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Ask HN: What Are You Working On? (Nov 2025)

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Re: Ask HN: What Are You Working On? (Nov 2025)

#841
After taking a break from frontend development from a large corporate client. I wanted to get into iOS development to see how mature SwiftUI has become and finally get a chance to build my first iOS app. The result of that: PeekCard - https://peekcard.app

A simple iOS app for scanning (almost any) barcode and storing in the app, or adding it to your home via a widget. No tracking, no subscriptions, just a simple free app that is pretty simple to use and does the one thing I want it to do.

Building my own software has been super refreshing compared to working within a large organization. I really enjoy the path of just developing and it is fun to get into something different than React/TypeScript and Java. It was also really interesting to go through the process of publishing the app in the Apple App Store. Heard so many bad stories, but it was OK. Definitely not great, but not as bad as I was expecting.

Two learnings from this so far:

1. I do not think that I would want to do any Swift development in a large organization. Super fun to build indie style, but I can't imagine having to support 5+ years of old iOS versions. 2. I ditched most social media a long time ago and if you do not have any personal promotion channel, you are super limited into reaching any potential users for your software. I still do not know how to deal with this; I do not have any ambition to go back into building a social following. I just like building the "thing", but just building it is definitely not enough to get any traction.

For the current project I am building another iOS app, a bit more complex, also something I want to use myself. I was considering building with React Native, but ditched that plan because when I am building for myself, there would (I think) be a lot of overhead in testing Android.

For now I really like what I am doing, but financially I think I should consider going back to Java/Scala or React dev for a corporate client :-|.

Re: Ask HN: What Are You Working On? (Nov 2025)

#842
Building Valori, a Python-native vector database. It’s basically Lego blocks for embeddings: storage, indexing, quantization — all modular, all hackable. The goal? Let anyone plug in their own models and search pipelines without touching C++.

PYPI: https://pypi.org/project/valori/

Re: Ask HN: What Are You Working On? (Nov 2025)

#844
I'm starting to shift my energies towards building more hardware and less web/mobile apps for side projects.

I'm currently working on Dice of Sending - for when you want to roll physical dice but you play DND online. This is mostly just for fun with my DND group.

https://github.com/TravisBumgarner/dice-of-sending

Re: Ask HN: What Are You Working On? (Nov 2025)

#845
Working on UPSS (Universal Prompt Security Standard) - an open-source framework for managing LLM prompts securely at scale.

The problem: Most organizations hardcode prompts directly into application code, creating security vulnerabilities (90% prompt injection success rate in typical deployments), operational inefficiency (3-5 day deployment cycles for simple prompt changes), and compliance gaps (insufficient audit trails for SOC 2, ISO 27001).

Our approach: - Externalize prompts from code with secure configuration management - Implement modular middleware architecture with composable security primitives (BasicSanitizer, LightweightAuditor, SimpleRBAC, InputValidator) - Provide complete audit trails and version control with approval workflows - Support both startups and enterprises with practical, not theoretical, security

Version 1.1.0 is now available with Python implementation and examples for Node.js, Java, Go, Rust.

We're actively looking for community contributions - security primitives, framework integrations, language implementations, and adoption stories.

https://github.com/upss-standard/universal-prompt-security-s...

Re: Ask HN: What Are You Working On? (Nov 2025)

#846
Working on cross-flock discovery in sanctum [1] so I can cut a 1.0 release hopefully before Christmas.

I am always looking for more people to test and play with it or even review the code. We've got a nice little user community going.

Usually this comments drowns in the crowd of the massive amount of awesome stuff people are building, but if you find sanctum useful, hit me up. Good things are happening.

Stay happy

[1] https://sanctorum.se

Re: Ask HN: What Are You Working On? (Nov 2025)

#847
An AI (not LLM, but image-based one) based tool which transforms photos into visa compliant photos.

You take a selfie, pick document type (China Visa online, Green Card lottery, etc) and the tool knows what size it should be, head height, shoulders position and other requirements. AI is used to detect head position, emotions, objects and other details to provide better recommendations

Check it out and let me know what you think: https://ishotaphoto.com

Re: Ask HN: What Are You Working On? (Nov 2025)

#848
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.

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