📦 xiaoyang111222/cn-math-taxonomy

C-N Math Taxonomy: The Smart Math Map

C-N Math Taxonomy is the knowledge graph that turns Chinese middle school math into a living, interactive map. Most study guides are just static lists of topics, but this project connects every single concept with its prerequisites, showing you exactly what you need to know before moving on. The real magic is its adaptive diagnosis tool, which acts like a smart tutor. It asks you a few specific questions to pinpoint exactly where your understanding is shaky, then traces it back to the root cause. If you get a problem wrong, it doesn't just mark you down; it figures out which earlier concept you actually missed.

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📦 agenticsworks/agentpeerchat

AgentPeerChat: The $0 Chat App for Your AI Agents

AgentPeerChat is the self-hosted messaging service that finally lets your personal AI agents talk to each other for free. It solves the problem of agents being stuck in silos by giving them a shared inbox and direct chat lines, so your Grok Bot can actually coordinate with your local coding assistant without renting a single server. It deploys entirely inside your own Cloudflare account, meaning the database and access controls stay private on your dime. You install one simple skill, your agents pair up, and they start exchanging notes, links, and files right away.

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📦 morgankryze/cairn

Cairn: The No-Login Directory for Your Self-Hosted Services

Give the people you host tools for a simple, readable page that actually tells them what is running, what each service does, and whether it is up right now. Cairn is a tiny, single-binary web app that builds that directory page from a plain YAML file. No logins, no databases, no JavaScript required, and no heavy dashboard for your visitors to learn. The one genuinely surprising thing it does is plug directly into the uptime monitor you already run, like Gatus or Uptime Kuma, and turn those results into little live status pills on each service card.

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📦 tocconsulting/awsmap

Map your entire AWS cloud with AWMAP

Map your entire AWS cloud in minutes using AWMAP. This tool scans over one hundred and fifty services across every region to build a complete inventory of your infrastructure. It automatically saves each scan to a local database, so you can query your resources offline using simple SQL or even plain English questions. You can check for security gaps, find unused resources wasting money, and compare past snapshots to see exactly what changed over time. Instead of guessing what is running in your account, you get a clear, searchable picture of your entire cloud environment. This makes it easy to spot risks and optimize your setup without manual checking.

📰 https://news.ycombinator.com/item?id=48521901

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📦 nicorobinreal/llmspeed

Feel LLM Speed Before Buying Hardware

llmspeed is the web tool that lets you feel how fast a local AI runs before you spend a dime on hardware. Instead of guessing or reading dry spec sheets, you pick your graphics card or Mac chip and a model, then watch text stream across the screen at the exact predicted speed. It even shows the awkward pause before the first word appears. The coolest part is the race mode, where you can pit two machines against each other to see who spits out answers faster.

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📦 mcer12/pixelfonts

Pixel Fonts for Tiny Screens

Pixel fonts is the font family that gives tiny screens a retro arcade look. It solves the problem of text looking blurry or awkward on low resolution displays by providing hand crafted bitmaps that fit perfectly into small pixel grids. You can use these fonts to create chunky, blocky characters that scale up nicely, making your project look like a classic game console instead of a modern app. The single most interesting feature is the three dimensional effect, which adds a shadow and outline to the letters, giving them depth without needing extra memory.

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📦 bobsupra/nuviotvos

Nuvio: Free Dolby Vision for Apple TV

A free, open-source media player is giving Apple TV users full access to premium audio and video formats that competitors lock behind expensive subscriptions. Nuvio is a native app for your living room screen that connects directly to your own media files, whether they are stored on a cloud server or a local network. Its standout feature is built-in support for Dolby Vision and Atmos, delivering high-end cinematic quality without any paid add-ons. You also get precise remote controls and automatic subtitle handling, making it a complete viewing experience. If you want top-tier video quality on your TV without paying a monthly fee, this is the tool to watch.

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📦 reshaprio/reshapr

reShapr: The No-Code Bridge for AI APIs

Turn any standard API into a tool your AI agent can actually use. reShapr solves the headache of context overload by filtering out the bloat from massive JSON responses before they hit the model. It takes a regular API and reshapes it into something lean and readable, so your AI gets exactly what it needs without wasting tokens on junk data. Think of it as a translator that makes sure the AI isn't drowning in unnecessary text. It’s a clever way to make your AI agents smarter and faster without rewriting your whole backend.

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📦 lucas0623z/notelite

NoteLite: Turn Sheet Music into MIDI

NoteLite turns flat images of sheet music into playable digital files. You can feed it a scan or PDF, and it builds a full music score you can edit and export. The coolest part is the built-in practice studio. It lets you play along using MIDI or your own microphone, giving you real-time feedback on your timing and pitch. This saves you hours of manual data entry. It is a complete open-source toolkit for musicians who want to digitize their library. If you play an instrument, this is a clever way to start practicing with tech.

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📦 gilnett/learned_index_lab

Learned Index Lab

A single straight line can find a specific data point among a million keys with zero mistakes, and that is exactly what Learned Index Lab does. This project swaps the traditional tree structures used in databases for simple math. Instead of chasing pointers across memory, it draws a line across your data to estimate where things are, guaranteeing the answer is within a tiny, strict window. This pure Rust library builds that index in one fast pass and uses barely any memory compared to the old way.

📰 https://news.ycombinator.com/item?id=50121552

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📦 rooootdev/lara

Lara: The Jailbreak Toolbox

Take back total control of your iPhone without a traditional jailbreak. Lara is a custom toolbox that rides on a new kernel exploit to give you deep system access on recent iOS versions. Instead of just tweaking the surface, it lets you swap system fonts, edit hidden system settings, and browse files across your entire disk directly from your phone. It is basically a Swiss Army knife for power users who want to tinker with their device's core behavior. The coolest part is the full file manager, which lets you see and modify parts of the system most users never even know exist.

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📦 artcraft-android/pdfcraft-android

PdfCraft for Android: The Open Source PDF App

Edit your documents directly on your phone with a powerful, open source tool called PdfCraft for Android. Unlike typical mobile apps that just display files, this project rebuilds the entire document engine in Rust, allowing you to change text, fix layouts, and manage complex forms right on your device. It handles everything from reading long reports to signing contracts, all while keeping your data private and local. The result is a fast, responsive app that feels like a desktop program in your pocket. If you want full control over your PDFs without relying on cloud services, this is a project worth watching closely.

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📦 quanru/doubao-say

Doubao Say: Voice Input for Linux

Doubao Say turns spoken words into precise text on Linux desktops by speaking through the browser rather than installing a separate engine. It captures your voice, sends it to the service, and pastes the result directly into any window you are using. The standout feature is optional voice polishing, which uses a lightweight model to clean up filler words and fix accent-related errors within five seconds. This makes dictation feel more like typing than a raw transcription tool. If you work on Linux and want hands-free input that respects your existing workflow, this is a practical way to test AI-assisted dictation without complex setup.

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📦 voygr-tech/placecall

PlaceCall: The API for Phone Calls

PlaceCall is the phone calling service that turns your coding agents into a very persistent telemarketer. Instead of scraping websites or guessing at availability, it actually dials a real business, fights through the automated hold music and menu trees, and talks to a human. It handles the awkwardness of booking a table or checking inventory, then hands you a verified result and a full recording of the conversation. It is the missing piece for any agent that needs to do things in the physical world, not just the digital one.

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📦 ltsharpe/oblivionremasteredperformancefix

Oblivion Remastered Performance Fix: Massive FPS Boost

The Oblivion Remastered Performance Fix is the engine-level patch that finally stops your game from stuttering in busy towns. It is a free, open source tool that runs right inside the game to make it run faster without changing how it looks. The most surprising part is how it handles loading. Normally, the game freezes for seconds when you step through a door because it builds all the new physics and graphics at once on a single thread. This fix spreads that work across your computer's other cores, so you walk through that door in under a tenth of a second.

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📦 parthh01/sphinx

Sphinx: The Git Hook That Tests Your Understanding

Sphinx is the git hook that makes sure you actually understand the code before it leaves your machine. It works by pausing your push to protected branches, like main, and asking you specific questions about what your changes will do. A separate AI reviewer reads your commit and quizzes you on failure modes and edge cases, not just syntax. If you get it wrong, it explains why and gives you a new scenario to try until you get it right. This ensures that even when an agent writes the code, you retain a real grasp of the logic.

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📦 freshtechbro/claudedesignskills

Claude Design Skills

Claude Design Skills teaches your coding assistant the secret sauce behind those flashy 3D websites you see everywhere. Instead of guessing how to set up a scene or why your animation is stuttering, you get a massive library of specific instructions for engines like Three JS and Babylon JS. The coolest part? It connects the dots between 3D tools like Blender and your actual code, so you can drop in a model and have it ready for the web in seconds. It cuts out the trial and error and gives your AI the exact recipes it needs to build smooth, interactive graphics without you fighting the documentation.

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📦 liamrjohnston/remotion-motion-graphics-skill

Remotion Motion Graphics Skill: The AI Trick That Makes Video Design Look Professional

The Remotion Motion Graphics Skill is the agent toolkit that finally makes AI generated motion graphics look like professional broadcast design. This project stops your coding assistant from spitting out generic, neon glowing, cyberpunk slop. Instead, it teaches the agent to build real, clean, editor ready clips using actual product logos and authentic terminal demos. The coolest part is that it forces the AI to act like a strict visual critic, rejecting its own work until the timing and layout are actually good.

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