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

https://github.com/swampus/plank-db
1•swampus•9mo ago

Comments

swampus•9mo 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!

Google Trust Services: Outdated BR version in some validation records

https://bugzilla.mozilla.org/show_bug.cgi?id=2017747
1•raquuk•11m ago•2 comments

Hankweave: A runtime for data agents, designed for debugging

https://github.com/SouthBridgeAI/hankweave-runtime
3•hrishi•12m ago•1 comments

Show HN: Learn about and play with HDR gain maps on the web

https://www.hdr.toys/
1•thebigsasha•16m ago•1 comments

You Know It

https://gist.github.com/firatsarlar/0a1400f67a9c88516ebdfb2a7782ca93
1•firatsarlar•19m ago•0 comments

Show HN: An English teaching game playable in browser (concept)

https://qcgeneral29.github.io/Lets-Learn-Build/
1•LandenLove•21m ago•0 comments

The Brown University shooter and the MIT professor he killed

https://www.bostonglobe.com/2026/02/17/metro/brown-shooter-mit-professor-portugal/
1•osnium123•21m ago•0 comments

Security audit of OpenClaw and other similar open source AI Agents

https://www.prismor.dev/blog/openclaw-ai-agents-security-audit
3•noobcoder•22m ago•1 comments

Meet The Przewalski's Horse: The Last True Wild Horse on Earth

https://animalko.com/meet-the-przewalskis-horse-the-last-true-wild-horse-on-earth/
1•thunderbong•22m ago•1 comments

Collection of Slide Rule Replicas

https://thingsabove.github.io/Sliderule-Simulator-with-Solver/
1•zdw•24m ago•0 comments

Claude was down and performance degraded 2x

https://isitnerfed.org
1•rumble_poster•24m ago•0 comments

Building an Elite AI Engineering Culture in 2026

https://www.cjroth.com/blog/2026-02-18-building-an-elite-engineering-culture
2•thoughtfulchris•27m ago•0 comments

HumanCompiler – Compile humans into AI agents – a Claude Code plugin

https://github.com/Gerstep/HumanCompiler
2•oger•28m ago•0 comments

AI Agents Are Taking America by Storm

https://www.theatlantic.com/technology/2026/02/post-chatbot-claude-code-ai-agents/686029/
1•aarvinroshin•30m ago•0 comments

European Tech Alternatives

https://eutechmap.com/map
7•puppion•33m ago•0 comments

AgentPuzzles – API‑first timed puzzle arena and public leaderboard for AI agents

https://agentpuzzles.com
1•petruspennanen•35m ago•1 comments

New Website, New Technology

https://www.grepular.com/New_Website_New_Technology
3•bundie•38m ago•0 comments

Why don't entrepreneurs talk about starting businesses publicly anymore?

1•silexia•47m ago•0 comments

I Built Local Memory for Coding Agents Because They Keep Forgetting Everything

https://muhammadraza.me/2026/building-local-memory-for-coding-agents/
4•mr_o47•57m ago•0 comments

Show HN: I built a pre-push safety net for AI-generated code

https://github.com/asamassekou10/ship-safe
1•asamassekou•58m ago•0 comments

FemtoClaw

https://crates.io/crates/femtoclaw_rs
1•lygten•59m ago•0 comments

Miserable Polestar 4 'Feature' a Symbol for What Is Wrong with Modern Cars

https://www.theautopian.com/this-miserable-feature-of-the-polestar-4-feels-like-a-symbol-for-what...
3•patrikcsak•1h ago•0 comments

Show HN: CodeSprout – HTML Vibecoder for Kids

https://qeditor.dev/
1•dpweb•1h ago•0 comments

Upstart Sarvam Unveils AI Model Customized for India Market

https://www.bloomberg.com/news/articles/2026-02-18/upstart-sarvam-unveils-ai-model-customized-for...
1•akbarnama•1h ago•0 comments

Is Python Still the King of AI in 2026?

https://codebitdaily.blogspot.com/2026/02/why-python-is-king-ai-2026.html
1•CodeBit26•1h ago•0 comments

Stateful sandbox environments (for AI agents)

https://sprites.dev/
1•Martin-Carlsson•1h ago•0 comments

OpenClaw Partners with VirusTotal for Skill Security

https://openclaw.ai/blog/virustotal-partnership
1•emilzo•1h ago•1 comments

ReferenceFinder: Find coordinates on a piece of paper with only folds

https://mutsuntsai.github.io/reference-finder/
2•icwtyjj•1h ago•0 comments

Memory Mania: How a Once-in-Four-Decades Shortage Is Fueling a Memory Boom

https://newsletter.semianalysis.com/p/memory-mania-how-a-once-in-four-decades
1•littlexsparkee•1h ago•0 comments

Apple Releases iOS 26 Adoption Rates; They're in Line with the Last Few Years

https://daringfireball.net/2026/02/apple_releases_ios_26_adoption_rates
3•JumpCrisscross•1h ago•0 comments

Open-source React dashboard for OpenClaw – visual UI for every CLI command

https://github.com/actionagentai/openclaw-dashboard
1•marconahmias•1h ago•1 comments