Hi, I am Paul and I am a Staff Engineer and Engineering Manager from Germany. Talk to me on LinkedIn or send me an email at contact@paulheymann.de.

Codex, let’s talk Obsidian

Google Docs is better than ChatGPT's broken in-app file system, but it still isn’t great either. Every prompt needs multiple system calls to get the content, which just costs extra tokens, and don’t tell me you can review Google's cryptic approval prompts in Codex. Besides, I am now so used to working with markdown in Bear[^bear] that GDoc feels like a step back.

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Of not appreciating terminal rendering enough

Hacking on TinkerQuest made me really not like terminal sessions on my iPhone. What I want is to have a great UX to interact with my Codex workstation.
This is a new project and I already got some insights:
- Rendering a terminal byte by byte from a tmux[^tmux] stream is hard even with stuff like [xterm.js](https://xtermjs.org/)[^xtermjs].

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TinkerQuest - How to vibe on your phone

The goal was to build my son a TinkerCAD[^tinkercad] course in a couple of days with nothing except my phone. And it worked. He now uses TinkerQuest daily to get ready before the 3D printer arrives.

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TinkerQuest - Autonomous bug agents and cost

New day, no sleep, new problems. I am still waiting in the hospital and still nothing else to do.
- My MVP had issues.

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TinkerQuest - Nightshift and an MVP

It is Sunday; I have time at my disposal and I start working on implementing TinkerQuest. Unexpectedly, I end up in the waiting area of our hospital. Luckily, it is nothing serious, but now I have a lot of spare time at my disposal and it really starts to pay off that I went mobile-first.

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TinkerQuest - herdr all the Codexes

Server? Check. Tailscale[^tailscale]?

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TinkerQuest - Codex on Hetzner with tailscale

New day. New approach. After my misadventure using ChatGPT Work on my phone I build up a Codex sandbox with Hetzner[^hetzner] and tailscale[^tailscale] this time.

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TinkerQuest - ChatGPT Work needs some love

Do you also have a notepad with a dozen ideas on your phone? Stuff that would make life even better or is just cool and interesting to build? I do.

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