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Show HN: Browser based state machine simulator and visualizer

https://svylabs.github.io/smac-viz/
3•sridhar87•4d ago•0 comments

Show HN: A luma dependent chroma compression algorithm (image compression)

https://www.bitsnbites.eu/a-spatial-domain-variable-block-size-luma-dependent-chroma-compression-...
23•mbitsnbites•3d ago•1 comments

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

https://github.com/Momciloo/fun-with-clip-path
40•momciloo•5h ago•5 comments

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

https://github.com/sandys/kappal
41•sandGorgon•2d ago•17 comments

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

https://github.com/valdanylchuk/breezydemo
293•isitcontent•1d ago•39 comments

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

https://eljojo.github.io/rememory/
361•eljojo•1d ago•217 comments

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

https://vecti.com
374•vecti•1d ago•171 comments

Show HN: PalettePoint – AI color palette generator from text or images

https://palettepoint.com
2•latentio•2h ago•0 comments

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

https://docs.smooth.sh/cli/overview
97•antves•2d ago•70 comments

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

https://github.com/phreda4/r3
85•phreda4•1d ago•17 comments

Show HN: I built a <400ms latency voice agent that runs on a 4gb vram GTX 1650"

https://github.com/pheonix-delta/axiom-voice-agent
2•shubham-coder•4h ago•1 comments

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

https://github.com/artifact-keeper
155•bsgeraci•1d ago•65 comments

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

https://www.biotradingarena.com/hn
29•dchu17•1d ago•12 comments

Show HN: Stacky – certain block game clone

https://www.susmel.com/stacky/
3•Keyframe•5h ago•0 comments

Show HN: Slack CLI for Agents

https://github.com/stablyai/agent-slack
55•nwparker•2d ago•12 comments

Show HN: A toy compiler I built in high school (runs in browser)

https://vire-lang.web.app
3•xeouz•6h ago•1 comments

Show HN: ARM64 Android Dev Kit

https://github.com/denuoweb/ARM64-ADK
18•denuoweb•2d 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
23•NathanFlurry•1d ago•10 comments

Show HN: Nginx-defender – realtime abuse blocking for Nginx

https://github.com/Anipaleja/nginx-defender
3•anipaleja•8h ago•0 comments

Show HN: Micropolis/SimCity Clone in Emacs Lisp

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

Show HN: MCP App to play backgammon with your LLM

https://github.com/sam-mfb/backgammon-mcp
3•sam256•10h ago•1 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
9•sakanakana00•11h ago•2 comments

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

https://divvyai.app/
3•pieterdy•11h ago•1 comments

Show HN: Horizons – OSS agent execution engine

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

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
14•toborrm9•1d ago•8 comments

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

https://rahuljaguste.github.io/Nethack_Falcons_Eye/
7•rahuljaguste•1d 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
22•keepamovin•16h ago•6 comments

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

https://mealjar.app
2•melvinzammit•13h ago•0 comments

Show HN: Local task classifier and dispatcher on RTX 3080

https://github.com/resilientworkflowsentinel/resilient-workflow-sentinel
25•Shubham_Amb•2d ago•2 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•13h ago•2 comments
Open in hackernews

Show HN: RingtoneSmartKit – Kotlin Library for Android Ringtones

https://github.com/AmjdAlhashede/RingtoneSmartKit
3•AmjdAlhashede•7mo ago
I built RingtoneSmartKit – an open-source Kotlin library for managing Android ringtones in a simple and reliable way.

It supports: - Setting system ringtones: alarm, notification, and incoming call - Assigning custom ringtones to contacts - Working directly with audio from assets or content URIs - No need for Context or Activity — making integration easier anywhere in your app

The goal is to provide a clean, reusable solution for ringtone handling without relying on messy platform code.

Feedback, testing, and suggestions are very welcome!

Comments

atmanactive•7mo ago
What I find myself doing over and over again is customizing Android notification tones for various apps. I really find it beneficial when I can tell from the sound from my pocket which app would like to notify me at that point in time. I really wish there was an app that could manage all that, including exporting/importing everything configured, so I could reuse that and not be forced to rebuild it from scratch on each and every new Android.

Can this library change notification sounds for individual apps and their channels?

AmjdAlhashede•7mo ago
Thanks for your thoughtful comment!

To clarify: this library is focused on managing *system ringtones* only — like the default notification tone, alarm tone, call ringtone, and assigning tones to contacts.

Unfortunately, changing the notification sounds of *individual apps or their notification channels* is not possible from outside those apps. Android does not allow third-party apps or libraries to modify another app’s notification settings, due to strict sandboxing and security restrictions.

Your idea is great — I agree it would be really helpful to have a solution that backs up and restores those customizations across devices. But that would require deep system access or cooperation from each individual app, which is out of scope for this library.

Still, your feedback is appreciated! It might inspire companion tools in the future

atmanactive•7mo ago
We'll just have to wait for Android to expose that in an API, it seems.

By the way, the apps themselves are not controlling this, except maybe for eBay and Monzo (the only two out of 100 apps on my phone). Most of the time I have to go to settings->apps->notifications and customize the sound. Also, for all chat apps I like to have silent notifications configured. Except for Element, which I use for my family exclusively, and that one needs to have a loud and prominent sound.

So, eBay and Monzo are leading the way, but majority of apps are still not there and leave up to user/settings/android to control their sound and just default to whatever is the main notification sound on the device.