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

https://github.com/swampus/plank-db
1•swampus•10mo ago

Comments

swampus•10mo 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!

Powell, Bessent discussed Mythos AI cyber threat with major U.S. banks

https://www.cnbc.com/2026/04/10/powell-bessent-us-bank-ceos-anthropic-mythos-ai-cyber.html
1•mooreds•2m ago•0 comments

Textbooks and Methods of Note-Taking in Early Modern Europe (2008)

https://dash.harvard.edu/server/api/core/bitstreams/7312037d-e342-6bd4-e053-0100007fdf3b/content
1•mooreds•3m ago•0 comments

Rescuers save sea turtle discovered stranded upside down on beach

https://www.abc.net.au/news/2026-04-05/lifesaving-turned-turtle-rescue-at-urunga/106531572
2•mooreds•4m ago•0 comments

More Vetoes, Less Vision

https://h3manth.com/scribe/more-vetoes-less-vision/
1•init0•6m ago•0 comments

apmc – measure hardware performance counters – perf stat for macOS

https://github.com/0ax1/apmc
1•0alxdte1•8m ago•0 comments

Refusal to Review

https://irisvanrooijcogsci.com/2026/04/08/refusal-to-review/
1•jruohonen•9m ago•0 comments

Show HN: Lazyagent – a local TUI for watching what your coding agents are doing

https://github.com/chojs23/lazyagent
4•neozz•12m ago•0 comments

Ask HN: Have you found a fulfilling way to handle multi-line text with JSON?

1•seph-reed•13m ago•0 comments

Show HN: Claude Code Context – Auto-resume Claude Code sessions per Git branch

https://github.com/paterlinimatias/claude-cc
1•paterlinimatias•13m ago•0 comments

Ask HN: How do you find / validate niches for an online business?

1•shakermaker83•15m ago•0 comments

Shipping Fast Requires a High Degree of Trust

https://www.shayon.dev/post/2024/7/shipping-fast-requires-a-high-degree-of-trust/
1•shayonj•16m ago•1 comments

Why Your SaaS Offer Doesn't Convert (things you can fix now) [video]

https://www.youtube.com/watch?v=GORVmSCNkbA
1•riley-i•16m ago•0 comments

Show HN: Project Parliament – a multi-model workflow for choosing OSS ideas

https://github.com/hardstone1998/Project-Parliament
1•1395291968•16m ago•0 comments

Apple's UK age verification brings identity checks to the iPhone

https://proton.me/blog/apple-uk-age-verification-iphone
4•akyuu•16m ago•1 comments

Iran's Nuclear Program Has Survived, Posing Problem for U.S. Negotiators

https://www.wsj.com/world/middle-east/iran-uranium-stockpile-strategy-333bcc1e
4•ceejayoz•17m ago•0 comments

Kissinger 2 (a competitor of Unifont with 8×16 and 16×16 glyphs)

https://typedesign.replit.app/kissinger2.html
2•PiotrGrochowski•20m ago•1 comments

5,877 Messages Later: Lessons in Controlling Agents with Telegram

https://vita-reports.ham.xyz/s/6020b089f389
1•zackham•21m ago•0 comments

The Center Has a Bias

https://lucumr.pocoo.org/2026/4/11/the-center-has-a-bias/
1•doppp•21m ago•0 comments

Mugib – AI agents that work across every channel–chat, voice, web, and live data

https://mugib.com/
1•anaspro•22m ago•0 comments

Why IBM Turned to Microsoft for Basic

https://nemanjatrifunovic.substack.com/p/why-ibm-turned-to-microsoft-for-basic
2•whobre•22m ago•0 comments

Malicious Job Assessments

https://thecout.com/blog/flexibleferret/
2•taubek•23m ago•0 comments

Show HN: The cutest WhatsApp concierge for dog friendly travel

https://kaliconcierge.com/
1•BuleBule•28m ago•1 comments

Rust Coreutils v0.8.0: performance gains, WebAssembly support, online playground

https://github.com/uutils/coreutils/releases
1•maxloh•29m ago•0 comments

Show HN: Run AI coding agents in real sandboxes, not Git worktrees

https://superhq.ai/
2•harshdoesdev•30m ago•0 comments

The Future of Everything Is Lies, I Guess: Psychological Hazards

https://aphyr.com/posts/416-the-future-of-everything-is-lies-i-guess-psychological-hazards
2•aphyr•31m ago•0 comments

Show HN: Accessyo – CLI to Debug DNS, TCP, TLS and HTTP Issues

https://www.npmjs.com/package/accessyo
1•tmszcncl•34m ago•0 comments

X slashes aggregator payouts to boost original creators

https://www.nbcnews.com/tech/social-media/x-slashes-aggregator-payouts-boost-original-creators-rc...
3•ceejayoz•35m ago•1 comments

Error Translation in Go Services

https://rednafi.com/go/error-translation/
2•Brajeshwar•36m ago•0 comments

PSA Crypto: The P is for Portability

https://danielmangum.com/posts/psa-crypto-portability/
1•hasheddan•36m ago•0 comments

The Sad Decline of Trenchant Exec Who Stole and Sold Zero Days to Russian Buyer

https://www.zetter-zeroday.com/trenchant-exec-says-he-had-depression-money-troubles-when-he-decid...
1•badcryptobitch•37m ago•0 comments