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Ask HN: What are you working on? (September 2025)

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711–720 of 1001 posts

Re: Ask HN: What are you working on? (September 2025)

#711
I'm doing a PL based on SQLite's VM.

I first tried to expose the VDBE to public usage, so it could be easier to right hand-made bytecodes, but it would require an effort that I'm not quite have to a side project. So instead I'm extending SQLite's parser to accept things like `let = `, and functions. Alongside, I'm doing a "standard library" so you could build web servers and stuff.

The thing I'm struggling with is managing execution state. I have the idea of doing transactional functions using function coloring (e.g async functions), so each function call opens a new savepoint, and the user could rollback a particular function call in case it got wrong. I put the deadline to be 31 October, if I manage to get this on time I'll post here on HN :)

Re: Ask HN: What are you working on? (September 2025)

#712
post #477

I launched Quiet UI this week: https://quietui.org/ It prioritizes accessibility, longevity, performance, and simplicity. With the autoloader, one script tag loads components dynamically without downloading the entire library. (npm also available.) Theming uses color-mix() and OKLAB to create uniform color palettes from a single CSS property. Adaptive palettes are used for dark mode. All form controls are form-associ…

Your docs are great! How did you create them? Did you use external tools to generate them?

I especially liked the browser frame page. It’s so beautifully crafted. I would move the inception example onto the homepage and up on the examples as it is a good example of love put into the whole project and its execution. https://quietui.org/docs/components/browser-frame#embedding-...

Re: Ask HN: What are you working on? (September 2025)

#713

I'm on the cusp of launching an interior design software I have built with my partner (she's the interior designer, I'm the coder). https://inspec.design My read of the industry in terms of software is that it's split into 3 groups: 1. Interior visualisation (basically 3D renders) which largely target the what-if amateur market 2. Big, clunky and old software tools for professional interior designers working on huge…

Working with a partner has never been a problem, don't worry.

Re: Ask HN: What are you working on? (September 2025)

#714

I'm working on Typegres, a new data layer for the modern stack (TypeScript + PostgreSQL). My take is that for years, ORMs have hidden the power of PostgreSQL behind generic, database-agnostic abstractions. This made sense in 2010, but now it's a bottleneck. Typegres rejects this. It's a "translator, not an abstraction," designed to express the full power of PostgreSQL (all statements, built-in functions, etc.) in a t…

Neat idea. Would you say that biggest difference from something like Kysely is the focus on extracting common calculated SELECT targets into methods that can easily be accessed when querying? Or perhaps it's more thorough with providing TS versions of all the SQL syntax available? The list of reference fields/methods in your docs is certainly massive.

Re: Ask HN: What are you working on? (September 2025)

#715

Working on orbital dynamics code for my PhD in astronomy, written in rust, it can accurately calculate the positions of all asteroids/comets to within a few meters. Today I am adding a new numerical integration method which should enable me to predict orbits from observations. https://github.com/dahlend/kete I'm working on modeling the motion of observed dust particles coming off of comet 67P, here is are some exampl…

Meters?? that's certainly an exaggeration

Re: Ask HN: What are you working on? (September 2025)

#716

I'm working on a system that helps surgeons make precise bone cuts during knee replacement surgery. Believe it or not, manual cuts are still the standard in that type of procedure. Robotic systems exist but they are very costly, big, and actually add time to the surgery (bad news when you are under anesthesia and your leg is in a tourniquet). It uses 4k stereoscopic capture and bunch of ML models to match bone positi…

This sounds awesome! Can you tell me more about what kind of expertise do you need to develop such a system? As in the most important knowledge one most have to be able to work on such a thing

Thanks, buddy! I'm having fun. There are a few sides to it. There are the actual physical surgical tools that you have to design, test, and manufacture. Then there's the robot that adjusts those tools. That stuff is a lot of CAD and 3D printing. The camera is a big deal and it's a ton of work to get that right. Then of course you have all the software, which is a slew of computer vision models that operate on a local computer in a careful dance of resource orchestration. The software has a lot: UI, grpc services, ml models on containers, inverse kinematics for calculating robot position, hardware interfaces, etc. Then there's a bunch of regulatory, validation, compliance, etc.

To answer your question about expertise, it really depends on what you are interested in. We have some dedicated mechanical engineers with medical device experience. The software is handled by a few computer vision and full stack folks. So there's different skillsets.

I'm a bit of a journeyman and as a result, I am decent across all of it. I always did software and went where the wind blew. It's been 20-something years since I graduated so I've seen a lot. About 10 years ago I got a job I was totally unqualified for, which was R&D for a company that made lab equipment for testing gas and oil. I was solo and had to learn all the mechatronics stuff - CAD, microcontrollers, electronics, etc. Check out this video: https://youtu.be/MA6hnyXx4p4. That specific experience allows me to be the glue in our engineering org.

To work here, you don't need medical experience. We have plenty of that. One of the cool things about engineering, especially software engineering, is that you can float around between verticals. I've learned all about media, finance, petroleum, insurance, waste disposal, etc. The skills translate. If you are purely software, I recommend picking up an Arduino and some motors and building something like a simple pan/tilt mechanism with an accompanying mobile app. Just do it. It might inspire you. I think curiosity and enthusiasm are the most valuable traits one can have.

Re: Ask HN: What are you working on? (September 2025)

#717

I'm working on Small Transfers ( https://smalltransfers.com/ ), a payment platform that makes it very convenient for SaaS / API makers to provide a pay-as-you-go model to their customers. You can charge as little as 0.000001 USD per request. The platform uses our own system for tracking usage, which is settled through Stripe. No crypto, tokens, or wallets. If combined with subscriptions, the pricing can work similarl…

Please consult how "blik" works in Poland. It requires a bank cooperation, but it ultimately became a standard here for payments as an alternative to debit/credit card payment.

BLIK is a bank-backed payment method used at checkout.

Small Transfers is an API for a merchant to charge a customer tiny amounts (as little as $0.000001), which are batched into a single card charge via Stripe.

Re: Ask HN: What are you working on? (September 2025)

#718
https://fooqux.com/ - an experimental tech article aggregator.

For several years now, I've had a routine of collecting articles on topics that interest me throughout the week and then reading them over the weekend. To help organize and streamline this process, I created this website.

The main idea is to gather tech articles in one place and process them with a LLM — categorize them, generate summaries, and try experimental features like annotations, questions, etc.

I hope this service might be useful to others as well.

Re: Ask HN: What are you working on? (September 2025)

#719
Encoding / decoding hidden messages in LLM output.

https://github.com/sutt/innocuous

The traditional use-case is steganography ("hidden writing"). But I see more potential applications than just for spy stuff.

I'm using this project as a case study for writing CS-oriented codebases and keeping track of every prompt and generated code line in a markdown file: https://github.com/sutt/innocuous/blob/master/docs/dev-summa...

My favorite pattern I've found is to write encode implementations manually, and then AI pretty easily is able to follow that logic and translate it into a decode function.

Re: Ask HN: What are you working on? (September 2025)

#720
I've been working on three micro-saas, all built in Elixir/Phoenix:

https://feedbun.com - a browser extension that decodes food labels and recipes on any website for healthy eating, with science-backed research summaries and recommendations.

https://rizz.farm - a lead gen tool for Reddit that focuses on helping instead of selling, to build long-lasting organic traffic.

https://persumi.com - a blogging platform that turns articles into audio, and to showcase your different interests or "personas".

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