Show HN

A new interactive solar system visualisation plots more than 526,000 asteroids in real time, along with every tracked satellite currently orbiting Earth. The project, shared by its developer on a technology forum, has drawn strong interest from space enthusiasts and programmers admiring the scale of tracked-object data rendered live in the browser.

Mini-AGI is an open-source project shared on Hacker News, described as a dynamic continual learning model that can be trained on consumer hardware with only 8GB of VRAM. The single post links to its GitHub repository and has drawn 277 upvotes, which suggests strong interest, but the evidence contains no comments or discussion, so what people are specifically saying about it is not clear from the posts.

A new developer tool called Ledge.sh has been launched, offering Markdown notes that can run code snippets directly inside the document. The project, presented on Hacker News by its creator under the Show HN banner, has drawn attention from the developer community. The idea is that notes, documentation, or tutorials become executable, letting readers test code in place rather than copying it elsewhere.

A dermatologist has released an interactive 3D biophysical model of human skin, saying it was built largely through vibe coding — using AI-assisted programming rather than hand-written code. The project lets users explore skin structure and biophysical properties in three dimensions. The unusual combination of medical expertise and AI-assisted development is drawing attention and praise among developers and medical professionals.

A new project called Thoreau BASIC is drawing attention after being released as a 'Show HN' submission, posing the question of what programming would look like if BASIC had never faded from use. The language, presented via its own website, is being discussed by developers nostalgic for BASIC's simplicity and curious about how its design ideas could apply to modern programming.

A developer has released an open-source tool that uses AI to generate Lego-style models, shared on GitHub as ldraw-nova. The project lets users create building instructions or designs automatically using the LDraw format, and it is drawing attention and debate among tech enthusiasts interested in AI-powered creative tools.

A developer has launched an open-source model routing tool designed for coding agents, claiming it achieves performance on par with Astra. The tool routes coding tasks to different models, letting agents reach high benchmark results while presumably controlling costs. Users on Hacker News are engaging with the release, discussing its routing approach and how it compares with using a single frontier model for agentic coding work.

An indie space game called Against All Odds includes a working RISC-V emulator, called PasRISCV, that can boot Linux inside the game itself. The developer shared the technical details of how the emulator was built and integrated into the game's world. Hackers and emulator enthusiasts are praising the unusual feat of embedding a full processor emulation in a game, and debating possible in-game uses for a real operating system.

An open-source desktop companion robot called JBR-001 has been released, built around the Arduino Uno Q and fully 3D printable. The project, shared on Arduino's Project Hub by the maker behind Synthetic AI Data, lets anyone print, assemble and customise their own small desktop robot. It is drawing attention in the maker community as an accessible entry point into hobby robotics.

Developer rsutcliffe has released Nightwatch, a free Mac menu-bar application that notifies users when tonight's sky will be clear, useful for astronomers and stargazers. The tool is available on GitHub as an open-source project. It is drawing attention in the technology community for its simple, practical take on weather-based notifications.

A developer has launched an interactive 3D model of the Enigma machine, the German cipher device used during World War II, on the website enigma.design. The project lets users operate a virtual recreation of the historic encryption machine in the browser, drawing early attention and hundreds of upvotes on Hacker News, where commenters are praising its craftsmanship and historical accuracy.

A developer has released Audionaut, a free, open-source multitrack audio editor that works across platforms, sharing it with the tech community and publishing the code on GitHub. The project is drawing attention from programmers and audio enthusiasts, who are discussing its features and cross-platform support. Open-source alternatives to commercial audio software remain a popular topic among developers.

A new open-source project called OpenChart is drawing attention as a free alternative to TradingView, a popular charting platform for traders. Its distinguishing feature is an integrated AI agent that works with the user's own charts and analysis. The project is available on GitHub, where developers can inspect the code and contribute. Commenters are weighing its features against established paid charting tools.

A developer has released NSL, described as 'WSL for Linux', and shared it on Hacker News, where it has drawn over 160 upvotes. The project, hosted on GitHub under the name frostyard, inverts Microsoft's Windows Subsystem for Linux concept, drawing interest from developers curious about running foreign environments natively on Linux.

Developer kitao has released Pyxel, an open-source Python retro game engine that includes built-in art and sound editors. The tool lets creators build pixel-art style games entirely in Python without needing separate graphics or audio software. The project, hosted on GitHub, is drawing interest from developers and hobbyists discussing its simplicity and all-in-one workflow for retro game creation.

A developer shared a demonstration showing that combining the NetworkX graph library with Apache pyarrow can reduce memory consumption by a factor of six to seven. The claim was posted in a NetworkX GitHub discussion, where users of large-scale graph analysis are weighing whether the approach is practical for their own workloads and what trade-offs it involves.

Developer Pyxel announced that his MIT-licensed retro game engine for Python, in development since 2018, has passed 18,000 stars on GitHub. The free engine includes built-in pixel art and sound editors, letting creators build retro-style games entirely in Python. The milestone announcement is drawing attention from hobbyist game developers and Python programmers discussing the tool's all-in-one approach.

A developer has released a macOS tool that uses AI to make every photo and every frame of video on a computer searchable, with the code available on GitHub. The launch drew attention on Hacker News, where users discussed how well local semantic search works, privacy implications of on-device indexing, and how the tool compares with Apple's own photo search features.

Niklas Roy has unveiled the Glashütte Trash Clock, a pendulum clock built from discarded materials that requires winding every 30 minutes. The project page details the design and construction of the timepiece, which deliberately subverts the prestige of German clockmaking by using garbage instead of fine components.

A new beginner-friendly Python programming course has been launched that teaches coding by having learners create drawings with their code. The approach aims to make programming more visual and engaging for newcomers. The course is being shared with the developer community, where it is drawing attention for its hands-on, graphics-based teaching method.

Developer turantekin has introduced Parrot on Hacker News, an open-source smart meeting recorder for Mac that includes a Co-Pilot feature for assisting during meetings. The project is available at openparrot.app, and early commenters are discussing its privacy implications, local processing, and how it compares with commercial meeting note tools.