The Fed says this is a cube of $1M. They're off by half a million

Show HN: Spegel, a Terminal Browser That Uses LLMs to Rewrite Webpages

OpenFLOW – Quickly make beautiful infrastructure diagrams local to your machine

Figma files for proposed IPO

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Ask HN: Who is hiring? (July 2025)

Feasibility study of a mission to Sedna - Nuclear propulsion and solar sailing

Fakespot shuts down today after 9 years of detecting fake product reviews

Code-GUI bidirectional editing via LSP

Building a Personal AI Factory

Sam Altman Slams Meta's AI Talent Poaching: 'Missionaries Will Beat Mercenaries'

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Show HN: Jobs by Referral: Find jobs in your LinkedIn network

Converting a large mathematical software package written in C++ to C++20 modules

Effectiveness of trees in reducing temperature, outdoor heat exposure in Vegas

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Ask HN: Who wants to be hired? (July 2025)

I keep running in the same problem of each AI app “remembers” me in its own silo. ChatGPT knows my project details, Cursor forgets them, Claude starts from zero… so I end up re-explaining myself dozens of times a day across these apps.The deeper problem1. Not portable – context is vendor-locked; nothing travels across tools.2. Not relational – most memory systems store only the latest fact (“sticky notes”) with no history or provenance.3. Not yours – your AI memory is sensitive first-party data, yet you have no control over where it lives or how it’s queried.Demo video: <a href="https:&#x2F;&#x2F;youtu.be&#x2F;iANZ32dnK60" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;iANZ32dnK60</a>Repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;RedPlanetHQ&#x2F;core">https:&#x2F;&#x2F;github.com&#x2F;RedPlanetHQ&#x2F;core</a>What we built- CORE (Context Oriented Relational Engine): An open source, shareable knowledge graph (your memory vault) that lets any LLM (ChatGPT, Cursor, Claude, SOL, etc.) share and query the same persistent context.- Temporal + relational: Every fact gets a full version history (who, when, why), and nothing is wiped out when you change it—just timestamped and retired.- Local-first or hosted: Run it offline in Docker, or use our hosted instance. You choose which memories sync and which stay private.Try it- Hosted free tier (HN launch): <a href="https:&#x2F;&#x2F;core.heysol.ai">https:&#x2F;&#x2F;core.heysol.ai</a>- Docs: <a href="https:&#x2F;&#x2F;docs.heysol.ai&#x2F;core&#x2F;overview">https:&#x2F;&#x2F;docs.heysol.ai&#x2F;core&#x2F;overview</a>

Show HN: Core – open source memory graph for LLMs – shareable, user owned

Graph Theory Applications in Video Games

Australians to face age checks from search engines

All Good Editors Are Pirates: In Memory of Lewis H. Lapham

Hilbert's sixth problem: derivation of fluid equations via Boltzmann's theory

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Ask HN: Freelancer? Seeking freelancer? (July 2025)