What Is a Nomogram and Why Would It Interest Me?
20 by Eridanus2 | 4 comments on Hacker News.
Friday, 26 June 2026
New top story on Hacker News: Ask HN: Is "no source code was copied" still a sufficient copyright defense?
Ask HN: Is "no source code was copied" still a sufficient copyright defense?
17 by oscgam1 | 13 comments on Hacker News.
We are all familiar with the Corgi event: https://ift.tt/XHwKOkb With the barrier to create new apps having dropped significantly thanks to LLMs, I am seeing more cases about copyright and unfair competition. I've seen and participated in some of these cases. Usually expert witnesses are required. Curious to hear the community stance on this one. "Now software developers are feeling what authors and artist felt". https://ift.tt/OQxKGlX There are several claims of: Copying UI is Ok, your product is not undifferentiated enough. Here is a legal assessment of the situation: https://ift.tt/UT2qXui
17 by oscgam1 | 13 comments on Hacker News.
We are all familiar with the Corgi event: https://ift.tt/XHwKOkb With the barrier to create new apps having dropped significantly thanks to LLMs, I am seeing more cases about copyright and unfair competition. I've seen and participated in some of these cases. Usually expert witnesses are required. Curious to hear the community stance on this one. "Now software developers are feeling what authors and artist felt". https://ift.tt/OQxKGlX There are several claims of: Copying UI is Ok, your product is not undifferentiated enough. Here is a legal assessment of the situation: https://ift.tt/UT2qXui
Thursday, 25 June 2026
New top story on Hacker News: Show HN: OpenKnowledge – open source AI-first alternative to Obsidian/Notion
Show HN: OpenKnowledge – open source AI-first alternative to Obsidian/Notion
27 by engomez | 5 comments on Hacker News.
Hi HN, Nick here. We’re launching OpenKnowledge ( https://ift.tt/VszKFBD ), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and Cursor. Available as MacOS app or CLI. Fully free/local and OSS ( https://ift.tt/4hb6eaf ). We built this because we wanted a “Google docs” like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true “what you see is what you get” UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes shape as: 1. A MacOS app with a file navigator, the WYSIWYG editor, and link explorer. 2. Integrations with the Claude, Codex, and Cursor desktop apps. The agents can open an OpenKnowledge editor within their embedded web browsers for a side-by-side experience. 3. Built-in mcps, skills, and RAG for LLM-wiki and “AI Second Brain” scenarios + spec writing 4. An embedded terminal and CLI for TUI-first users OSS stack includes: Tiptap/prosemirror, CodeMirror, yjs (CRDT), Electron (MacOS app), Orama, remark/rehype/micromark/mdast, @pierre/trees On the architecture side, the interesting eng. challenges included: 1. A pipeline to convert ProseMirror to markdown in a bidirectional lossless way. ProseMirror uses ASTs, which are not designed to have byte-fidelity. 2. A dual-observer CRDT to keep the ProseMirror and markdown state in-sync. The CRDT + git also power a collaborative experience that shows what Agents are doing in the markdown, have undo/redo, and version history. The “Share” and cloud-sync functionality are geared for team collaboration. They feel “no-code” but leverage git/GitHub under the hood, which also means data stays fully private. In that spirit, we made OpenKnowledge open source for anybody who’s curious or who’d like to contribute. We’re actively thinking about plugins/extensibility and what’s next. If you have suggestions or feedback, would love to hear it.
27 by engomez | 5 comments on Hacker News.
Hi HN, Nick here. We’re launching OpenKnowledge ( https://ift.tt/VszKFBD ), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and Cursor. Available as MacOS app or CLI. Fully free/local and OSS ( https://ift.tt/4hb6eaf ). We built this because we wanted a “Google docs” like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true “what you see is what you get” UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes shape as: 1. A MacOS app with a file navigator, the WYSIWYG editor, and link explorer. 2. Integrations with the Claude, Codex, and Cursor desktop apps. The agents can open an OpenKnowledge editor within their embedded web browsers for a side-by-side experience. 3. Built-in mcps, skills, and RAG for LLM-wiki and “AI Second Brain” scenarios + spec writing 4. An embedded terminal and CLI for TUI-first users OSS stack includes: Tiptap/prosemirror, CodeMirror, yjs (CRDT), Electron (MacOS app), Orama, remark/rehype/micromark/mdast, @pierre/trees On the architecture side, the interesting eng. challenges included: 1. A pipeline to convert ProseMirror to markdown in a bidirectional lossless way. ProseMirror uses ASTs, which are not designed to have byte-fidelity. 2. A dual-observer CRDT to keep the ProseMirror and markdown state in-sync. The CRDT + git also power a collaborative experience that shows what Agents are doing in the markdown, have undo/redo, and version history. The “Share” and cloud-sync functionality are geared for team collaboration. They feel “no-code” but leverage git/GitHub under the hood, which also means data stays fully private. In that spirit, we made OpenKnowledge open source for anybody who’s curious or who’d like to contribute. We’re actively thinking about plugins/extensibility and what’s next. If you have suggestions or feedback, would love to hear it.
Wednesday, 24 June 2026
New top story on Hacker News: NSA lost access to Mythos amid Anthropic dispute
NSA lost access to Mythos amid Anthropic dispute
53 by thm | 16 comments on Hacker News.
Unlocked: https://ift.tt/u1cp0qM...
53 by thm | 16 comments on Hacker News.
Unlocked: https://ift.tt/u1cp0qM...
Tuesday, 23 June 2026
Monday, 22 June 2026
New top story on Hacker News: Bain tests software takeover targets by vibecoding AI replicas
Bain tests software takeover targets by vibecoding AI replicas
9 by macleginn | 18 comments on Hacker News.
https://ift.tt/bResPvB
9 by macleginn | 18 comments on Hacker News.
https://ift.tt/bResPvB
Sunday, 21 June 2026
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