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PlankDB – A Quantum-Powered Key-Value Store with Grover (Spring Boot)

https://github.com/swampus/plank-db
1•swampus•1y ago

Comments

swampus•1y ago
Hi HN!

We’ve built *PlankDB*, an experimental key-value database that supports quantum-powered search via Grover's algorithm.

It combines: - Quantum search using IBM Qiskit (Grover's Algorithm) - Java 17 + Spring Boot + Clean Architecture - RESTful API with Swagger - Support for local (simulated) and IBM remote quantum execution

The quantum part isn't just a gimmick — it performs a *probabilistic search* over inserted keys using Grover’s quadratic speedup. We also support classical search for comparison.

The project is fully open-source and actively maintained: https://github.com/swampus/plank-db

Would love your feedback — ideas, bugs, or quantum jokes are all welcome!

Altermagnets can turn neighbouring materials altermagnetic, too

https://physicsworld.com/a/altermagnets-can-turn-neighbouring-materials-altermagnetic-too/
1•thunderbong•44s ago•0 comments

Show HN: FastUbu – An Ultrafast Video Archive

https://fastubu.com/
1•lukeigel•58s ago•0 comments

Show HN: Quake in the browser, with procedurally generated levels

https://leereilly.net/quakelike/
2•lee337•1m ago•0 comments

Neutron Holdings Inc [Lime] S-1

https://www.sec.gov/Archives/edgar/data/1699963/000162828026032523/neutronholdingsinc-sx1.htm
1•toomuchtodo•2m ago•1 comments

Seirawan Chess [video]

https://www.youtube.com/watch?v=Nht2TqabPr0
1•nomilk•2m ago•0 comments

Fused Agent Kernel: 4x Tuned SOTA on Benchmarks. MIT OSS

https://github.com/anthony-chaudhary/fak
1•anthonysarkis•3m ago•0 comments

Small island nation tries bold tech education strategy

https://www.theregister.com/offbeat/2026/06/22/small-island-nation-tries-bold-tech-education-stra...
2•rbanffy•3m ago•0 comments

How to build an AI agent in 2026: a practical step-by-step guide

https://www.execlave.com/blog/how-to-build-an-ai-agent
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Artificial

https://www.inkandswitch.com/tangents/artificial/
1•surprisetalk•5m ago•0 comments

Darktable 5.6.0 Release

https://github.com/darktable-org/darktable/releases/tag/release-5.6.0
1•psibi•5m ago•0 comments

Show HN: Ghtrack: track GitHub Actions workflow duration in GitHub Pages

https://github.com/hatsu38/ghtrack
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Mars Is Spending Millions to Give M&M's a MAHA Makeover

https://www.wsj.com/business/mars-is-spending-millions-to-give-m-ms-a-maha-makeover-2fa1bb88
1•ksec•7m ago•1 comments

Make GitHub Actions Do More for You

https://mikemcquaid.com/make-github-actions-do-more-for-you/
2•mikemcquaid•7m ago•1 comments

Stressed-Out Soil Bacteria Adapt to Environmental Conditions

https://www.caltech.edu/about/news/stressed-out-soil-bacteria-adapt-to-environmental-conditions
1•gmays•8m ago•0 comments

Two Heads Are Better Than One: Run Many AI Agents, Merge One Auditable Result

https://medium.com/@Koukyosyumei/two-heads-are-better-than-one-run-many-coding-agents-merge-one-a...
1•syumei•9m ago•0 comments

Stripe Directory

https://docs.stripe.com/directory
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Self-hosting High Availability is just Backups

https://blog.greg.technology/2026/06/21/self-hosting-high-availability-is-just-backups.html
2•gregsadetsky•9m ago•0 comments

AI Agent Governance vs. Observability: What's the Difference?

https://www.execlave.com/blog/ai-agent-governance-vs-observability
1•brl1313•9m ago•0 comments

"Buy Canadian" won't fix defence procurement until Ottawa defines "Canadian"

https://policyoptions.irpp.org/2026/06/canadian-defence-procurement-software/
1•ClearwayLaw•10m ago•1 comments

DeepMind AI Control Roadmap [pdf]

https://storage.googleapis.com/deepmind-media/DeepMind.com/Blog/securing-the-future-of-ai-agents/...
1•leopoldj•10m ago•1 comments

Inventing the Future, One Lisp Machine at a Time

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2•pamoroso•10m ago•0 comments

Show HN: Sturnus – OpenAI-compatible LLM proxy routing to the fastest provider

https://github.com/sturnus-dev/sturnus
1•dannyboland•10m ago•0 comments

Developers react to AI-scented blog posts

https://writethatblog.substack.com/p/dev-reaction-to-ai-blog-posts
1•mooreds•10m ago•0 comments

'I got crushed': AI giants are funding ad wars in races across the country

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2•1vuio0pswjnm7•11m ago•0 comments

Economists have long pushed for prediction markets

https://www.cnn.com/2026/06/21/business/prediction-markets-economists
1•mooreds•12m ago•0 comments

Nff_: Open-source Claude Code for hardware

https://github.com/GLechevalier/nff
2•GL26•12m ago•0 comments

OpenAI hit with multistate probe into possible user harm as its IPO looms

https://apnews.com/article/openai-chatgpt-subpoena-attorneys-general-probe-a95894407773307fae8ae3...
2•1vuio0pswjnm7•13m ago•0 comments

Oxide computer 3D rack guided tour

https://explorer.oxide.computer/
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ZCode – Simple, Fast, Vibe‑Ready

https://zcode.z.ai/en
3•edg5000•15m ago•0 comments

The road to Unreal Engine 6

https://www.unrealengine.com/news/the-road-to-ue-6
1•ksec•15m ago•0 comments