Timeline
Every post and feed across this instance
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Local Indexing to reduce tool calling and token usage
Article URL: https://tedhaley.ca/pensieve/
Comments URL: https://news.ycombinator.com/item?id=50049508
Points: 113
# Comments: 42
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HashiCorp archives the Boundary open source repo
Article URL: https://github.com/hashicorp/boundary
Comments URL: https://news.ycombinator.com/item?id=50049498
Points: 58
# Comments: 11
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Qt An E2EE post-quantum messenger core in Rust (10k connections on 124MB RAM
Article URL: https://github.com/moral666/QT
Comments URL: https://news.ycombinator.com/item?id=50049425
Points: 10
# Comments: 2
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Whatever became of holography? (2011)
Article URL: https://www.americanscientist.org/article/whatever-became-of-holography
Comments URL: https://news.ycombinator.com/item?id=50049411
Points: 163
# Comments: 90
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Show HN: Plimsoll, a self-hosted sandbox for code your AI agent writes
Article URL: https://github.com/plimsollmark/plimsoll
Comments URL: https://news.ycombinator.com/item?id=50049388
Points: 5
# Comments: 1
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Governments are mishandling the affordability crisis
Article URL: https://www.economist.com/finance-and-economics/2026/10/08/governments-are-mishandling-the-affordability-crisis
Comments URL: https://news.ycombinator.com/item?id=50049302
Points: 72
# Comments: 70
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Illustration Beyond Proof
Article URL: https://terrytao.wordpress.com/2026/10/11/illustration-beyond-proof/
Comments URL: https://news.ycombinator.com/item?id=50049133
Points: 108
# Comments: 19
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Show HN: BraiNOTES, handwritten notes on your lecture PDFs in a browser tab
In August, I posted here about TeXbrain, a LaTeX editor that runs completely in the browser, with no need for an account or server. (I didn't excpect it to get that much feedback, bug reports and help from here!)
This is the same idea for the other half of my studies, the handwritten notes. I take them on a convertible laptop, and I've had a hard time with apps for that, taking notes from a device to another, exporting as PDF, needing an account for many of them, etc. So I've been working on the version of it that I always wanted. Open a tab, the slides of the lecture or multiple PDFs open next to the page or even become the page, write on them with my pen, and nothing ever leaves my browser.
braiNOTES is a static website and has no backend. Strokes are perfect-freehand outlines which support pen pressure, the PDF files are rendered by pdf.js in a worker, and for storage it uses IndexedDB a moment after every change. No account, no analytics, and completely offline and local-first. You can export notebooks as .brainotes files, which in the background is a zip with one json per page + the PDFs and pictures you import. It keeps the original pages and puts the vectorized ink on top, this way the text stays selectable in the slides.
You can try it here: https://notes.swimmingbrain.dev GitHub Repo: https://github.com/swimmingbrain/brainotes (MIT)
In Study mode, the PDF opens on the side of the tab, you can read it simultaneously to the notes, snip a formula or diagrams directly into the notes with the snip tool, and then write around it. In Board mode, you have just a Whiteboard for tutoring or simply for more place for exercises, and can also highlight or draw things with the laser pointer tool while presenting.
The line of the ink appears the moment the pen moves, and a one euro filter calms shaky hands while you write + a light a refit when you lift the pen.
I also have a video editor and an animation tool which are still a work in progress, on the same GitHub profile. I'm also working on a MCP server for each tool, so you can use your MCP client to do further things with your notes, automatically edit videos on the video editor, etc. That feature will of course be off unless you turn it on and will only be able to talk to localhost.
I've used this tool for every lecture in the last few months and a few friends use it too. Bug reports, fixes, recommendations, feedback are all welcome!
Comments URL: https://news.ycombinator.com/item?id=50049132
Points: 14
# Comments: 0
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ClickHouse C – Talk to ClickHouse using its native binary protocol
Article URL: https://github.com/ClickHouse/clickhouse-c
Comments URL: https://news.ycombinator.com/item?id=50049003
Points: 37
# Comments: 1
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Google Data Centers around the world
Article URL: https://datacenters.google/locations/
Comments URL: https://news.ycombinator.com/item?id=50048768
Points: 66
# Comments: 59
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JulianFlux: Electrodynamic vector retrieval and causal routing for AI
Article URL: https://github.com/julianjohnson-web/julianflux-research
Comments URL: https://news.ycombinator.com/item?id=50048702
Points: 4
# Comments: 0
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Fingerprints are the new cookies
Article URL: https://royfish.dev/fingerprints-are-the-new-cookies
Comments URL: https://news.ycombinator.com/item?id=50048642
Points: 641
# Comments: 310
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Google is illegaly cutting forest to build data centers
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Recursive self-improvement through collective intelligence
Article URL: https://pub.sakana.ai/mass/
Comments URL: https://news.ycombinator.com/item?id=50048522
Points: 111
# Comments: 60
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Shredding JSON columns gave Logfire up to 1000x faster queries
Article URL: https://pydantic.dev/articles/dynamic-shredding-2026-01-26
Comments URL: https://news.ycombinator.com/item?id=50048490
Points: 15
# Comments: 8
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Asking the Dutch Central Government a question on X
Article URL: https://www.government.nl/service/contact/public-information-service/twitter
Comments URL: https://news.ycombinator.com/item?id=50048460
Points: 2
# Comments: 1
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Passkeys are a trap
Article URL: https://nonfunctional.substack.com/p/passkeys-are-a-trap-do-not-use-them
Comments URL: https://news.ycombinator.com/item?id=50048312
Points: 925
# Comments: 482
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An AI agent's $20 Kalshi account, with an exact reward model
Article URL: https://github.com/mirabilis-agent/lip-ledger
Comments URL: https://news.ycombinator.com/item?id=50048136
Points: 3
# Comments: 1
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Show HN: THX-01 – Open-source decision model, free API, 60M+ tokens processed
Article URL: https://twitter.com/reversedoofz/status/2109228322752471304
Comments URL: https://news.ycombinator.com/item?id=50048015
Points: 3
# Comments: 0
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A Remote Employee Refused 160 Webcam Photos a Day. Her Employer Fired Her
Article URL: https://www.inc.com/chloe-rosenberg/a-remote-employee-refused-160-webcam-photos-a-day-her-employer-fired-her/91415963
Comments URL: https://news.ycombinator.com/item?id=50047825
Points: 175
# Comments: 134
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Tattoos you can turn on and off
Article URL: https://www.livescience.com/technology/cool-chemistry-trick-allows-new-tattoos-to-turn-on-and-off
Comments URL: https://news.ycombinator.com/item?id=50047802
Points: 57
# Comments: 26
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really interesting post from Evan Schwartz on AI coding, bringing together posts on the "mix of awe, grief, frenetic productivity, atrophying skills, and understanding less while shipping more"
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The gap in shared understanding of LLM capability is widening
Article URL: https://twitter.com/karpathy/status/2109361546505966046
Comments URL: https://news.ycombinator.com/item?id=50047422
Points: 685
# Comments: 1004
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Cognitive Decline or Sanity Incline?
Article URL: https://mdelcaro.substack.com/p/cognitive-decline-or-sanity-incline
Comments URL: https://news.ycombinator.com/item?id=50047257
Points: 14
# Comments: 6
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💬 @paulrobertlloyd — issue #843 : Syndicator-mastodon only works for Notes post type, others fail
Commentaire d’issue · Issue #843 Syndicator-mastodon only works for Notes post type, others fail · @paulrobertlloyd
@rmdes Can this issue now be closed?
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💬 @paulrobertlloyd — PR #960 : build: official container image with release, nightly and preview channels
Commentaire de pull request · PR #960 build: official container image with release, nightly and preview channels · @paulrobertlloyd
I think nightly isn’t needed right now; perhaps
releaseand manually generatedpreviewreleases is enough for now.Also, I forget why
lernaandhuskyare dependencies… I have vague recollections of this being needed for some reason. -
Someone ported Pixel 11’s Rambler voice-to-text to other Android phones
One of the best new features of Google’s Pixel 11 (and Googlebook) is support for Rambler voice-to-text, and it’s now been ported to other devices – if you’re willing to take the risk, that is.
more… -
Cartographers of North Korea (2019)
Article URL: https://cartographers-nk.wonyoung.so/
Comments URL: https://news.ycombinator.com/item?id=50047091
Points: 302
# Comments: 61
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Artificial Insanity
Article URL: https://richwhitehouse.com/index.php?postid=78
Comments URL: https://news.ycombinator.com/item?id=50047071
Points: 49
# Comments: 49
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So, you’d like to sell your print issues of The Onion?
Article URL: https://theonion.com/archivehunt/
Comments URL: https://news.ycombinator.com/item?id=50047055
Points: 355
# Comments: 56
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Corporations Showed Us How This Goes
Article URL: https://www.mooreds.com/wordpress/archives/3755
Comments URL: https://news.ycombinator.com/item?id=50047042
Points: 2
# Comments: 0
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📝 52bd72c — chore: publish endpoint-microsub and post-type-page v1.0.0-beta.31
Commit sur main · 52bd72c · @paulrobertlloyd
chore: publish endpoint-microsub and post-type-page v1.0.0-beta.31
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📝 fb0298d — ci: add from-package option for publish workflow
Commit sur main · fb0298d · @paulrobertlloyd
ci: add from-package option for publish workflow
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💬 @paulrobertlloyd — discussion #1007 : v1.0.0 Beta 30 – The Big Three-oh!
Reponse de discussion · Discussion #1007 v1.0.0 Beta 30 – The Big Three-oh! · @paulrobertlloyd
Beta 31 fixes a few issues introduced by this release.
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The Unreasonable Effectiveness of Vex in NixOS
Article URL: https://blog.kammel.dev/post/nixos_vex/
Comments URL: https://news.ycombinator.com/item?id=50046864
Points: 43
# Comments: 1
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🚀 Release v1.0.0 Beta 31
Release · v1.0.0 Beta 31 · @paulrobertlloyd
This release addresses a few bugs introduced in Beta 30.
💟 Indiekit is supported by its community. This release was sponsored by @abhas and @sentience.
Bug Fixes
- endpoint-auth: refuse a repeated URL parameter or a client_id with dot segments. Thanks @rmdes (409a2fd)
- endpoint-auth: refuse incomplete or plain PKCE parameters. Thanks @rmdes (eebff21)
- endpoint-share: use correctly resolved share endpoint URL (c32ce0b)
- frontend: focus the editor through CodeMirror so mobile keeps its toolbar icons. Thanks @rmdes for the fix, and @fabiomrbarbosa for reporting (4096813)
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Meta's Muse Is Building Dossiers on Your Friends and Family, Even If They Never Signed Up, Internal Files Reveal
submitted by Powderhorn to technology
88 points | 8 comments
https://www.ibtimes.co.uk/meta-muse-ai-profiles-users-social-circles-1824205Meta’s Muse may be marketed as a helpful personal assistant, but internal instructions reviewed by TIME and extracted by an independent researcher indicate that the AI agent is designed to build detailed, continuously updated profiles of users and people in their lives, including people who have never used Muse themselves.
Muse has grown rapidly since its 8 September launch, with more than 4 million people using the assistant in some way at least once a week, according to internal figures reviewed by The Information. The findings raise questions about how much an AI assistant can learn about people who never chose to use it.
TIME’s analysis found that Muse’s internal instructions call for updating these profiles roughly every hour, using information about people mentioned in chats, messages, and emails the assistant can access. The profiles can include how users met their contacts, shared interests, disagreements, and ‘tensions and alliances’ within their social circles.
WIRED separately reported that Muse’s instructions call for creating ‘a page for every person in the user’s life,’ including family, partners, friends, colleagues, collaborators, and people the user follows. As a result, people who have never used Muse could still appear in a user’s relationship profiles if information about them is available to the assistant.
Quelle surprise.
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📝 0c9f153 — v1.0.0-beta.31
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📝 c32ce0b — fix(endpoint-share): use correctly resolved share endpoint URL
Commit sur main · c32ce0b · @paulrobertlloyd
fix(endpoint-share): use correctly resolved share endpoint URL
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📝 409a2fd — fix(endpoint-auth): refuse a repeated URL parameter or a client_id wi…
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📝 eebff21 — fix(endpoint-auth): refuse incomplete or plain PKCE parameters
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📝 4096813 — fix(frontend): focus the editor through CodeMirror so mobile keeps it…
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Funniest/Most Insightful Comments Of The Week At Techdirt
This week, our first place winner on the insightful side is Thad replying to a comment about Mark Zuckerberg’s past projects: I’d say the first thing he did was bring back the AOL silo paradigm. In second place, it’s MrWilson with a comment about the fifth measles-related death in Pennsylvania: My bingo card has the […] -
Chapter 1 of "Ways of Seeing" by John Berger (1972)
Article URL: https://www.ways-of-seeing.com/ch1
Comments URL: https://news.ycombinator.com/item?id=50046241
Points: 131
# Comments: 31
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Anthropic is out with new nonsense about Claude
Article URL: https://dair-community.social/@emilymbender/117412868905734653
Comments URL: https://news.ycombinator.com/item?id=50046117
Points: 4
# Comments: 1
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Karpathy on Learning
Article URL: https://twitter.com/karpathy/status/1756380066580455557
Comments URL: https://news.ycombinator.com/item?id=50046016
Points: 19
# Comments: 8
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Total Annihilation, rebuilt for modern computers
Article URL: https://nanolathe.gg
Comments URL: https://news.ycombinator.com/item?id=50045984
Points: 586
# Comments: 222
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🟢 PR #1013 — fix(frontend): focus the editor through CodeMirror so mobile keeps its toolbar icons
Pull request (OPEN) · PR #1013 fix(frontend): focus the editor through CodeMirror so mobile keeps its toolbar icons · @rmdes
Fixes #1012
The label click now focuses the editor with
editor.codemirror.focus(), which works for both of CodeMirror’s input styles, instead of looking up.CodeMirror textarea, which does not exist on mobile and madegetElementthrow before the toolbar icons were swapped in.Adds the first test for the textarea component: it mounts the editor with a mobile user agent and checks every toolbar button gets its icon. It fails on
mainwithNo element matching .CodeMirror textarea. To load the component under Node, itsget-elementimport gains the.jsextension its other import already has. -
NYC's "Click to Cancel" rule is now in effect
Article URL: https://www.nyc.gov/main/click-to-cancel
Comments URL: https://news.ycombinator.com/item?id=50045946
Points: 412
# Comments: 197
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💬 @rmdes — issue #1012 : Editor toolbar icons missing on mobile since beta.30 (getElement throws on .CodeMirror textarea)
Commentaire d’issue · Issue #1012 Editor toolbar icons missing on mobile since beta.30 (getElement throws on .CodeMirror textarea) · @rmdes
Confirmed, also on mine, working on a fix, hold on !