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

https://github.com/valdanylchuk/breezydemo
224•isitcontent•13h ago•25 comments

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

https://vecti.com
326•vecti•15h ago•143 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
282•eljojo•16h ago•167 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
71•phreda4•13h ago•14 comments

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

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2•vladeta•1h ago•1 comments

Show HN: Smooth CLI – Token-efficient browser for AI agents

https://docs.smooth.sh/cli/overview
90•antves•1d ago•66 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
16•denuoweb•1d ago•2 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
47•nwparker•1d ago•11 comments

Show HN: Compile-Time Vibe Coding

https://github.com/Michael-JB/vibecode
10•michaelchicory•3h ago•1 comments

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

https://github.com/artifact-keeper
150•bsgeraci•1d ago•63 comments

Show HN: Gigacode – Use OpenCode's UI with Claude Code/Codex/Amp

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
17•NathanFlurry•21h ago•7 comments

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

https://dosaygo-studio.github.io/hn-front-page-2035/slop-news
10•keepamovin•4h ago•2 comments

Show HN: Horizons – OSS agent execution engine

https://github.com/synth-laboratories/Horizons
23•JoshPurtell•1d ago•5 comments

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

https://apps.apple.com/us/app/fitspire-5-minute-workout/id6758784938
2•devavinoth12•6h ago•0 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•18h ago•7 comments

Show HN: I built a RAG engine to search Singaporean laws

https://github.com/adityaprasad-sudo/Explore-Singapore
4•ambitious_potat•7h ago•4 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

https://github.com/vkazanov/elcity
172•vkazanov•2d ago•49 comments

Show HN: Sem – Semantic diffs and patches for Git

https://ataraxy-labs.github.io/sem/
2•rs545837•8h ago•1 comments

Show HN: BioTradingArena – Benchmark for LLMs to predict biotech stock movements

https://www.biotradingarena.com/hn
25•dchu17•18h ago•12 comments

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

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
4•rahuljaguste•13h ago•1 comments

Show HN: Local task classifier and dispatcher on RTX 3080

https://github.com/resilientworkflowsentinel/resilient-workflow-sentinel
25•Shubham_Amb•1d ago•2 comments

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

https://github.com/AGDNoob/FastLog
5•AGDNoob•9h ago•1 comments

Show HN: Gohpts tproxy with arp spoofing and sniffing got a new update

https://github.com/shadowy-pycoder/go-http-proxy-to-socks
2•shadowy-pycoder•10h ago•0 comments

Show HN: A password system with no database, no sync, and nothing to breach

https://bastion-enclave.vercel.app
11•KevinChasse•18h ago•16 comments

Show HN: I built a directory of $1M+ in free credits for startups

https://startupperks.directory
4•osmansiddique•10h ago•0 comments

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

https://github.com/SawyerHood/gitclaw
9•sawyerjhood•19h ago•0 comments

Show HN: A Kubernetes Operator to Validate Jupyter Notebooks in MLOps

https://github.com/tosin2013/jupyter-notebook-validator-operator
2•takinosh•11h ago•0 comments

Show HN: 33rpm – A vinyl screensaver for macOS that syncs to your music

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3•kaniksu•12h ago•0 comments

Show HN: Chiptune Tracker

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3•iamdan•12h ago•1 comments

Show HN: Craftplan – I built my wife a production management tool for her bakery

https://github.com/puemos/craftplan
568•deofoo•5d ago•166 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.