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

https://github.com/sandys/kappal
6•sandGorgon•2d ago•2 comments

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

https://github.com/valdanylchuk/breezydemo
247•isitcontent•17h ago•27 comments

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

https://vecti.com
349•vecti•19h ago•157 comments

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

https://eljojo.github.io/rememory/
315•eljojo•20h ago•194 comments

Show HN: MCP App to play backgammon with your LLM

https://github.com/sam-mfb/backgammon-mcp
2•sam256•1h ago•1 comments

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

https://github.com/phreda4/r3
77•phreda4•16h ago•14 comments

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

https://docs.smooth.sh/cli/overview
93•antves•1d ago•70 comments

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

https://github.com/voice-of-japan/Virtual-Protest-Protocol/blob/main/README.md
5•sakanakana00•2h ago•1 comments

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

https://divvyai.app/
3•pieterdy•2h ago•0 comments

Show HN: ARM64 Android Dev Kit

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

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

https://www.biotradingarena.com/hn
26•dchu17•21h ago•12 comments

Show HN: Slack CLI for Agents

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

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

https://github.com/artifact-keeper
152•bsgeraci•1d ago•64 comments

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

https://mealjar.app
2•melvinzammit•4h ago•0 comments

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

https://ucphub.ai/ucp-store-check/
2•vladeta•5h ago•2 comments

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

https://github.com/rivet-dev/sandbox-agent/tree/main/gigacode
19•NathanFlurry•1d ago•9 comments

Show HN: Compile-Time Vibe Coding

https://github.com/Michael-JB/vibecode
10•michaelchicory•6h ago•1 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
15•keepamovin•7h ago•5 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•22h ago•7 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

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

Show HN: Horizons – OSS agent execution engine

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

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

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
5•rahuljaguste•16h ago•1 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•10h ago•0 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: I built a RAG engine to search Singaporean laws

https://github.com/adityaprasad-sudo/Explore-Singapore
4•ambitious_potat•11h ago•4 comments

Show HN: Sem – Semantic diffs and patches for Git

https://ataraxy-labs.github.io/sem/
2•rs545837•11h ago•1 comments

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

https://bastion-enclave.vercel.app
12•KevinChasse•22h ago•16 comments

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

https://github.com/SawyerHood/gitclaw
10•sawyerjhood•23h ago•0 comments

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

https://github.com/AGDNoob/FastLog
5•AGDNoob•13h 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: Replacing $5K industrial signal towers with a webapp [video]

https://www.youtube.com/shorts/t-ROd1hx20I
2•edmundsparrow•1mo ago
I built SignalTower, a web app that recreates $5K industrial signal tower functionality using just a browser.

Demo: https://signaltower.netlify.app

The demo uses your phone's flashlight to prove the concept, but the same Web Serial/WebUSB APIs can control real PLCs and signal towers.

Traditional setup: ~$15K (HMI panel + signal tower + licenses) This setup: $15 Raspberry Pi

You can test it standalone or install it in GnokeStation by typing "install [signaltower-url]" in the terminal.

Current state: Working proof of concept. Looking for feedback on the industrial control approach and potential production use cases.

Comments

edmundsparrow•1mo ago
Author here. Quick demo walkthrough:

The video shows SignalTower running inside GnokeStation, then demonstrates the app installation system - I install Photopea (a web-based Photoshop alternative) via terminal, then uninstall both apps.

This proves GnokeStation can run any web app as a native-feeling application just by typing "install [url]" in the terminal. No app store, no complex packaging - just URLs.

For the industrial use case: imagine a factory floor where workers can instantly deploy new control interfaces by pasting a URL. No IT approval, no vendor negotiations, no waiting.

Happy to answer technical questions about signaltower or gnokestation.

Congratulations we're in 2026