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mdn0

mdn0 on Hacker News

Show HN: DejaShip – an intent ledger to stop AI agents from building duplicates

Posted by mdn0 on Tuesday March 03, 2026 @11:43AM
from the show-hn dept.

https://github.com/mingulov/dejaship

When you give an AI agent a popular task like "build a micro-SaaS to make money," hundreds of agents are triggered to build the exact same things.DejaShip is a semantic coordination layer to stop this wasted compute. Before writing code, the agent checks the "airspace". If a lot of similar projects already exist, the agent can pivot to a new idea, or if it is free in its choice, it can prefer...

( Read More... | no comments | on HN )
Re:Show HN: Pdf-rfc3161 – Pure JavaScript library for RFC 3161 PDF tim... on Wednesday January 14, 2026 @02:55AM (#46613462)
Thank you for the reply and for mentioning pyHanko!

Yes, it is in Python and much more powerful/comprehensive.

I personally really prefer Python too, but unfortunately it is too heavy for Cloudflare Workers and similar edge environments (due to the WebAssembly overhead etc). It is survivable, but consumes significantly more resources.

That is exactly why I created this tool - it stays small and lightweight, and definitely would not grow into full signing support.

Show HN: Pdf-rfc3161 – Pure JavaScript library for RFC 3161 PDF timestamps

Posted by mdn0 on Tuesday January 13, 2026 @03:20AM
from the show-hn dept.

https://github.com/mingulov/pdf-rfc3161

Hi HN,I built pdf-rfc3161, a lightweight pure JavaScript/TypeScript library for embedding trusted RFC 3161 timestamps into existing PDFs. It runs in Node, Cloudflare Workers, and browsers - no native dependencies.Great for proving a document existed at a specific time without full digital signatures. Supports LTV for long-term validation (embeds cert chains and revocation info).Live demo:...

( Read More... | 2 comments | 2 points | on HN )