Ask HN: What Are You Working On? (March 2026)

The problem: as multi-agent systems grow, agents need to prove who they are, verify each other, and communicate securely. AIP gives each agent an Ed25519 keypair and a DID, with a trust graph built through vouching (like PGP's web of trust, but for agents).

Current state: 14 registered agents, encrypted messaging, trust scoring, MCP server integration. CLI tool + Python SDK.

pip install aip-identity

https://github.com/The-Nexus-Guard/aip

After being a web-focused dev for my whole professional career, I am now developing a mobile app with Flutter.

The app is called Limberly, and it focuses on health and ergonomics for sedentary workers. Us, who sit for a living.

It is scientifically proven[1] that sitting is detrimental to our health, with increased mortality rates. The primary way to reduce the negative effects of sedentary work is to move, and scrolling through feeds on your phone doesn't count as moving :)

This means performing sessions of resistance training, running, biking, but also taking micro-breaks during work sessions.

Research has shown[2] that taking short breaks during work reduces fatigue, and in some cases boosts performance.

Limberly is still in early development, so it's basically a glorified collection of timers (for taking microbreaks, for switching between sitting and standing, and for switching your "mouse hand"), but I do have a clear vision of having a smart system that recommends specific activities to do during breaks, ergonomically setting up your workspace, coach you on correct posture, track statistics etc.

If you'd like to help me test and shape the app as we go, please sign up for the waitlist or DM me here.

https://limberly.app

P.S. I guess this is a required disclaimer these days: The landing page is static and mostly vibe-coded, but the app itself is not. I do use Claude Code to speed up certain plumbing and widget implementations, but the core architecture and logic are designed, vetted and programmed by myself. Being a solo dev, it is important for me that I understand what every class and function is doing.

P.P.S. I don't like using scare tactics like "SITTING IS KILLING YOU!!" but it is sadly a fact. Also, I'm not selling you anything, as the app is free to use :)

Investing in standing desks, HM chairs and split keyboards is definitely a good idea, but what matters most is movement and changing your pose constantly.

Additional reading (use a LLM to summarize these if you don't feel like reading it all):

1: https://pmc.ncbi.nlm.nih.gov/articles/PMC10799265/

2: https://journals.plos.org/plosone/article?id=10.1371/journal...

Lately been deep in PDF/X print production - PDF/X-1a and PDF/X-4 with ICC color profiles and CMYK conversion. Had to build 11 color space converters on top of PDFBox 3.0. Also shipped an AI template generator where you describe what you need and it creates a Handlebars template with sample data, plus expanded the gallery to 38 pre-built ones.

Right now template management lives in the dashboard - edits auto-create drafts, you can compare any two versions as rendered PDFs and roll back if something breaks. Working on an API so coding agents can create and version templates programmatically.