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Show HN: Find matching acrylic paints for any HEX color

https://acrylicmatch.com/
43•dotspencer•5d ago•14 comments

Show HN: C++ Quantum Simulator written from scratch

https://github.com/braketware/hilbert-qusim
2•lofri•3h ago•0 comments

Show HN: I scraped 3B Goodreads reviews to train a better recommendation model

https://book.sv
578•costco•2d ago•238 comments

Show HN: Three Emojis, a daily word puzzle for language learners

https://threeemojis.com/en-US/play/hex/en-US/2025-11-07
28•knuckleheads•21h ago•24 comments

Show HN: Patternia – A compile-time pattern matching DSL for C++

https://github.com/sentomk/patternia
2•sentomk•6h ago•1 comments

Show HN: CoLit – A Collaborative Literature Platform

https://www.colit.app/
5•pujan19•7h ago•0 comments

Show HN: qqqa – A fast, stateless LLM-powered assistant for your shell

https://github.com/matisojka/qqqa
155•iagooar•2d ago•84 comments

Show HN: See chords as flags – Visual harmony of top composers on musescore

https://rawl.rocks/
123•vitaly-pavlenko•2d ago•28 comments

Show HN: Dynamic code and feedback walkthroughs with your coding Agent in VSCode

https://www.intraview.ai/hn-demo
42•cyrusradfar•2d ago•10 comments

Show HN: VoxConvo – "X but it's only voice messages"

https://voxconvo.com
10•siim•18h ago•14 comments

Show HN: Command line YouTube downloader,a universal media solution for everyone

https://github.com/Saffron-sh/m2m
14•saffron-sh•20h ago•5 comments

Show HN: TabPFN-2.5 – SOTA foundation model for tabular data

https://priorlabs.ai/technical-reports/tabpfn-2-5-model-report
71•onasta•1d ago•12 comments

Show HN: OSS implementation of Test Time Diffusion that runs on a 24gb GPU

https://github.com/eamag/MMU-RAG-competition
20•eamag•1d ago•0 comments

Show HN: A DevTools-Level JavaScript API for DOM and CSS Style Rules

https://github.com/devtoolcss/chrome-inspector
2•brouser•12h ago•2 comments

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

https://github.com/donjajo/als-led-backlight
24•donjajo•6d ago•2 comments

Show HN: Flutter_compositions: Vue-inspired reactive building blocks for Flutter

https://github.com/yoyo930021/flutter_compositions
45•yoyo930021•2d ago•23 comments

Show HN: Conversational Hindi tutor for Indian diaspora kids (5-9yrs old)

https://www.hindispeakingtutor.in/
2•shubham13596•6h ago•0 comments

Show HN: Hacker Reader – A clean, open-source Hacker News client for iOS

https://apps.apple.com/us/app/hacker-reader/id6754137305
2•danielcspaiva•15h ago•0 comments

Show HN: A CSS-Only Terrain Generator

https://terra.layoutit.com
364•rofko•4d ago•82 comments

Show HN: I built desktop app for keeping track of your PC gaming sessions

https://store.steampowered.com/app/3879010/Sentinel_Signal/
3•sentinelsignal•7h ago•2 comments

Show HN: Rankly – The only AEO platform to track AI visibility and conversions

https://tryrankly.com
2•satj•18h ago•0 comments

Show HN: Pingu Unchained an Unrestricted LLM for High-Risk AI Security Research

https://pingu.audn.ai
10•ozgurozkan•20h ago•6 comments

Show HN: Extending LLM SVG generation beyond pelicans and bicycles

https://gally.net/temp/20251107pelican-alternatives/index.html
7•tkgally•1d ago•0 comments

Show HN: I made a better DOM morphing algorithm

https://joel.drapper.me/p/morphlex/
8•joeldrapper•1d ago•0 comments

Show HN: I built a Free "Masterclass" from YouTube clips

https://opencademy.com/
5•longerpath•21h ago•7 comments

Show HN: Strange Attractors

https://blog.shashanktomar.com/posts/strange-attractors
800•shashanktomar•1w ago•78 comments

Show HN: Linguistic RL – A 7B model discovers Occam's Razor through reflection

https://github.com/DRawson5570/linguistic-rl-scheduling
2•drawson5570•1d ago•0 comments

Show HN: Lanturn – A smart headlamp running voice+vision on ESP32

https://github.com/getchannel/lanturn
3•Aeroi•1d ago•1 comments

Show HN: XML-Lib – An over-engineered XML workflow with guardrails and proofs

https://github.com/farukalpay/xml-lib
3•HenryAI•1d ago•0 comments

Show HN: A Lightweight Kafka Alternative

5•kellyviro•1d ago•0 comments
Open in hackernews

Show HN: I built desktop app for keeping track of your PC gaming sessions

https://store.steampowered.com/app/3879010/Sentinel_Signal/
3•sentinelsignal•7h ago
Hi everyone! I've been working hard to deliver my application to Steam and now it is released!

Its purpose is to help you better manage your gaming sessions. It can automatically detect when you run your games, track the gaming time, let you set weekly gaming goals, a gaming session limit and send you visual and audio notification when you are close to your gaming limit. You can also flexibly extend your gaming session up to a degree while you are in game to ensure that you can finish up your current session as you needed.

Currently it only works for Steam games. I would be happy to hear your questions, comments and feedback.

Comments

Klaster_1•6h ago
Being limited to a single platform, and then to a single store is a huge drawback. Some games, like Alan Wake 2, are Epic exclusives. Do you plan to address that?

Personally, I solved the issue by decoupling the whole idea and just manually tracking time. As a bonus, you could track other activities like work. Link in the profile.

sentinelsignal•5h ago
That is a very good point. Thank you very much for your comment. Yes, I am aware of this drawback, I have plans to address this point at later stages but for the initial phase I wanted Sentinel Signal to be really focused on solving core problem very well for Steam gamers and work right out of the box with no need to do manual tracking.

At some point I will probably expand game detection to other platforms but I will ensure that it will have extremely high accuracy before doing so.