Hacker News: cracadumi

New comment by cracadumi in "Magnifica Humanitas"

cracadumi — Mon, 25 May 2026 18:09:06 +0000

Not intrinsically English-bound; the first version had English metadata/anchor assumptions. I just made it language-configured and added --lang fr. It preserves Unicode/diacritics and builds the French Vatican page too.

v1.1 has both EN/FR EPUBs.

New comment by cracadumi in "Magnifica Humanitas"

cracadumi — Mon, 25 May 2026 12:52:35 +0000

Yes for the plumbing, no for the text.

Codex helped write the converter, but the EPUB text is parsed from the Vatican HTML. The script doesn’t rewrite or summarize anything; it just repackages the source into EPUB with TOC, footnotes, metadata, and cover.

New comment by cracadumi in "Magnifica Humanitas"

cracadumi — Mon, 25 May 2026 12:42:09 +0000

I didn't see an EPUB, so I made one from the Vatican HTML: TOC + footnotes, passes epubcheck.

https://github.com/n2ctech/magnifica-humanitas-epub/releases...

New comment by cracadumi in "Show HN: AgentKey – Access governance for AI agents"

cracadumi — Sun, 19 Apr 2026 05:42:41 +0000

Maker here. Short version of why this exists: I got tired of pasting API keys into .env files every time I spun up a new agent. No record of which agent had access to what, no approval workflow, no audit, no revocation story.

AgentKey flips the model. Agents start with zero access. They request tools with a reason via HTTP. A human approves once, and the credential is vended encrypted (AES-256-GCM, per-record IV) only when an agent actually fetches it — never stored by the agent itself. Every request, approval, and credential fetch is in an append-only audit log.

Two things I think are actually interesting vs existing secrets managers:

1. Agent-driven catalog. If an agent needs a tool that isn't in the catalog, it submits a suggestion with a reason. Multiple agents can back the same suggestion, so admins see aggregated demand instead of one-off tickets. That's the "wild" part that makes it feel different from Vault-style vaults.

2. License choice. BSL 1.1, auto-converting to Apache 2.0 on April 1, 2030. I wanted source-available + self-hostable without giving cloud providers a free managed service until the market shakes out. Happy to debate that choice.

Stack: Next.js 16, Drizzle + Postgres (Neon), Upstash for rate limiting, Clerk for human auth, deployed on Vercel. API keys verified with timing-safe compare. No SDK — just HTTP, so anything that can make a request works (Claude Code, Cursor, LangChain, CrewAI, custom).

Things I know are rough: no pre-seeded integration catalog (you add tools yourself, optionally via an AI-drafted setup guide from a docs URL), V1 has no RBAC inside an org, shared credential rotation is still manual. All solvable, but honest about where it is.

Free forever managed, or self-host. Would love brutal feedback — architecture, the agent-driven catalog bet, the BSL decision, threat model, anything.

Show HN: AgentKey – Access governance for AI agents

cracadumi — Sun, 19 Apr 2026 05:40:29 +0000

Article URL: https://agentkey.dev

Comments URL: https://news.ycombinator.com/item?id=47822058

Points: 3

# Comments: 1

Ask HN: Valuable habit you've stuck with? What was key to making it stick?

cracadumi — Thu, 01 May 2025 07:25:49 +0000

Comments URL: https://news.ycombinator.com/item?id=43854647

Points: 8

# Comments: 23

New comment by cracadumi in "Show HN: Pintalk – Public, location-based chat rooms on a map"

cracadumi — Mon, 14 Apr 2025 13:02:09 +0000

Thanks! Appreciate you taking a look. Definitely let me know if you spot any rough edges or outright bugs – feedback is very welcome.

New comment by cracadumi in "Show HN: Pintalk – Public, location-based chat rooms on a map"

cracadumi — Mon, 14 Apr 2025 12:44:08 +0000

Thanks, glad you found it fun! That was the main goal for this initial version.

Good question on evolution. Some ideas that come to mind, building on the core location concept:

Ephemerality: Maybe messages could disappear after a set time (e.g., 24h via TTL indexes) to keep conversations fresh and less like permanent archives.

Discovery/Activity: A heatmap layer (using something like Leaflet.heat) showing areas with recent message activity could be interesting for finding active spots without needing to click every pin. Could aggregate message counts per pin/area on the backend.

Mobile: A native app could enable things like background notifications for nearby activity, but that's obviously a much bigger step.

Definitely open to other thoughts if people find the core idea engaging.

Show HN: Pintalk – Public, location-based chat rooms on a map

cracadumi — Mon, 14 Apr 2025 12:28:00 +0000

Hi HN,

I've been thinking about Paul Graham's idea of Twitter as a communication protocol https://www.paulgraham.com/twitter.html and wanted to experiment with a different kind: location-based chat.

I built Pintalk: https://pintalk.onrender.com

It's a simple web app that lets anyone start or join public text conversations tied to specific latitude/longitude coordinates on a map.

How it works:

Visit the site – the map tries to center near you using browser geolocation or falls back to IP lookup.

Click anywhere on the map to open a chat panel for that location.

Type your first message and hit send – this creates a persistent pin and conversation room at that spot.

Click an existing pin to view the conversation and join in.

No login or registration required. You get assigned a temporary username like User_1234. Messages and pins currently stay indefinitely.

The goal was minimal time-to-value – just click and chat. It's an experiment in discovering real-time, hyperlocal public discussions. What happens when conversations are anchored to places?

Tech: Node.js/Express, WebSockets, MongoDB/Mongoose, and Leaflet.js on the frontend. Deployed on Render.

It's basic right now but functional. I'd love to get your feedback, bug reports, or thoughts on the concept.

Try it out: https://pintalk.onrender.com

Thanks!

Comments URL: https://news.ycombinator.com/item?id=43680569

Points: 3

# Comments: 4

Accelerate Your Learning with ChatGPT: Free Course by Barbara Oakley

cracadumi — Fri, 06 Sep 2024 08:54:36 +0000

Article URL: https://www.coursera.org/learn/learning-chatgpt

Comments URL: https://news.ycombinator.com/item?id=41464264

Points: 1

# Comments: 0

New comment by cracadumi in "Blood Disorder: Unveiling the Mystery of My Poisoning in Sweden"

cracadumi — Fri, 30 Aug 2024 09:39:40 +0000

In this case it's weird that she didn't want to call the ambulance when he "almost died"

New comment by cracadumi in "Retired teacher's pension stopped as provider refuses to believe she is not dead"

cracadumi — Sat, 20 Jan 2024 12:40:54 +0000

Reminds me of Sogen Kato's story :

https://en.wikipedia.org/wiki/Sogen_Kato

New comment by cracadumi in "Shifting the Balance of Cybersecurity Risk: Security-by-Design and -Default [pdf]"

cracadumi — Fri, 14 Apr 2023 09:00:32 +0000

It's time for SaaS companies to stop charging their users for MFA/SSO. Looking at you Notion and Lokalize, just to mention a couple we use..

New comment by cracadumi in "Ask HN: What's your quarantine side project?"

cracadumi — Fri, 15 May 2020 06:26:04 +0000

The TDA, biggest art student competition in Europe, was scheduled in Barcelona in April. Because of COVID-19 it was impossible for the few thousands students to meet there. So I made a mobile app to host the competition online, which replicated all the rules of the traditional contest. It got around 2000 signups during the week of the contest and made the competition possible remotely. I decided to keep it live and run new contests for artists everywhere in the world during lockdown. You can check it out and vote for your favorite artists, or join the contest yourself, there : https://greatest.app.link.