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Posted by david927 3/30/2025

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

What are you working on? Any new ideas that you're thinking about?
390 points | 997 commentspage 26
jrozner 3/30/2025|
Building Based Security (https://www.basedsec.io), a startup in the zero trust/identity space creating immovable, attestable, hardware backed identities that can be used for strong and continuous authentication but not moved from the device. We can guarantee the user and the device are known, the user is assigned the device they are using, and characteristics of the identity matches the defined policy. The initial product offering is tied to GitHub/GitLab, offering secure authentication for git over ssh operations with plans to expand to general ssh access and additional systems with pluggable access control.
EthanHeilman 3/30/2025|
That's really cool. Are you using OpenSSHes yubikey support or building your own?
jrozner 3/30/2025||
We’re leveraging ssh certificates which are backed by keys stored in a variety of hardware. For yubikeys we’re leveraging piv and the standard ssh tooling. We’re determining whether we’ll be able to use a pkcs11 implementation for TPMs and Secure Enclave or whether we’ll need to build a custom agent.
eternityforest 3/30/2025||
A mostly vibe coded(since I don't plan to ever go commercial with it) app for music composition, which I suspect real musicians would mostly not like..

You can create patterns, play those patterns on a specific beats, add melodies(HTML tables of notes!) with lyrics, add chord changes to determine how the patterns are played, etc.

It's meant to be CAD-like, so you're working as high level as possible, not looking at some raw notes and having to go look up what chord it is every five seconds.

There's plenty of features that don't exist but look like they do, but it does work.

https://eternityforest.github.io/songcad/

anderber 3/30/2025||
I've always wanted workout tracking apps to take into respect how to track gymnastic rings, but no luck. So I decided to build my own: https://gravitygainsapp.com/
modo_mario 3/31/2025||
I'm continuing work on my Saas for hairdressers.

I'm happy to say I'm no longer stuck on endless little business logic decisions. Now I'm mostly stuck on essentially creating a (more) complicated google calendar interface. (React + MUI) I stopped work when everything was still wonky but i could quickly make appointments on the fly with it. A few days ago when trying to wrap my head around my own code i kind of regretted that decision. It's a bit more complex of a UI piece than what i've tried my hand at before and my current holdup is (re-)implementing proper drag & drop to edit appointments after i rewrote a piece of the underlying stuff.

Tom-G 3/30/2025||
I'm working on a VS Code extension, so I don't have to write code

https://marketplace.visualstudio.com/items?itemName=Ridvay.r...

gimenete 3/31/2025||
I'm working on an alternative frontend for GitHub https://githero.app/

The focus is on providing a better experience: faster, with smoother interactions, with higher information density and a lot more focused on your daily work (with features such as bookmarks and drafts).

It's web-based but there will be also desktop apps (thanks to tauri) that will integrate with your local git.

If you start using it and want to ask for feature requests or notify bug reports please go to the discord server: https://discord.gg/RHCJvUSbr5 Thanks!!

jascination 3/31/2025||
I'm an app developer, and I've had such a terrible experience with deferred deep linking providers like Branch and Appsflyer that I decided to build a competitor - https://DeepLinkNow.com

Why I think it's good: deferred deep linking has become an also-ran feature for MMPs whose primary focus is tracking users and advertising.

It's so bad that I can't even open deep links for Tiktok on my home network, because onelink links are blocked by adguard.

So that's why I built DLN. It's brand new and open for beta testing, I'd love some feedback and feature requests + to know how people use deferred deep linking.

arbirk 3/31/2025||
Just partnered with an old friend. We want to see if we can tackle movie recommendations in the streaming age. Exited to begin the journey. https://pressplay.app/
nabeards 3/31/2025|
Just get a cert error…
benliong78 3/31/2025|
I’m building a on-device AI App that supports a good variety of open-weight LLM Models. It’s mostly so that I can gain an intuition on what goes on when we do inferencing, but my longer term plan is

1. Support on-device RAG to allow chatting with your own documents on mobile offline 2. Support MCP on-device, taking advantage of information that’s (only) available on your phone, like calendar events, health data, etc. These shouldn’t need to be anywhere but on-device. 3. Allow on-device AI to use shortcuts(?)

I think most of the functionality are well served on desktop front with Ollama and LM Studio, but moving these functionality to mobile offers a great learning opportunity.

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