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Show HN: One-click AI employee with its own cloud desktop

https://cloudbot-ai.com
2•fainir•26m ago•0 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

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250•isitcontent•17h ago•27 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

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350•vecti•19h ago•157 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

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319•eljojo•20h ago•196 comments

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78•phreda4•17h ago•14 comments

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93•antves•1d ago•70 comments

Show HN: I'm 75, building an OSS Virtual Protest Protocol for digital activism

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Show HN: I built Divvy to split restaurant bills from a photo

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Show HN: ARM64 Android Dev Kit

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Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

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152•bsgeraci•1d ago•64 comments

Show HN: Slack CLI for Agents

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Show HN: I Hacked My Family's Meal Planning with an App

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Show HN: I built a free UCP checker – see if AI agents can find your store

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Show HN: Compile-Time Vibe Coding

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Show HN: Micropolis/SimCity Clone in Emacs Lisp

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Show HN: Daily-updated database of malicious browser extensions

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Show HN: Slop News – HN front page now, but it's all slop

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15•keepamovin•8h ago•5 comments

Show HN: Horizons – OSS agent execution engine

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Show HN: Falcon's Eye (isometric NetHack) running in the browser via WebAssembly

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Show HN: Fitspire – a simple 5-minute workout app for busy people (iOS)

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Show HN: GitClaw – An AI assistant that runs in GitHub Actions

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Show HN: FastLog: 1.4 GB/s text file analyzer with AVX2 SIMD

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5•AGDNoob•13h ago•1 comments
Open in hackernews

Show HN: Ambient light sensor control of keyboard and screen brightness in Linux

https://github.com/donjajo/als-led-backlight
26•donjajo•3mo ago
I have always wanted cool features in Linux because I use it day to day as my OS. I have always wanted to implement this feature and do it properly: one that automatically adjusts keyboard and LCD backlights using data from the Ambient Light Sensor.

I enjoy low-level programming a lot. I delved into writing this program in C. It came out well and worked seamlessly on my device. Currently, it only works for keyboard lights. I designed it in a way that the support for LCD will come in seamlessly in the future.

But, in the real world, people have different kinds of devices. And I made sure to follow the iio implementation on the kernel through sysfs. I would like feedback. :)

Comments

seba_dos1•3mo ago
FWIW, iio-sensor-proxy gives you a user-accessible dbus API for ambient light sensors. GNOME has had a feature to auto-adjust screen brightness based on it for ages (though their implementation leave much to be desired and hasn't changed despite of several attempts to rework it over the years).

  $ monitor-sensor
      Waiting for iio-sensor-proxy to appear
  +++ iio-sensor-proxy appeared
  === Has accelerometer (orientation: normal)
  === Has ambient light sensor (value: 56.200000, unit: lux)
  === Has proximity sensor (near: 0)
      Light changed: 56.200000 (lux)
      Light changed: 55.100000 (lux)
      Light changed: 58.500000 (lux)
      Light changed: 48.800000 (lux)
teo_zero•3mo ago
What strategy does this apply? For the display I assume it should increases the brightness as the ambient light rises. But for keybord light it's the opposite: I'd want it off in a lit environment and on in a dark one.