Hacker News

Article URL: https://www.theguardian.com/world/2026/feb/18/china-dancing-humanoid-robots-festival-show

Comments URL: https://news.ycombinator.com/item?id=47058659

Points: 1

# Comments: 0

Article URL: https://www.ft.com/content/dffe72d0-4064-4412-8ebc-50198a30d40e

Comments URL: https://news.ycombinator.com/item?id=47058654

Points: 1

# Comments: 0

Article URL: https://docs.limpioterminal.pro

Comments URL: https://news.ycombinator.com/item?id=47058649

Points: 1

# Comments: 0

Article URL: https://github.com/rajshah6/arXivisual

Comments URL: https://news.ycombinator.com/item?id=47058615

Points: 1

# Comments: 0

Hi HN,

I built SentryRF because I was frustrated by the lack of granular control on Android for identifying unwanted tracking devices. While Google's native "Unknown Tracker Alerts" are a good start, they often feel like a black box with limited diagnostic tools.

The Tech:

Signal Analysis: Instead of just listing every BLE device, SentryRF uses signal strength (RSSI) and temporal patterns to distinguish between a "passing" device (someone walking by with an AirTag) and a "following" device (a tracker on your vehicle).

Hardware Sensors: I’ve integrated the magnetometer and ambient light sensors to help find non-broadcasting devices (like "dead" GPS units or wired pinhole cameras) by detecting magnetic anomalies and infrared emissions.

Sound Locator: I implemented an audio-guided proximity algorithm that increases beep frequency as you approach the source. It’s essentially a Geiger counter for Bluetooth signals.

Privacy (The most important part):

Zero Cloud: There is no backend. No scan data, location data, or telemetry ever leaves the device.

No Accounts: You don’t need to sign up. I don't want your email or your name.

Permissions: It requires Location/Bluetooth (obviously), but I’ve documented exactly why each is needed in the app’s onboarding.

Why I’m showing it here: I’m looking for technical feedback on the signal smoothing I’m using for the proximity tracker and any edge cases I might have missed regarding the rogue cell tower (IMSI catcher) detection.

The app has a 7-day free trial so you can test the "Pro" features (like the Sound Locator) without paying a cent.

I'll be around all day to answer questions about the stack or the detection logic!

Comments URL: https://news.ycombinator.com/item?id=47058600

Points: 1

# Comments: 0

Article URL: https://www.theguardian.com/artanddesign/2026/feb/17/shigeru-ban-architect-cathedrals-quake-shelters-beer-crates-paper

Comments URL: https://news.ycombinator.com/item?id=47058598

Points: 1

# Comments: 0

Article URL: https://developer.apple.com/forums/thread/815713

Comments URL: https://news.ycombinator.com/item?id=47058591

Points: 2

# Comments: 1

Article URL: https://theconversation.com/air-pollution-may-directly-contribute-to-alzheimers-disease-new-study-275873

Comments URL: https://news.ycombinator.com/item?id=47058588

Points: 1

# Comments: 1

Article URL: https://tigerbeetle.com/blog/2026-02-16-index-count-offset-size/

Comments URL: https://news.ycombinator.com/item?id=47058584

Points: 1

# Comments: 0

Article URL: https://www.wsj.com/tech/ai/this-viral-ai-project-went-from-side-hustle-to-coveted-prize-in-three-months-8daae057

Comments URL: https://news.ycombinator.com/item?id=47058570

Points: 1

# Comments: 0

Article URL: https://aeon.co/videos/chinese-new-year-is-a-stunning-spectacle-of-human-migration-in-3-billion-journeys

Comments URL: https://news.ycombinator.com/item?id=47058539

Points: 1

# Comments: 0

Article URL: https://www.bbc.com/news/articles/c5yv9plyjgpo

Comments URL: https://news.ycombinator.com/item?id=47058537

Points: 1

# Comments: 0

I bought a Tesla Model X in 2023 and kept staring at the 17-inch display sitting idle while I worked on my 14-inch MacBook. I often drive to a quiet spot and work from the car, so I wanted to use that screen as a second monitor.

Nothing existed to do this, so I tried building it myself. It took over a year of failed attempts:

- Hardware mod: didn't want to void the warranty - Zoom screen share: worked but terrible latency, no fullscreen - HLS streaming via OBS: ~2 second delay, unusable as a monitor - WebRTC: Tesla's browser didn't support it at the time

A few Tesla software updates later, I tried WebRTC again and it worked. But I still needed a pile of hardware: an LTE router, an OpenWrt router, and a dummy HDMI adapter. The setup was ridiculous.

Then I realized every piece of hardware had a software replacement:

LTE router -> iPhone USB tethering OpenWrt router -> macOS Internet Sharing (bridge100 + bootpd + NAT) Dummy HDMI -> Apple's CGVirtualDisplay API Total extra hardware cost: $0. Just a MacBook and an iPhone.

One interesting discovery along the way: Tesla's browser blocks all RFC 1918 private IP ranges (10.x.x.x, 172.16.x.x, 192.168.x.x). My guess is it's a security measure to protect the car's internal network. The workaround was configuring the bridge interface to assign public IP addresses instead.

I packaged everything into a macOS app called SideDisplay. Free trial, 30 min per session, no sign up. If you have a Tesla and a Mac, try it and tell me what's broken.

I also wrote a detailed development story covering every failed attempt and the technical decisions behind them. It would mean a lot if you checked it out: https://sidedisplay.co/story

Comments URL: https://news.ycombinator.com/item?id=47058527

Points: 1

# Comments: 0

Article URL: https://old.reddit.com/r/ClaudeAI/comments/1r7lphz/difference_between_sonnet_45_and_sonnet_46_on_a/

Comments URL: https://news.ycombinator.com/item?id=47058497

Points: 1

# Comments: 2

Article URL: https://webaitool.net/invoicegenerator.html

Comments URL: https://news.ycombinator.com/item?id=47058335

Points: 1

# Comments: 0

Article URL: https://arxiv.org/abs/2602.10117

Comments URL: https://news.ycombinator.com/item?id=47058314

Points: 1

# Comments: 0

Article URL: https://fi-le.net/spell/

Comments URL: https://news.ycombinator.com/item?id=47058308

Points: 1

# Comments: 0

Article URL: https://old.reddit.com/r/BuyFromEU/comments/1r7msjb/our_chief_of_operations_spent_6_months_switching/

Comments URL: https://news.ycombinator.com/item?id=47058301

Points: 1

# Comments: 0

Article URL: https://www.waveshare.com/wiki/RP2350-Plus?srsltid=AfmBOoqoKjRj9ufbpz49iZZ2oBIGlTuUI8Ra0l6IBeAhXLrhSdvA13MH

Comments URL: https://news.ycombinator.com/item?id=47058294

Points: 1

# Comments: 0

Article URL: https://blog.fogus.me/meta/LLMe.html

Comments URL: https://news.ycombinator.com/item?id=47058284

Points: 1

# Comments: 0