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

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671–680 of 1001 posts

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

#671

A Kotlin Multiplatform implementation of OpenTelemetry: https://github.com/embrace-io/opentelemetry-kotlin It's been really fun writing this from scratch and trying to design a mobile-friendly API that fits the OTel spec. There's still work to do on OTLP export and various other features - if this project interests you, please do get in touch!

Oh, nice job! I love Kotlin.

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

#672
Work continues for me on Rad[0]. It's a programming language designed specifically for CLI scripts. I was sick of writing Bash scripts and thought we could do much, much better, so that's the goal with this project. Been working on it for a bit over a year now, and I'm using it every day! Still have many big features in mind, such as commands, I suspect I'm still only at the beginning at this journey!

[0] https://github.com/amterp/rad

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

#673

Currently bootstrapping a SaaS side project: https://diplomium.com Diplomium helps educators and event organizers create and deliver authenticated certificates at scale. Instead of manually designing and emailing PDFs, you upload a simple Excel, pick a template, and the system generates + sends personalized certificates automatically—each with a unique QR code for instant validation. The bigger picture: Certificates…

Wonderfull nice looking and clear landing page. Best I have seen in a month. Bravo

Thanks! Every feedback is welcome :)

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

#674
I'm building Table Slayer[0]. It provides tooling to display battlemaps on TV-based tabletops for games like Dungeons and Dragons. The source is open[1] and it's built with Svelte, Partykit, Turso and Three JS.

I'm currently building a prototype hardware component (essentially a large format touch screen) that people can purchase alongside.

[0]: https://tableslayer.com

[1]: https://github.com/Siege-Perilous/tableslayer

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

#675
I’m working on a new vision-language model architecture called Onida. Our aim is to match—or surpass—the performance of leading VLMs like LLavA and CogVLM, while operating at a fraction of the cost. Unlike most existing VLMs, which layer vision components onto a language model as an afterthought, Onida is designed from first principles with a truly integrated approach.

This document [1] outlines our key differentiators, and we’re now inviting beta participants to explore and test the technology.

[1] https://healthio.notion.site/Onida-Efficient-VLM-Architectur...

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

#676
post #10

Currently a one-man side project: https://laboratory.love Last year PlasticList discovered that 86% of food products they tested contain plastic chemicals—including 100% of baby food tested. The EU just lowered their "safe" BPA limit by 20,000x. Meanwhile, the FDA allows levels 100x higher than what Europe considers safe. This seemed like a solvable problem. Laboratory.love lets you crowdfund independent testing of s…

Really nice project. US regulation of food is a joke. Good luck!

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

#677

Building https://fallinorg.com/ , a Mac app that organizes your files. It looks inside each file to see what it’s about, then moves it to the right folder for you. Everything happens on your Mac, so nothing leaves your computer. No clouds, no servers. It already works with PDFs, text, Markdown, and many other file types. Next I’m adding ePub, and later Microsoft Office and iWork support. If you have messy folders any…

I pride myself on being pretty well organized with my digital life, especially files and folders. I’ve been using Hazel (God Knows, since it's beta). Recently, I realized it has become a muscle memory for me to name/rename files, and drop them where they belong while I'm working on or as it happens. This works for me now because I have a weekly routine of digital chores that picks up any slack and missing things that…

Thanks so much for your thoughtful comment and support, Brajeshwar — it really means a lot.

You’re right, Fallinorg currently only supports Apple Silicon Macs. The main reason is that the M-series chips have neural engines and very high memory bandwidth, which makes the AI models run fast and efficiently. On Intel Macs the performance just isn’t the same, but I do want to explore ways to bring a great experience there too. If you’d prefer a refund in the meantime, just let me know and I’ll send it right away — no worries at all.

Also, thank you for pointing out the email confirmation — I’ll definitely add that.

I noticed you mentioned using Hazel for years and building up muscle memory with rules. Right now, Fallinorg is built around content-based AI classification rather than rules. But rules can give a lot of precision and flexibility. Could you share what kind of rules or workflows you relied on most with Hazel? That would help me understand how people like you used it, and how Fallinorg might evolve to cover those use cases better.

Again, really appreciate your support and feedback.

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

#678
I've been working on 'Fragno', a TypeScript framework to build full-stack libraries with. It allows the library author to define backend routes, and provides them with reactive primitives for building frontend logic using these routes. This all embeds into the user's application. Eventually, it should include a data layer as well.

The ideas are in large part inspired by Better-Auth, which is built on top of similar primitives. I hope more libraries will be built in this manner, because I believe that it provides very nice DX for the integrator/end-user.

It's not quite ready yet, but I did write most of the documentation.

https://fragno.dev

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

#679
post #670

Tritium, the integrated drafting environment for lawyers: https://tritium.legal/ Rust cross-platform application leveraging egui. Web preview: https://tritium.legal/preview

That’s really cool. And it almost worked on mobile except I can’t side scroll. Super impressive!

I always wondered what lawyers use for version control. They probably don’t call it that, but they must have a git equivalent in their world, right?

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

#680
I'm launching a new product for my clock-making business: https://DigitalHorology.com

None of my clocks tell the time.

They're all fully automatic GPS-enabled timepieces. For a couple of years I've been developing, hand-making, and selling these clocks that track the moon phase, the sun's position, etc.

My new idea is the tide clock "NautiKron." It's getting a lot of interest from US coastal buyers.

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