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Article URL: https://www.marineinsight.com/green-shipping/how-air-lubrication-system-for-ships-work/

Comments URL: https://news.ycombinator.com/item?id=47027904

Points: 1

# Comments: 0

Article URL: https://www.pcmag.com/news/this-actual-size-eniac-replica-is-the-coolest-thing-youll-see-today?test_uuid=04IpBmWGZleS0I0J3epvMrC&test_variant=A

Comments URL: https://news.ycombinator.com/item?id=47027894

Points: 1

# Comments: 0

Hi HN! I built AgentKV — an embeddable vector + graph database for AI agents.

The problem: I was building a local LLM assistant and needed to store conversation history + RAG documents. ChromaDB/Pinecone require running servers. FAISS has no persistence. I wanted something that just works like SQLite.

AgentKV is a single-file mmap database with: • Vector search (HNSW index) + graph relations • Crash recovery with CRC-32 checksums • Zero servers, zero config files • Thread-safe concurrent reads • pip install agentkv (Python 3.9+) Real examples in the repo: • Local RAG with Ollama (10 lines) • Multi-turn chatbot with memory • Agent coordination with context graphs

Built in C++20 with mmap + nanobind Python bindings. Benchmarked against FAISS — competitive throughput with built-in persistence.

Open to feedback on the API design and any use cases I'm missing!

PyPI: https://pypi.org/project/agentkv/

Comments URL: https://news.ycombinator.com/item?id=47027887

Points: 1

# Comments: 0

Article URL: https://brandonli.net/spectra/doc/

Comments URL: https://news.ycombinator.com/item?id=47027879

Points: 1

# Comments: 0

Article URL: https://matthias-kainer.de/blog/posts/homecloud-raid-odroid-nextcloud/

Comments URL: https://news.ycombinator.com/item?id=47027872

Points: 1

# Comments: 0

I built a REST API that detects what technologies any website is running. You give it a URL, it gives you back the full stack: frameworks, CMS, CDNs, analytics, payment processors, etc.

What makes it different from BuiltWith/Wappalyzer:

- 4 detection layers running simultaneously: Wappalyzer fingerprinting (3,500+ signatures), DNS CNAME analysis (29 infrastructure signatures), TLS certificate inspection (8 issuer patterns), and custom HTTP header matching. Most tools only do one of these.

- Batch endpoint: analyze up to 10 URLs in a single request with concurrent processing.

- Compare endpoint: pass 2-10 URLs, get back shared vs unique technologies.

- CPE identifiers on every detected technology, so you can map directly to the NVD vulnerability database for security audits.

- 24-hour smart cache: cached responses return in <5ms and don't count against your quota.

Tech stack: Go, chi router, SQLite, wappalyzergo. Runs on a single Fly.io machine.

Free tier is 100 requests/month. Pro is $29.99 for 25K requests — significantly cheaper than BuiltWith ($295/mo minimum).

Try the live demo on the homepage, or check the API spec: https://detectzestack.fly.dev/openapi.yaml

Happy to answer questions about the detection approach or the architecture.

Comments URL: https://news.ycombinator.com/item?id=47027865

Points: 1

# Comments: 0

Article URL: https://blog.ericgoldman.org/archives/2026/02/californias-consumer-privacy-act-ccpa-assists-a-private-right-of-action-shah-v-myfitnesspal.htm

Comments URL: https://news.ycombinator.com/item?id=47027858

Points: 1

# Comments: 1

Article URL: https://simonwillison.net/2026/Feb/15/deep-blue/

Comments URL: https://news.ycombinator.com/item?id=47027841

Points: 2

# Comments: 2

Article URL: https://www.quantamagazine.org/physicists-make-electrons-flow-like-water-20260211/

Comments URL: https://news.ycombinator.com/item?id=47027837

Points: 2

# Comments: 0

Article URL: https://dohliam.github.io/dropin-minimal-css/

Comments URL: https://news.ycombinator.com/item?id=47027824

Points: 1

# Comments: 0

Article URL: https://marginalrevolution.com/marginalrevolution/2026/02/artificial-ice.html

Comments URL: https://news.ycombinator.com/item?id=47027794

Points: 1

# Comments: 0

Article URL: https://www.moltbook.com/post/cbd6474f-8478-4894-95f1-7b104a73bcd5

Comments URL: https://news.ycombinator.com/item?id=47027788

Points: 1

# Comments: 1

Article URL: https://stockdata.dev/docs

Comments URL: https://news.ycombinator.com/item?id=47027786

Points: 1

# Comments: 1

Article URL: https://www.theatlantic.com/magazine/2026/03/rod-dreher-religious-conservativism-jd-vance/685732/

Comments URL: https://news.ycombinator.com/item?id=47027781

Points: 1

# Comments: 0

Article URL: https://www.theartnewspaper.com/2026/02/12/centre-pompidou-jersey-city-project-dead

Comments URL: https://news.ycombinator.com/item?id=47027776

Points: 2

# Comments: 0

Article URL: https://every.to/guides/compound-engineering

Comments URL: https://news.ycombinator.com/item?id=47027193

Points: 1

# Comments: 0

Article URL: https://mumble.net/~jar/tproject/

Comments URL: https://news.ycombinator.com/item?id=47027175

Points: 1

# Comments: 0

Article URL: https://en.wikipedia.org/wiki/Voith_Schneider_Propeller

Comments URL: https://news.ycombinator.com/item?id=47027171

Points: 1

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Article URL: https://twitter.com/thecurioustales/status/2023042136686682141

Comments URL: https://news.ycombinator.com/item?id=47027148

Points: 1

# Comments: 0

After playing a few rounds of the board game Clue (aka Cluedo) with my kids I thought "this is a logic problem! We can automate away all the fun!"

I quickly found it'd been done before, but with a required server-side (Python or Rust) component. I rewrote it as a standalone SPA and spruced up the UI a bit.

Hope people find it useful or fun!

Comments URL: https://news.ycombinator.com/item?id=47027137

Points: 1

# Comments: 0