Cool Software Projects

OpenTrailPaper is a new open-source firmware designed for the LilyGO T5S3 4.7-inch e-ink bike computer. It provides cyclists with essential navigation and tracking features, including offline maps, GPX routing, FIT recording, and Bluetooth sensor integration.

Moadim.io is an open-source loop engine that enables developers to schedule and run AI agents such as Claude, Codex, Hermes, and Pi. The platform executes these automated tasks over MCP and REST protocols to seamlessly integrate autonomous AI workflows into existing systems.

A new terminal assistant named TERMy has been introduced as a fast, lightweight alternative to LLM-based command-line tools. It leverages NPC-Forge, a framework designed to build conversational agents that run entirely on the CPU without relying on machine learning.

A new Safari extension called Weedout automatically filters out YouTube videos labeled as "Made with AI." The tool provides users with a simple way to avoid AI-generated content while browsing the platform.

A new AI-powered tool called HN Match Maker has launched to streamline the job search process using Hacker News monthly hiring threads. The platform automatically connects candidates seeking new roles with employers looking for talent by intelligently matching job postings with applicant profiles.

A new open-source tool called slotstream enables users to run the massive 104GB Qwen3.8-Flash-Next language model on Apple Macs with significantly less RAM. The project achieves this by streaming model experts directly from the SSD, reaching speeds of around 12 tokens per second on a 48GB machine. Built with MLX and Swift, it also provides an Ollama-compatible API for seamless integration.

A new open-source browser application called Laser Graffiti allows users to create interactive wall art using a laser pointer, a webcam, and a projector. The webcam tracks the laser's movements in real time, prompting the projector to instantly paint the drawn strokes onto the wall.

A new project features a battery-free PCB business card that harvests NFC energy from a smartphone to power an onboard microcontroller. When tapped, the card draws enough radio frequency power to illuminate 21 animated LEDs without requiring an internal battery.

A developer has released Defragger, a new Linux filesystem defragmenter built with Rust and a user interface powered by Qt Quick and Kirigami. The project was inspired by the creator's nostalgia for the classic visual of moving blocks seen in older disk optimization tools. It offers a modern, open-source alternative for maintaining Linux storage performance.

Sesame is a new local-first, open-source password manager for Windows that allows users to securely import and store passwords, 2FA codes, and recovery details. The application ensures your vault never leaves your device and is currently available as a free download.

Open-source developers have released OpenTIE and OpenXWA, which are modern engine ports of the classic space combat games TIE Fighter and X-Wing Alliance. The projects are hosted on GitHub and are currently seeking community contributions to help further their development.

Experiential Labs has introduced an open-source alternative to OpenRouter that serves as a unified gateway for closed, open-source, local, and custom AI models. The platform provides a single control plane to manage these diverse models while utilizing usage data to continuously improve their performance.

IndexFlow is a new open-source search engine indexing infrastructure built with the Rust programming language. The platform introduces advanced features such as inline SEO quality gates, fair multi-site scheduling, and a rolling quota circuit breaker. These capabilities aim to provide developers with a highly efficient and equitable solution for managing large-scale web indexing tasks.

A newly released interactive visualization exploring the characteristic vocabulary of Claude has been praised by readers for its clean design and concise presentation. The project sparked a broader discussion about how human communication is increasingly adopting AI language quirks and prompt-engineering habits in everyday interactions. Additionally, users debated the rapid integration of new AI-specific terminology and corporate jargon into enterprise workflows.

A project showcased on Hacker News introduces Voronoi Go, an innovative variation of the classic board game that replaces the traditional grid with a fluid, geometry-driven playing field. Players must navigate this continuous spatial environment to capture territory and outmaneuver their opponents.

A new tool allows users to instantly design custom theme parks using simple text descriptions. By detailing their desired roller coasters, rides, and scenery, users can watch their virtual amusement parks come to life in seconds.

TeXbrain is a new open-source LaTeX editor that leverages WebAssembly to run pdfTeX entirely within the browser. The platform provides a comprehensive writing environment featuring live previews, real-time collaboration, and built-in Git integration.

LatticeDB is a new open-source project that brings the simplicity of SQLite to graph databases through an embedded, single-file design. The knowledge graph database features built-in vector and full-text search capabilities specifically tailored for AI and RAG applications. It was recently showcased on Hacker News as a lightweight solution for developers building intelligent apps.

A new project named CarWatch transforms a vehicle into a local AI chat agent using a Raspberry Pi 5 and a dashcam. Powered by the Qwen language model, the system runs entirely offline to provide an interactive, conversational experience for drivers.

A developer has introduced a new self-hosted deployment automation tool designed for Windows teams shipping applications to IIS. The platform includes a built-in NuGet repository, OpenAPI v3 REST API, and PowerShell execution capabilities. Additionally, it features a unique pricing model that is licensed per server rather than per target.

A new menu bar app called ambient-context tracks your daily workflow by capturing on-screen text rather than taking screenshots. It automatically converts this ambient data into Markdown files, giving users a searchable written record of their work context.

A developer has created a standalone BASIC interpreter that boots directly on modern UEFI machines without requiring a traditional operating system. This bare-metal environment revives classic programming by providing users with 27 GB of space to experiment and write code.

A new graphical user interface library named adi2 has been released for the Ada programming language. It brings modern web-like development features to the ecosystem by utilizing SDL3 for rendering and allowing developers to define and style interfaces with XML and CSS.

OzBrain is a centralized knowledge platform that acts as a shared brain for both human teams and AI agents. It provides a single, structured source of truth that allows tools like Claude, ChatGPT, and Cursor to seamlessly read and write data, ensuring consistent context across different platforms.

OzBrain is a new shared knowledge platform that acts as a unified brain for human teams and various AI and coding agents to read and write data. It provides a single, structured source of truth that seamlessly integrates with popular tools like Claude, ChatGPT, and Cursor to keep your entire workflow in sync.

A new open-source project called Rex was recently showcased on Hacker News as a parallel functional programming language tailored for scientific workflows. Developers can explore the source code and contribute to its ongoing development via its official GitHub repository.

A developer has trained a compact 125 million parameter transformer model to autocomplete piano performances in real time. The model runs entirely on-device, enabling musicians to generate MIDI accompaniments locally without relying on cloud processing.

A new experimental tool named Huzzah has been shared on Hacker News, introducing a novel approach to coding with artificial intelligence. The project aims to rethink the software development process by offering developers a completely new way to interact with AI.

A new interactive tool showcased on Hacker News allows users to visualize the architecture of any Hugging Face model through animated maps. This visualization platform helps developers and researchers easily explore and understand the complex internal structures of various machine learning models.

Mic Drop is a new free, browser-based multiplayer karaoke game that allows two to eight players to sing together without needing an app or physical microphone. The web-based title serves as an accessible alternative to Grab the Mic. During gameplay, players receive a random word and must buzz in to sing a line from a real song containing it while friends vote on the performances.