solo or pool) they mine crypto.

+ Allow anyone to develop new coins and tokens in the crypto space and launch and deploy them quickly onto an existing and established network of widely distributed green devices. Given the numerous small devices onto which they can be deployed, this has the added advantage of a diverse and wide adoption by many people. Allow people to experiment.

+ Encourage people to adopt crypto at low cost and with low risk, and learn something useful about crypto while doing it.

+ Allow individuals, schools and universities to educate themselves about blockchain and crypto in a hands-on and participative way.

+ Explore network topologies and infrastructure to support crypto beyond the internet, both globally and at the campus/community level.

Comments

tromp•9mo ago
How many lifetimes will it take to recover the $167 cost of the miner, assuming you get the 700mW of solar power for 8 hours a day, mining the most profitable cryptocurrency as of today?
AJTSheppard•9mo ago
I suggest you read the FAQs and Pocket Manifesto. It's not a purely economic proposition. Not all cryptos are PoW. And, like compound interest, things accrue over time. Lastly, it depends on your future view of where crypto is going versus the US dollar. In some ways the Pocket Miner can be thought of as a device for converting US dollars to crypto in a friendly way; do that conversion now (and over time) and perhaps benefit later? It depends on your view of where crypto is going.
tromp•9mo ago
I read the FAQ and Pocket Manifesto. It provides zero information on the maximum hashrate of your device on various PoW systems. So the user has no idea whether, given current blockchain hashrates and coin prices, they can expect to make $0.01 per day or $0.00001 per day. Do you have any idea? What is the expected mining time to make 1 satoshi?

Perhaps you could state that the user can only expect to make back a small fraction of the $169 cost in a lifetime of mining, and that its primary purpose is instead that of a functional piece of art, which I think it is.

Unfortunately it cannot mine with the PoW I created [1], or I might be tempted to buy one.

[1] https://github.com/tromp/cuckoo