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

Posted by david927 3/30/2025

What are you working on? Any new ideas that you're thinking about?

390 points | 993 commentspage 25

maz1b 3/31/2025|

Continuing to grow MedAngle, the world's first Super App for future and current doctors. Everything that students and graduates could need for premed/medical and dental school, in one place. 90k+ users, 100m+ questions solved, billions of seconds spent on the apps.

dominicfrei 3/31/2025||

I'm working on https://photoboost.app, a tool that turns a handful of selfies into professional AI-generated headshots. Think studio-quality photos without the studio — powered by LoRA fine-tuning and smart prompting.

The goal: minimal input, fast turnaround, and results good enough to use on LinkedIn or resumes. Currently experimenting with ways to reduce training time and improve accuracy with as little as 5-8 images. Also exploring automatic gender/style detection to optimize prompts while keeping everything privacy-friendly.

Would love feedback — what would you expect from a tool like this? What features or improvements would make it a no-brainer to use?

andupotorac 4/8/2025|

What are you doing for privacy and security of both the models, and inferences? Also, do you train for body shape as well?

ilovetux 3/31/2025||

I am working on a versatile and powerful platform for ingesting, transforming, and searching through structured, unstructured, and semi-structured data. It allows for interactive searches, dashboards, alerts, and more.

We are in open Alpha at the moment, but plan on offering affordable plans while keeping the source code available. While in open Alpha and during the upcoming Beta, it is free to use for any purpose.

We will be selling Fair-Source license, meaning that the source code will be released under MIT 2 years after release.

Check it out here: https://github.com/DelveCorp/flashlight/

Feel free to ask any questions here or open an issue in the repo.

ramijames 3/31/2025||

I've been building a productivity tool for content writing teams called Vewrite (https://vewrite.com/).

The problem that I'm trying to solve is that when you are writing a lot of content as a team you often lose track of the state of things because it is passed through email or google docs (or whatever). People tend to manually manage these types of projects with spreadsheets or trello or whatever, but that means that you are manually updating the status.

Vewrite has an integrated editor and a workflow manager, meaning that as you progress through the workflow while doing the actual work, your project management status is constantly kept up to date, too.

starzmustdie 3/30/2025||

Reasoning Gym (https://github.com/open-thought/reasoning-gym)

A library that procedurally generates datasets for training reasoning models (like o1/r1) with verifiable rewards.

chabad360 3/30/2025||

I'm making an NES emulator in Go. Not because other ones don't exist, but because I've been wanting to get more familiar with low level system principles, and there ain't a better way than building one.

I suppose I'll post the link someday. I literally just started today.

thePhytochemist 3/31/2025||

I made this spectrum analyzer/music visualizer recently. It's meant to be easy to use by just going to the URL and looks great on a 4K screen, jameskdouglas.github.io/frequenSee/

For some clients, electronics for a low impedance guitar pickup (pick up all the signal then process it later instead of building in filtering to the pickup).

And an automated design app that turns a 3D model from Fusion into something that's easy to change the parameters on. That way people can easily just type stuff in and move on to manufacturing. This started for staircases - for companies that make like 20 sets of wood staircases on site every day they want to turn that 1hr of drawing into 60s of data input.

linkdd 3/31/2025||

https://link-society.github.io/flowg/

It's a log management/processing software, with visual scripting.

Started out of frustration towards OpenObserve and its inability (at the time) to properly/easily refine/categorize logs: we had many VMs, with many Docker containers, with some containers running multiple processes. Parsing the logs and routing them to different storages was crucial to ease debugging/monitoring.

It was initially built in Go + HTMX + React Flow encapsulated in a WebComponent, I then migrated to React (no SSR). It integrates VRL using Rust+CGO.

It is by far easier to use than Logstash and similar tools, and in fact it aims to replace it.

Contributors are welcome :)

mpduda 3/30/2025||

Still working on my software project for live music production [1]. At the moment, it only creates, forwards, and records MIDI note events, so it can't produce audio on its own. It has to be connected to external or virtual MIDI devices that can create sound. Turns out this is too much of a hassle and kind of a deal-breaker for most people (and to be fair, it is a hassle), so now I'm working on adding VST hosting support directly inside the app. If you're not familiar, VST (Steinberg Virtual Studio Technology) is pretty much the industry standard plugin system that most DAWs support. Different VSTs can create and filter audio data, and in a hosted context audio data can be sent between VST instances before going out to the speakers.

It's been tricky but interesting. VST plugins are basically packaged as DLL files of Windows COM(-ish) objects. Despite primarily being a Windows dev myself, I never worked directly with COM libraries or objects before. My app is written in C#, and .NET does have built-in "COM Interop" support, so it is possible. A few years ago, .NET added a new COM Interop Source Generator system [2, 3], and I'm trying to get it working with that. So far I've been making some progress, but it's still a lot of tedious work to setup.

(There are libraries/packages out there that implement VST in .NET already, but they mostly focus on plugin creation while I only need hosting. They're a lot heavier and more capable than I need. They also didn't use the newer Source Generator approach, so I figured I'd give it a shot myself.)

1. https://www.pulselyre.com/

2. https://learn.microsoft.com/en-us/dotnet/standard/native-int...

3. https://www.youtube.com/watch?v=DZd1SGd7dSU

mooreds 3/31/2025|

I'm still working on my newsletter: https://ciamweekly.substack.com/ , all about customer identity and access management (CIAM).

Recently added a free tier, so working on making sure both the free subscribers and the paid ones get value out of it. I've asked people to pay for my time as a consultant and books I've written in the past, but it is pretty scary to ask folks to pay for my knowledge via a newsletter.

Finding the balance between technical dives, standards reviews, interviews, and CIAM use cases while doing this as a side hustle is an interesting balance as well. And, the weekly cadence can be brutal. But it does keep me on my toes.

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