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Show HN: Reckoner – a semantic browser for structured data

https://reckoner-production.up.railway.app/
2•abk9811•39m ago

Comments

abk9811•37m ago
I’ve been building a semantic workbench called Reckoner over the past year.

The core idea is treating datasets less like rigid tables and more like navigable semantic spaces you can define, refine, and compare through constraints and set operations.

The demo currently supports:

* semantic narrowing across 5W1H dimensions * trie-style value exploration * set ops (union/intersection/diff) * SRF semantic bundle import/export * DuckDB/Postgres-backed datasets

A major goal is reducing the cognitive friction between humans and structured information systems, especially for domain experts who understand the data deeply but aren’t SQL specialists.

Influences are very much Engelbart / Kay / Hopper style augmentation thinking.

Currently running as a Railway demo; a packaged Tauri desktop build is the next step.

Demo: https://reckoner-production.up.railway.app/

GitHub: https://github.com/peirce-lang

Railway Is Down

https://status.railway.com?resubmit=hn
3•mahmedtan•3m ago•1 comments

Ask HN: How would you find early users for an AI trading assistant before MVP?

1•pkpie1234•3m ago•0 comments

Researchers who use hallucinated references to face ArXiv ban

https://www.nature.com/articles/d41586-026-01595-5
1•gnabgib•3m ago•0 comments

Ask HN: Are toiled rolls the same everywhere?

1•bjourne•3m ago•0 comments

All non-drone militaries are obsolete

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Is Claude Code going to cost $100/month? Probably not–it's all confusing

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1•birdculture•6m ago•0 comments

DNA Through the Eyes of a Coder

https://berthub.eu/articles/posts/amazing-dna/
1•widowlark•13m ago•0 comments

Google Cloud Auto-Banned Railway.app Account – Major Railway Outage

https://twitter.com/acgfbr/status/2056866780866351323
8•kennysmoothx•14m ago•0 comments

Stop babysitting your AI agents

https://agentrail.app
1•railbuilder•15m ago•1 comments

Railway Is Having a Major Outage

https://status.railway.com/#/
8•kgraves•15m ago•0 comments

Why College Grads Are Booing Their Commencement Speakers

https://www.nytimes.com/2026/05/18/opinion/ai-boo-commencement-speeches.html
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Android CLI Now Stable 1.0

https://android-developers.googleblog.com/2026/05/android-cli-stable-1-0-agent-development.html
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Yet Another AI Teammate

https://yaat.sh/
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Intelligent eyewear is coming this fall

https://blog.google/products-and-platforms/platforms/android/android-xr-io-2026/
3•decimalenough•25m ago•0 comments

Build managed agents with the Gemini API

https://blog.google/innovation-and-ai/technology/developers-tools/managed-agents-gemini-api/
1•ddl•25m ago•1 comments

Lighthouse Attention

https://nousresearch.com/lighthouse-attention
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1•connorrandazzo•29m ago•0 comments

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https://a16zcrypto.com/posts/article/state-of-crypto-report-2025/
2•Anon84•35m ago•0 comments

Trump Mobile has a real phone, but it may also have a real data leak

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3•bilekas•38m ago•0 comments

Trusted Publishing for NPM Packages

https://docs.npmjs.com/trusted-publishers/
1•healsdata•39m ago•0 comments

Show HN: Reckoner – a semantic browser for structured data

https://reckoner-production.up.railway.app/
2•abk9811•39m ago•1 comments

Ask HN: Natural Language App Testing?

6•devstein•42m ago•0 comments

Google's SynthID AI watermarking tech is being adopted by OpenAI, Nvidia

https://arstechnica.com/google/2026/05/googles-synthid-ai-watermarking-tech-is-being-adopted-by-o...
3•jonbaer•42m ago•0 comments

Agentic PCB Design Sucks

https://github.com/hpm-registry/registry
2•JoonSPP•43m ago•1 comments

Remove AI Watermarks

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31•janalsncm•47m ago•20 comments

Show HN: Remindy – A Spotlight-style reminder app for Mac

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RemotePower – Self-hosted Linux fleet manager (no database, pure Python)

https://github.com/tyxak/remotepower
1•tyxak•50m ago•1 comments