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

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

#601

Post by zygentoma »

https://github.com/zgtm/localsetup

Hobby. Very rudimentary, not everything working yet.

Think ansible for your user account (except it will definitely not be ansible for your user account).

Whenever I have a new machine, I do the same steps over and over again:

- Installing some packages (like make)

- Setting up an ssh key

- Cloning some git repositories

- Setting up dotfiles

- Installing rustup / rust

- …

Until recently I tried doing all of that with a bunch of bash-scripts, but that turned out to be messy and not a joy to maintain. So now tried a slightly different angle with a rust tool that you can just pull out of the CI, no dependencies, and it will setup everything (for me).

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

#603

Post by nhatcher »

ddahlen wrote: post #550

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…

Hi, this looks amazing! Can't wait to check it out properly tonight. What are you using for numerical integration?

I did this last month: https://www.nhatcher.com/three-body-periodic/ https://github.com/nhatcher/three-body-periodic

There are a couple of half baked integrators there :)

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

#604

Post by seism »

claviska wrote: post #151

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…

The "using with AI" support is really interesting, should help bootstrap some serious vibe coding.

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

#606

Post by ramon156 »

jesse__ wrote: post #67

I've been working on a 3D voxel-based game engine for like 10 years in my spare time. The most recent big job has been to port the world gen and editor to the GPU, which has had some pretty cute knock-on effects. The most interesting is you can hot-reload the world gen shaders and out pop your changes on the screen, like a voxel version of shadertoy. https://github.com/scallyw4g/bonsai I also wrote a metaprogramming…

Do you know the whole story about HyTale? I feel like you'd be an amazing fit to help out there.

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

#607

Post by Havoc »

paul_manias wrote: post #593

In the last 7 days I implemented a complete XPath 1.0 parser & evaluation system from scratch in C++20. Right now I'm adding support for XPath 2.0. Codex in the cloud has been leveraged to do 95% of the work and Claude 5%. We've output 10.5K LoC and 774 individual tests to ensure compliance to the spec. Lately I've been feeling like we're living firmly in the future. This would easily be an 8+ month project on my own…

I'd imagine part of it is that there are xpath parsers on github already, so it's not entirely greenfield for the models.

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

#608

Post by ramon156 »

ryanrasti wrote: post #394

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…

Interesting! have u taken a look at safeql? https://safeql.dev/

I'm personally not a fan of query builders for SQL. it's already a defined language, why are we trying to move away from queries? On top of that SafeQL is only a dev dependency, there's no abstraction. it gets ran through any query client you want

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

#609

Post by emrekutlu »

https://cafe.io

It is a DNS service for AWS EC2 to keep the ever changing IPs when you cannot use the Elastic IP like ASG or when you don't want to install any third party clients to your instances.

It fetches the IPs regularly via AWS API and assign them to fixed subdomains.

It is pretty new :) still developing actively.

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

#610

Post by raphui »

I’ve been working on a custom RTOS for Cortex-M for the past 10 years: https://github.com/raphui/rnk

It started as a way to learn RTOS internals, and over time it has grown into something with lots of nice features. I’m even using it in a dirtbike anti-theft tracker I am building.

Also, this month I did a weekend challenge to build an embedded software parameter DSL and compiler. Its goal is to let firmware developers define configuration values, thresholds, constants, and other application-level parameters in a structured, human-readable format, and compile them into binary data that the firmware can directly use.

https://github.com/raphui/epc

Happy to get any feedback :)

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