Hacker News
Would you wear an air-quality sensor on your body?
Article URL: https://www.cbc.ca/news/climate/what-on-earth-bill-air-quality-art-9.7356388
Comments URL: https://news.ycombinator.com/item?id=49844003
Points: 1
# Comments: 0
Doubts grow over claims OpenAI agent hacked Australian Medicare portal
Article URL: https://therecord.media/openai-australia-breach-cyber
Comments URL: https://news.ycombinator.com/item?id=49843979
Points: 1
# Comments: 0
Financing the AI Buildout
Article URL: https://www.brookings.edu/articles/financing-the-ai-buildout/
Comments URL: https://news.ycombinator.com/item?id=49843952
Points: 2
# Comments: 0
Show HN: Worktable, an open-source workspace for you and your agents
Hello HN!
I built Worktable as an open-source, file-based workspace for you and your agents to create docs, plans, and build small tools.
For example, you ask an agent to compare hosting options for your next side project, save the research notes, and build a calculator where you can adjust traffic and storage assumptions yourself.
As a backstory, I run my Claude Code, Codex, and OpenClaw on a server at home and was consistently frustrated with the experience of trying to review/edit docs, share context between them, switch to other new agents, and more.
In the last few months, it has become what all my daily work depends on, so I decided to make a product and release it for others to use.
What’s included:
• Markdown, richtext, HTML, structured records as YAML • A built-in runtime and data API for HTML dashboards, calculators, planners, etc • Comments and version history • MCP connections to local, self-hosted or Worktable Cloud • Threads for you and your agents + a dedicated OpenClaw plugin for automatic replies (Hermes coming soon) • Plain files in regular folders. Same workspace format and export/import across local, self-hosted and cloud.
Free local/self-hosted, AGPL. Cloud is optional.
Try it with your agents. I’d love to learn what you do with it and what gets in the way.
https://worktable.dev https://github.com/worktable/worktable-dev
Comments URL: https://news.ycombinator.com/item?id=49843943
Points: 1
# Comments: 0
Double Split Experiment
Article URL: https://claude.ai/artifact/RLbDxsWYwyvgxzejRHTGgj
Comments URL: https://news.ycombinator.com/item?id=49843929
Points: 1
# Comments: 0
Satin: Dark mode PDF reader via affine mapping on Oklab lightness dimension
Article URL: https://github.com/samestep/satin
Comments URL: https://news.ycombinator.com/item?id=49843911
Points: 1
# Comments: 0
Show HN: Hamilton – a no-internet Android health dashboard, named after my dog
I started experimenting with LLMs and decided I wanted to create a fitness app. My first thought was an app that disabled Google Pay every time my phone detected I was within 50m of a McDonald's.
However, I quickly pivoted like a true founder to create an app that addressed a personal issue of mine.
On Android, if you have a bunch of apps and fitness monitors from different manufacturers, very few of them all talk to each other. Your data is scattered across different apps or double counted. However, most data sources write to Health Connect.
Hamilton is a dashboard of your Health Connect data with a homepage that shows your key metrics at a glance. Your choice of data source is flexible to avoid double counting, and you can overlay and offset metrics on charts to view correlations and track progress over time.
I named the app after my dog, who occasionally fetches things and is responsible for my daily step count.
Below is an FAQ, and to avoid confusion I have helpfully labelled my responses [APP] or [DOG].
FAQ
1. Is Hamilton any good?
[APP] I think so - I use it daily.
[DOG] He is the absolute BEST BOY EVER
2. How much does Hamilton cost?
[APP] £3.59 (or local equivalent). I priced it to be approximately the same as a latte, which is my standard unit of measurement for impulse purchases.
[DOG] DO NOT REMIND ME. He was a lockdown puppy and I bought him at the top of the market (He's still worth every penny though)
3. Is Hamilton vibe-coded?
[APP] 100% yes, but human-designed to fit my needs.
[DOG] He wants to create an app called Rate my Vet, with ratings dependent on how they take his temperature.
4. Is that unsafe? Will Hamilton delete data on my phone?
[APP] Everything is a read-only view on Health Connect, and the app has no internet permission. It can't delete your Health Connect data and it can't transmit data.
[DOG] No, but my cat jumped on my keyboard when I was in the middle of typing an insightful LinkedIn post and made me send RUBBISH to my THOUSANDS (20) of followers
5. Is Hamilton active in the background?
[APP] It fetches your data hourly from Health Connect if granted background access, and it works with Android battery saving rules.
[DOG] He's active in the background of my Zoom calls, mostly licking his genitals
6. Is Hamilton tested?
[APP] I've been using it daily and testing and refining it for months. I realise just typing this sentence means someone will find a critical bug the first time they run it and I will look like a FOOL.
[DOG] Only for tapeworm and parvo virus.
7. Do you eat your own dog food?
[APP] I use it every day to show my steps, body comp, workout sessions etc
[DOG] He does, but he would far rather eat whatever it is I have on my plate.
8. Does Hamilton show all your data?
[APP] 30+ metrics, everything except blood sugar and reproductive health
[DOG] The only data he gets is from sniffing lamp posts
9. What units does Hamilton use?
[APP] Metric, Imperial, and you can also configure per metric group to match the strange mix we have in the UK. No furlongs though.
[DOG] Approximately 6 urinations per 20m walked
10. Does Hamilton have any recurring costs?
[APP] I hate apps with subscriptions, and no internet permission means no backend costs so the app is paid once
[DOG] Vets are crooks, is all I will say on this.
11. Has Hamilton won any prizes?
[APP] Not yet
[DOG] Second in the Waggiest Tail Category at the Weald of Kent Ploughing Match. He was ROBBED.
12. Are the metrics on the Play Store yours?
[APP] Absolutely not. I have 5% body fat, do 20,000 steps a day and have a resting heart rate of 12.
[DOG] Yes
13. Where can I see Hamilton?
[APP] https://play.google.com/store/apps/details?id=com.gads.hamil...
[DOG] https://hamiltonapp.github.io/HamiltonApp/dog.html
Comments URL: https://news.ycombinator.com/item?id=49843909
Points: 4
# Comments: 1
Show HN: JevPertus – Jev-style option scoring on Apertus
Article URL: https://github.com/Jaluus/JevPertus
Comments URL: https://news.ycombinator.com/item?id=49843906
Points: 2
# Comments: 0
Nobody Asked for a Crab Chair
Article URL: https://newmobility.com/nobody-asked-for-a-crab-chair/
Comments URL: https://news.ycombinator.com/item?id=49843899
Points: 2
# Comments: 0
System Design Unboxed: new digital book
Article URL: https://books.lextrem.com/system-design-1/
Comments URL: https://news.ycombinator.com/item?id=49843897
Points: 1
# Comments: 0
Show HN: FAA sectional Time Machine, 1930 to today
archive.aero is a free viewer for historical FAA sectional charts. Drag the timeline to see the charts in effect on that date. It's about 7,600 chart sheets stitched into one mosaic per edition. The scans come from the National Archives, the FAA, and charts contributed by the public. It's built on GDAL and PMTiles, so there is no tile server or backend. The browser reads tiles straight from Cloudflare R2 with range requests.
I'm a student pilot in North Texas and I always wanted a "ForeFlight time machine" to see what changed between editions. The gaps are at https://archive.aero/contribute (mostly 1970 to 2005) if you have old charts and would like to send them to be scanned.
Comments URL: https://news.ycombinator.com/item?id=49843885
Points: 1
# Comments: 0
Solved cold case may have a connection to the infamous 1982 'Tylenol murders'
Article URL: https://www.spokesman.com/stories/2026/sep/23/idaho-officials-solved-a-1982-cold-case-that-may-h/
Comments URL: https://news.ycombinator.com/item?id=49843839
Points: 2
# Comments: 0
Ormaos: What happened inside your Python execution?
Article URL: https://ormaos.com/
Comments URL: https://news.ycombinator.com/item?id=49843825
Points: 1
# Comments: 0
ChatGPT composed a BEAUTIFUL, original piano solo with code. Is this AGI?
Article URL: https://twitter.com/AdamHincu/status/2103462960463311100
Comments URL: https://news.ycombinator.com/item?id=49843819
Points: 1
# Comments: 0
Agent communication should be designed as Byzantine
Article URL: https://www.noetive.io/blog/byzantine-agents
Comments URL: https://news.ycombinator.com/item?id=49843814
Points: 1
# Comments: 1
Ali Alkhatib: Weeds tend not to grow where they can't take root
Article URL: https://ali-alkhatib.com/blog/weeding-out-ai
Comments URL: https://news.ycombinator.com/item?id=49843811
Points: 1
# Comments: 0
Famous actors arriving in the vertical drama no longer just bring romance
Article URL: https://www.duanju.news/en/post/famous-actors-duanju-romance
Comments URL: https://news.ycombinator.com/item?id=49843361
Points: 1
# Comments: 0
The Cryptopals Crypto Challenges
Article URL: https://cryptopals.com/
Comments URL: https://news.ycombinator.com/item?id=49843334
Points: 1
# Comments: 0
Clankers Made Me Build a Second Brain
Article URL: https://jadarma.github.io/blog/posts/2026/09/clankers-made-me-build-a-second-brain/
Comments URL: https://news.ycombinator.com/item?id=49843333
Points: 1
# Comments: 0
