Browser-Based Image Inpainting Runs Locally, If One Doesn’t Mind A Big Download

July 10, 2026 by Donald Papp 3 Comments

[Simon Willison] ported the Moebuis 0.2B image inpainting model to run locally in a web browser. The web tool simply requires a user to provide an image, mark a section of it to be removed, and the model will do it’s best to patch up the missing area. The project was handled by Claude Code as an experiment in how things in the AI coding world have evolved, but more on that in a moment.

The existence of this tool shows that it’s possible for this kind of image editing to be done on the client side, running entirely locally with no reliance on remote services or server-side GPU resources. The online demo (GitHub repository here) is available if you want to try it out, but be warned it triggers a 1.27 gigabyte download of the required model on the first run.

What’s also interesting is [Simon]’s write-up, because he used the project as an opportunity to learn what has changed in the realm of AI coding agents. [Simon] is a software developer but in this project he didn’t personally write any of the code. One may think that means he didn’t learn anything other than how to use the tools, but that’s not quite true.

He learned it’s possible to convert a PyTorch-based model to ONXX, that the converted model can run in supported browsers using local WebGPU acceleration, and that the CacheStorage API will work on large files. Last but not least, he learned Claude Opus 4.8 is capable of handling such a project pretty much autonomously, and even created an informative document explaining the underlying architecture.

One may consider AI coding agents to be disasters waiting to happen, but it’s also true that the landscape is changing quickly, and write-ups like [Simon]’s give a helpful peek at those developments.

GPU-Accelerated Autorouter Handles Monstrous PCB Designs

July 1, 2026 by Donald Papp 18 Comments

[Brian] had an absolute monster of a PCB with thousands of nets to be routed, the kind of design that stopped traditional routers in their tracks. It would take months to route by hand, likely trying the patience of a saint in the process. To solve this specific problem he created OrthoRoute, a GPU-accelerated autorouter that he cautions is no more trustworthy than any other autorouter, but at least it’s fast!

A closeup of an extremely high-density board routed by OrthoRoute.

A KiCad plugin, OrthoRoute is so named because traces are laid down in a Manhattan lattice, a grid of orthogonal segments. All components (surface-mount only, no through-hole stuff) go on the top layer of the PCB, and all lower levels contain a grid of traces, connected as needed with blind and buried vias to route everything. OrthoRoute takes a structured and iterative approach, eventually converging on a satisfactory layout.

How does OrthoRouter actually decide how to connect things? [Brian] adapted PathFinder, an algorithm designed for routing FPGAs. Laying out a grid of orthogonal traces and punching down through them with vias to make connections has a lot in common, conceptually, with routing FPGAs. GPU acceleration makes the whole thing far more efficient than pipelining the calculations through a CPU.

OrthoRoute was built to solve a very specific problem, but in the process showed that GPU-accelerated routing is definitely feasible. Check it out in the videos, embedded below the page break.

[Brian] cautions that as-is, OrthoRoute is useful to maybe a handful of people at best, but as a KiCad plugin it’s highly modular and the hard parts are all done. If you want a closer look, or have some ideas about how to repurpose or extend it, check out the GitHub repository.

We’ve seen some nifty KiCad plugins for all kinds of purposes, from breadboarding to giving PCB traces an old-timey look, and even one specifically for designing custom keyboards. It’s not every day we see a plugin aimed at handling high-density boards with thousands of nets, though.

Continue reading “GPU-Accelerated Autorouter Handles Monstrous PCB Designs” →

HamsterOS Crams Complete Graphical Desktop Onto 1.44 MB Floppy

June 29, 2026 by Donald Papp 45 Comments

It’s not every day that there’s a new OS in the works for 386 and 486-era hardware, but [John Swiderski] let us know he working hard to bring HamsterOS to retrocomputing enthusiasts everywhere.

HamsterOS targets a November 2026 release.

HamsterOS is a tiny but full-featured multitasking 32-bit graphical operating system that fits on a single 1.44 MB floppy disk. It’s designed as a floppy-first OS, but can easily be installed to a hard drive and includes a suite of native applications. There’s even DOS support!

The list of features is impressive, many of which are targeted at making life a little easier for those working with vintage hardware. One example we like is the CMOS crash counter, which automatically forces the system into a basic VGA safe mode after three consecutive failed boot attempts.

Speaking of making vintage computing a little easier to handle, [John] also released HamsterWeazle, a free GUI front-end for Greaseweazle, the open-source USB device that makes interfacing to old floppy drives easy. If you’re finding yourself intrigued by software like HamsterOS but wondering how you’d write to a 1.44 MB floppy without already having some old hardware up and running, Greaseweazle over USB — and HamsterWeazle to make it much more user-friendly — is one way you’d do it.

We recently featured GentleOS, a charming and streamlined graphical OS aimed at vintage hardware that makes a point of showing what’s possible when new ideas meet old hardware. If you have a retrocomputing project you want to show off, custom OS or otherwise, let us know on our tips line!

Running Windows NT On The Nintendo Gamecube

June 18, 2026 by Zoe Skyforest 13 Comments

The Nintendo GameCube is known for playing the best version of Smash Bros. and its vaguely rectangular aesthetic. It’s not particularly known for running a workstation OS from the mid-1990s. However, with a little work, your diminutive purple console could also boot up Windows NT if you really wanted it to.

You’ll want a controller that looks *like* this, but not this exact model—because [Jiga Tech] couldn’t get this keyboard controller to work with the ported version of Windows NT.

This is fundamentally possible because, once upon a time, Microsoft built a PowerPC version of Windows NT. The work to make it compatible with the GameCube was performed by a group of contributors—[Rairii], [NTx86], and [stonedDiscord]—with the resulting port made available on Github. It won’t just run on the GameCube, either. You can also boot it on the Wii, and within the Wii-U’s vWii mode, as well.

If you’re interested in seeing what this looks like, there’s a great video from [Jiga Tech] on YouTube that outlines the install process. Just note that the GameCube never really came with a proper keyboard. If you want textual input, you’ll have to fuss with a range of controller-entry methods, or get one of the rare GameCube controllers that had an entire keyboard in the middle. We’re not even kidding, they did exist.

If you’re still obsessed with this generation of consoles, consider trying to order pizza from your Sega Dreamcast. Video after the break.

Continue reading “Running Windows NT On The Nintendo Gamecube” →

An In-Browser Visualizer For GPS Satellites

June 18, 2026 by Zoe Skyforest 9 Comments

Billions of people use GPS on a daily basis, along with the various other satellite navigation systems available today. But few of us spend much time contemplating the fleet of satellites above us that actually makes the system work. [Robert Wolf] has, though, and he’s built a simple visualizer that displays just what those space birds are doing at any given time.

The visualizer runs right in the browser, and displays a cluster of GPS satellites in a 3D view around the Earth. The tool also offers a list of satellites and related data, including signal-to-noise ratio of the received signals from each one, and the ability to play back satellite positions from previous days. The satellite positions are captured from a GPS receiver that [Robert] operates in the UK.

The view isn’t global or complete, since the receiver can only see a certain number of satellites from its location, but it nevertheless gives an idea of where a subset of GPS satellites are flying above the globe. Depending on the selected view, it’s possible to see the satellites superimposed over the world map itself — or from a distant observer’s perspective, as if looking at the Earth from a distance, among other options.

If you’ve ever wanted an intuitive idea about where the GPS satellites live, this tool is a great way to understand it. We’ve also previously discussed the wide range of GPS alternatives that have been developed over the years. If you’ve got your own GPS hacks brewing in the home lab, don’t hesitate to let us know on the tipsline.

The Hackaday Communicator Badge, Re-Imagined With New Firmware

June 12, 2026 by Jenny List 20 Comments

Our recently concluded event in Europe saw the return of the Hackaday Communicator badge — a stylish handheld gadget with a QWERTY keyboard, a LoRa radio, and an ESP32. It came complete with a simple messaging app built into its MicroPython firmware, and by all accounts it was a great success.

But there was certainly room for improvement, which is where [Giovi321]’s new firmware for the badge comes in. It brings support for Meshtastic proper, as well as longer battery life support for GPS module. To install this firmware you will need to have the ESP-IDF but fortunately there are very comprehensive instructions provided to help you. Under the hood it’s running FreeRTOS.

It’s something which is so often missing with an event badge, any sense of how it might have a life after the event rather than becoming a piece of e-waste. The Communicator badge is such a nice physical design that it obviously has potential, so this firmware unlocks it and gives the badge a use out in the real world. We really like it for this, and we’ll be flashing a few of our badges over to give it a shot shorlty.

If you’re looking to upgrade the hardware on your Communicator, check out the custom RGB keyboard we covered last week.

Custom FM Radio Station Powered By Shell Scripts

June 9, 2026 by Al Williams 21 Comments

[Trwmato] wanted to spend more time listening to a normal radio to cut back on phone use. But the programming wasn’t quite right so, of course, the solution was to spin up a custom radio station!

The station in question uses a Pi Zero to poll podcasts and news from RSS feeds and automatically mixes them with local content and sends it out via Bluetooth. An FM transmitter allows it to still work on the FM radio, too. Grabbing podcasts isn’t very difficult, thanks to podget. The real logic is in how long to retain things and creating a playlist that both prioritizes fresh content while not repeating things too often. Did we forget to mention the whole thing is a collection of shell scripts?

We could see this as the start of a cool project to have a “radio station” for a school, organization, or company. It is easy to understand and modify.

We often argue that the much-maligned bash script is sometimes the right tool for the job. You can even do things like critical sections in them.