Cool Software Projects

A developer has created an interactive web tool that allows users to scroll through all 43 quintillion possible permutations of a Rubik's Cube. The project provides a unique way to visualize the massive number of reachable states for the classic puzzle.

Needle2 is a new open-source 45M-parameter agentic LLM optimized for resource-constrained edge devices like smartphones, wearables, and robots. The model supports tool calling and structured extraction, operating efficiently as a 14 MB binary that requires only 28 MB of session RAM.

The classic Project Oberon System has been ported to run on the RISC-V architecture, replacing the original RISC-5 instruction set. This modified version is specifically adapted for use with the Oberon IDE and is available as an open-source project on GitHub.

Alphabet Soup is a new multiplayer word game where players compete to spell the longest possible word using seven randomly generated letters. Participants must strategically use their assigned letters to outscore opponents and claim victory.

A new open-source microblogging platform called textlog has launched to provide a quiet, distraction-free space for sharing thoughts. The minimalist project is strictly text-only and operates entirely without JavaScript.

A new open-source programming language named Wyzer was recently introduced to the developer community on Hacker News. The creators are actively inviting developers to contribute to the project's ongoing development via its GitHub repository.

CopilotKit has released the Channels SDK, an open-source toolkit that allows developers to easily integrate AI agents into popular messaging platforms like Slack, Microsoft Teams, Discord, and Telegram. The SDK features native, interactive user interfaces to ensure a seamless conversational experience across all supported communication channels.

A new tool introduces a simple algorithm and custom color space designed to help digital artists and game developers generate diverse skin tones. It features an intuitive color picker that uses basic equations to make selecting inclusive and varied skin tones easier for creative projects.

Maple-Preview is a 20-billion parameter Mixture of Experts model trained from scratch in a ternary format, achieving speeds of 120 tokens per second directly on an iPhone. While the project demonstrates impressive mobile efficiency, community testing reveals the model still struggles with confident hallucinations on niche topics compared to larger alternatives.

A developer has shared a new open-source Rust crate that implements a SIMD-optimized Viterbi decoder for forward error correction. The project offers high-performance error correction capabilities and is now available for community contribution on GitHub.

A new open-source project called Swiftlet enables users to run massive large language models on Apple devices with remarkably low memory requirements. The tool successfully demonstrates running an 80-billion parameter Qwen model using just 4.3 GB of RAM on a Mac, alongside a 35-billion parameter model on an iPhone. This advancement significantly lowers the hardware barrier for running powerful local AI inference on everyday consumer devices.

A new project named Isopolis reimagines San Francisco as a massive isometric pixel art map. The visualization was generated by a fine-tuned image model that redraws the city's actual 3D geometry tile by tile.

A new project called ssh.place provides a collaborative drawing canvas that users can access directly through a terminal. The tool requires no account creation or software installation, allowing anyone to start drawing instantly by simply connecting via SSH. This minimalist approach offers a unique, frictionless way for terminal enthusiasts to create digital art together.

A new project called Kakehashi introduces an experimental userspace translation layer designed to run macOS binaries on Linux ARM64 systems. The code is currently hosted on GitHub, where developers are invited to contribute to its ongoing development.

A new Show HN project introduces a minimalist blogging platform designed for handwritten posts to encourage slower, more authentic thinking. The service intentionally omits algorithmic feeds and social metrics like likes, focusing purely on distraction-free publishing with native RSS support.

The open-source project Mu was recently showcased on Hacker News as a new toolkit designed to help developers build and manage software agents. Contributors can access the codebase and collaborate on the project's ongoing development through the micro/mu GitHub repository.

A new open-source project named NixOS-DGX-Spark enables users to run the Nix package manager and NixOS Linux distribution on the DGX Spark. This integration brings Nix's reproducible package management to the desktop AI workstation. The developer is actively seeking community contributions on GitHub to help expand and refine the project.

A new Show HN project named creakwork12 lets users make their Framework 12 laptop hinge sound like a rusty, creaky door. Fittingly, the novelty software created by developer ArcaEge is written entirely in the Rust programming language.

A new open-source terminal emulator named Shitty has been released on GitHub, intentionally sacrificing memory safety to achieve maximum processing speed. Despite its humorous moniker, the creator emphasizes that it is a serious project designed to outperform existing terminal alternatives.

A 15-year-old aspiring engineer has successfully designed and built a custom 3D printed cycloidal gearbox. The teenager recently showcased the mechanical project on Hacker News to share the build with the community. The open-source design files are now available on GitHub for others to download, modify, and contribute to.

CostPerPrompt offers live API pricing and real-world cost calculators for over 232 AI models, including GPT, Claude, and Gemini. The platform enables developers to accurately estimate and forecast expenses for chatbots, API budgets, and token usage across rapidly changing generative AI workloads.

A solo developer has spent two years building a new open-source web browser that recently achieved a perfect 100% score on the Acid3 test, serving as a strong proof of concept for the project. Although the benchmark is largely obsolete for modern web standards, the community is highly engaged, requesting a Linux release and modern performance benchmarks to compare its speed against industry giants like Chrome.

Distilling the Chinese AI model DeepSeek into GPT-OSS does not transfer its strict censorship on China-sensitive topics. Despite DeepSeek V4 Flash being heavily censored, models trained on the distilled data retain the baseline censorship levels of the untouched American foundations.

Kedge is a new full-stack cloud platform that allows developers to deploy websites, applications, and containers to public HTTPS URLs using SSH or Git. The service simplifies backend infrastructure by providing forkable virtual machine snapshots and a globally distributed SQLite database.

A new open-source inference engine named turbo-fieldfare enables users to run the Gemma 4 26B-A4B language model locally on any Apple M-series Mac. Remarkably, the highly optimized tool requires only about 2 GB of RAM, significantly lowering the hardware barrier for running large AI models on everyday laptops.

A new tool called CheapFoodMap helps users find quality meals under $10 across the United States. The map highlights hidden gems, lunch specials, and cheap eats that are worth the drive. The platform is completely ad-free and contains no sponsored placements to ensure unbiased dining recommendations.

A new Hacker News project introduces a local merge queue designed for parallel Claude Code agents. The open-source tool safely queues code modifications to prevent file conflicts when multiple AI assistants work in the same repository. This allows developers to run concurrent AI coding tasks locally without overwriting each other's changes.

A new lightweight userscript called HNewhere allows users to view Hacker News discussions directly on article webpages without needing to open a second tab. The tool seamlessly embeds community comments alongside the original content to streamline the browsing experience.

A new open-source project named ZIL introduces a relational knowledge language and Datalog DSL designed specifically for AI applications. Implemented in Lean 4 and inspired by Google Zanzibar, the system features a Clojure runtime and toolchain to help developers structure complex data.

A new AI-native web application brings 3Blue1Brown's Manim mathematical animation engine to the browser via WebGPU. This tool enables users to seamlessly create, edit, and refine complex mathematical animations directly online without requiring local installations.