A motion capture App that uses a probabilistic approach to fully automate the labeling and mapping process. I have this algorithm for quite a while in my head and want to use it to get up to speed with Godot and Rust. Intended to work with marker-based systems and eventually on unsynchronized multi camera setups
Ask HN: What are you working on? (July 2025)
621–630 of 900 posts
Re: Ask HN: What are you working on? (July 2025)
#622I am working on a world model for computer systems (world).
Do LLM Agents really understand Linux?.
"Understanding" meaning.. can they predict the outcome of their actions before executing them? Computer system is irreversible.
World model for computer systems is crucial next step for computer use agents to reliably plan their actions over long horizon.
Links to draft: https://open.substack.com/pub/disastermanagementtechnologies...
Re: Ask HN: What are you working on? (July 2025)
#623I'm working on Paint Launcher (beta) – a minimalist Android home screen without icons, where you paint tappable zones onto your wallpaper instead. You can try it out now here:
https://play.google.com/store/apps/details?id=com.lukew3.pai...
Re: Ask HN: What are you working on? (July 2025)
#624pgqueuer turns vanilla PostgreSQL into horizontally-scalable job queue with zero extra infrastructure. If you’re running Postgres and want to ditch extra queue clusters, give it a spin and let me know how it holds up.
Re: Ask HN: What are you working on? (July 2025)
#625Working on Tritium, the legal IDE in Rust ( https://tritium.legal/ ) This month I'm improving CI/CD for e2e testing across Windows, macOS, Linux and Android. Also adding support for unlocking password-protected PDFs and Word docs and improving OCR. OCR runs in the background and leverages native OS OCR where available and a pure LSTM Rust implementation elsewhere. Generally improving the word processor and looking fo…
Have you ever thought about a kind of a diff format for legal texts / documents / cases? And what are transactional lawyers btw?
Transactional lawyers are lawyers that primarily work on transactions, eg, mergers and acquisition, bond or share issuances, etc. It means they spend most of their time drafting, reviewing and negotiating deal documents rather than, eg, going to court.
I'm not the person you responded to but there are various diff programmes out there that lawyers use. I think they tend to be proprietary formats though. Lawyers pretty much all work in MS Word so any comparison software needs to work with that.
Re: Ask HN: What are you working on? (July 2025)
#626I'm building https://adeptli.org with the goal of making personalized learning available to anyone with an internet connection. It's pay-as-you-go, and everyone starts with free credits to check it out and not incur costs if they don't find it useful. I'm still very early in development and very open to feedback!
Re: Ask HN: What are you working on? (July 2025)
#627I'm digitally cataloging all US vintage print advertisements I can get my hands on ( https://adretro.com ). The backend is built on MySQL and Lucee and the full page ads published with Notion and Super.so. I'm using OpenAI vision to extract entity data from the images. So far I've cataloged about 1500 advertisements out of the ~100,000 in my possession. Of which that is probably only 0.1% of all the major material ou…
What about having a contribute button? I know this must be a lot of work and it's such a cool idea! If you had a way to contribute on the join page I would chip in for sure :) My husband is a writer and he uses newspapers.com to research a lot of vintage newspapers for historical context. I can imagine this being a great resource for him.
Thanks I might try that! My impression of donation pages is the conversion rate is extremely low but it will be easy to add nonetheless. I might get better results with offering something in return, like Patreon (not sure what kind of patron content I want to regularly produce though) or products.
There is a much larger database of small ads that I am not publishing on the site, mostly because they add a lot of clutter. But to a researcher they may be valuable. Eventually I want to make the backend database available to people like your husband. Something like newspapers.com makes a lot of sense, thanks for the idea!
Re: Ask HN: What are you working on? (July 2025)
#628Been working on https://www.stainedglassatlas.com.
Trying to document and map as much of the publicly accessible stained glass as possible. The goal being the next time you visit a new city or town, you'll know where all the beautiful stained glass is to go see. Just recently added support for countries outside of North America. No exciting tech (vanilla HTML/CSS/JS). But excited for folks to check it out!
Re: Ask HN: What are you working on? (July 2025)
#629I'm copying the Puppeteer / Playwright client API to run in a Chrome extension using the native Chrome extension APIs. It is possible to run Playwright inside a Chrome extension, however, it requires the Chrome DevTools Protocol (CDP) to automate a browser which really hurts the user experience, is very slow, and opens security vulnerabilities. Chrome extension APIs can accomplish maybe ~85% of the same functionality…
Cool concept, would you expect this to be compatible with Firefox/Safari as well? Safari in particular would be useful as it doesn't natively support Puppeteer/Playwright.
Absolutely. However, it is easier to start with just Chromium flavor of browsers.
The two important concepts from Puppeteer/Playwright are managing the lifecycle of pages (tabs) and frames and the other is using handles / locators.
There are a lot of limitations using the extension API in any browser instead of CDP / Webdriver BiDi. I'm curious, how would you use this idea?
Re: Ask HN: What are you working on? (July 2025)
#630I work on portsentry (https://portsentry.xyz) - A portscan detection and response tool. It was first released in 1997 and abandoned in 2003. I’ve been a user for a long time but needed several features so I adopted the project in 2022.