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With rings, bands and sunglasses interface are popping up from various companies. Anyone trying to build software for it?

嗨，HN！ 我是正在构建ONYX数据室的团队成员之一。 我们在自己的融资过程中开始着手这个项目，并注意到许多数据室主要关注后期融资流程和预算，而忽视了早期和成长阶段创始人的需求。 让我们最感到突出的问题不是数据的缺乏，而是缺乏清晰度。作为创始人，我们能够看到文件被打开，但很难理解： - 哪些投资者是真正参与的，哪些只是随便浏览 - 哪些文件受到关注，哪些被跳过 - 尽职调查在哪些方面进展缓慢或产生了问题 ONYX专注于让这些变得更加清晰： - 无限的数据室和用户 - 分析功能，突出哪些投资者活跃，哪些文件被阅读 - 内置问答功能，使问题与相关文件保持关联 我们的目标不是增加更多的指标，而是帮助创始人优先处理后续事项，并了解在融资过程中应该花费时间的地方。 如果你想了解更多，可以访问： [https://onyxdataroom.com](https://onyxdataroom.com) 欢迎提出问题或分享其他人今天如何处理尽职调查和投资者信号的经验。 谢谢！

I built Catelingo, a small constraint-based checker that flags semantically impossible LLM outputs, independent of likelihood, retrieval, or chain-of-thought. Many failures (temporal inconsistencies, numeric impossibilities, semantic type clashes) are fluent and high-likelihood. Catelingo reframes “semantic validity” as constraint satisfiability, not plausibility. Intentionally minimal &amp; deterministic: - small sense-level lexicon - explicit constraint propagation (dependency-local) - verdict: SAT &#x2F; UNSAT &#x2F; UNKNOWN - optional degeneration rules for metaphor &#x2F; domain adaptation<p>Paper (Zenodo): <a href="https:&#x2F;&#x2F;doi.org&#x2F;10.5281&#x2F;zenodo.18148498" rel="nofollow">https:&#x2F;&#x2F;doi.org&#x2F;10.5281&#x2F;zenodo.18148498</a>

I built LightningProx - access Claude&#x2F;GPT-4 without API keys or accounts.<p>How it works:<p>1. Send request, get Lightning invoice (~5 sats) 2. Pay with any Lightning wallet 3. Get AI response<p>Payment = authentication. No keys to leak.<p>Python: pip install langchain-lightningprox<p>Site: <a href="https:&#x2F;&#x2F;lightningprox.com" rel="nofollow">https:&#x2F;&#x2F;lightningprox.com</a> Docs: <a href="https:&#x2F;&#x2F;lightningprox.com&#x2F;docs" rel="nofollow">https:&#x2F;&#x2F;lightningprox.com&#x2F;docs</a> GitHub: <a href="https:&#x2F;&#x2F;github.com&#x2F;unixlamadev-spec&#x2F;langchain-lightningprox" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;unixlamadev-spec&#x2F;langchain-lightningprox</a> Full writeup: <a href="https:&#x2F;&#x2F;medium.com&#x2F;@unixlamadev&#x2F;i-built-the-payment-layer-for-ai-agents-5fb2545c5272" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;@unixlamadev&#x2F;i-built-the-payment-layer-fo...</a>

A few years ago I thought Facebook Marketplace was a goldmine.<p>The messages never stopped. “Is this still available?” “Can I pick it up today?” “Very interested.”<p>On paper, demand looked insane.<p>In reality, most of it was fake.<p>I was selling higher ticket items and services to everyday people. Many of them had bad credit, unstable income, or financial stress. Facebook Marketplace put me directly in front of that audience, but it did not filter for ability to buy.<p>I confused attention with intent.<p>I spent hours responding, explaining, following up, and holding items. Deals would feel close, then fall apart at the last moment. Financing applications would fail. Cash buyers would disappear. People would ghost after long conversations.<p>At first I blamed the platform. Then I blamed the buyers.<p>Eventually I realized the problem was me.<p>I had built a system optimized for volume instead of qualification. Facebook Marketplace is incredible at creating conversations, but terrible at signaling seriousness. Bad credit was not the real issue. Unclear expectations were.<p>Many people reached out because it was easy, free, and low commitment. Not because they were ready or able to buy.<p>The failure taught me something important. You cannot scale sales on hope.<p>I had to change everything.<p>I tightened qualification early. I stopped treating every message as a lead. I asked uncomfortable questions sooner. I stopped chasing people who wanted possibilities instead of decisions.<p>That reduced my message count but increased my close rate.<p>The biggest lesson was this. Bad credit customers are not bad customers. But unqualified demand will burn you out faster than no demand at all.<p>Facebook Marketplace still works, but only if you respect what it is. It is a conversation engine, not a closing engine.<p>Once I stopped expecting it to be something it was not, my results improved and my stress dropped.<p>That failure probably saved me years of wasted effort.

created Crystalline Protocol. It treats the blockchain state not just as a key-value store, but as a mathematical set governed by the Axioms of Zermelo-Fraenkel set theory.<p>The PoC (written in Rust) demonstrates an &quot;Axiomatic Engine&quot; that enforces the Axiom of Regularity. It physically prevents circular dependencies (logical loops) at the VM level. If a transaction creates a cycle, the &quot;Logic Firewall&quot; rejects it before it can ever be executed.

I have been cranking out apps for the past few years and loving it. Then one morning a week or 2 ago I got a little ambitious and decided to build a desktop email client because outlook was so-so and superhuman was ridiculously expensive.<p>Is this a big mistake? Am I wasting my time ?<p>So far I have Microsoft and Google working and I can do the normal email interaction read, reply, archive etc. I also got local AI working and training on your emails (all local).<p>Let me know your thoughts.<p>PS: my target audience is developers not the general public

RevisionDojo is a YC-backed test prep company ($3.4M raised) that sells International Baccalaureate (IB) test prep. Over the past year, users on r&#x2F;IBO sub-reddit have documented a pattern of unethical marketing practices:<p>*Astroturfing:* Coordinated campaigns where accounts pose as students sharing &quot;cheatsheets&quot; and &quot;predicted exam leaks.&quot; Other accounts then upvote, leave supportive comments, and ask follow-up questions—creating the illusion of organic student excitement. Multiple threads have exposed this pattern [1][2][3].<p>*Paid fake posts:* High school students report being offered payment to write promotional Reddit posts [4].<p>*Pressuring critics:* Users who post negative reviews report being contacted directly by company representatives, told it&#x27;s &quot;a shame&quot; they&#x27;re posting publicly [5]. Critical comments receive coordinated mass downvotes [6].<p>*Soliciting copyrighted materials:* They use TikTok influencers and fake reddit posts to persuade students to sell them official IB exam papers, violating IB policies [7].<p>The r&#x2F;IBO moderators are actively investigating [8].<p>These practices appear to be working great for them. Recently, they acquired OnePrep (oneprep.xyz), a free SAT prep tool that was already popular on r&#x2F;sat. Since the acquisition, the same manipulation tactics have been deployed at scale: 150 Trustpilot reviews in a window of a few days [9], and widespread coordinated Reddit manipulation—multiple accounts posting &quot;tips&quot; that recommend Oneprep, coordinated upvoting, and fake enthusiasm in comments. The most prominent example was a 2,000+ upvote post removed by moderators for manipulation, but it&#x27;s part of a sustained campaign across the subreddit.<p>*Sources:*<p>[1] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1p55qun&#x2F; [2] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1jsb00a&#x2F; [3] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1ohcohi&#x2F; [4] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1p55qun&#x2F;comment&#x2F;nqmhal3&#x2F; [5] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1my1ajx&#x2F;comment&#x2F;na94upv&#x2F; [6] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1my1ajx&#x2F;comment&#x2F;na8zvs4&#x2F; [7] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1mej900&#x2F; [8] https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;IBO&#x2F;comments&#x2F;1my1ajx&#x2F;comment&#x2F;nagdkl5&#x2F; [9] https:&#x2F;&#x2F;www.trustpilot.com&#x2F;review&#x2F;oneprep.xyz

Hi HN,<p>I’m a former C++ dev turned Product Manager.<p>I’ve noticed many engineers struggle with the &quot;politics&quot; side of things when they become Leads. To help with this, I’m building a text-based simulator.<p>It is NOT an AI chatbot. It is a hand-crafted, branching narrative (logic tree) based on real experiences.<p>I just launched the first scenario: &quot;The Backchannel VP.&quot;<p>The Setup: Your VP Engineering is bypassing you and giving tasks directly to your juniors, causing chaos.<p>Your Goal: Stop the backchanneling without getting fired.<p>It’s a short, specific puzzle. I’d love to know if you think the &quot;Correct&quot; path I designed matches your real-world experience, or if I’m off base.<p>Link: <a href="https:&#x2F;&#x2F;apmcommunication.com&#x2F;scenario&#x2F;backchannel-vp" rel="nofollow">https:&#x2F;&#x2F;apmcommunication.com&#x2F;scenario&#x2F;backchannel-vp</a>