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Claude Code vs Codex, a small test

Claude Code vs Codex, a small test

27 Sep 2025 5 min read

This is not a huge difference, but I have seen this pattern repeat a few times now, and I suspect this is why people are saying Codex has an edge over Claude Code (at least for now, until the next Anthropic models come out). While working on HelixKit, I discovered

Setting up a single Rails 8 server with Postgresql and Kamal

Setting up a single Rails 8 server with Postgresql and Kamal

22 Sep 2025 10 min read

Here's a straightforward guide to getting a Rails app going using Kamal, with postgresql as the backend, on a single server, that actually works without you having to figure out a bunch of crazy shit. Kamal 2 is a fantastic bit of code, something between Dokku (which is

Setting up and hardening a Hetzner server

Setting up and hardening a Hetzner server

19 Sep 2025 12 min read

Here are some straightforward steps to harden a Hetzner server, with an explanation of each step so you're not just reciting magical incantations. If you're going to be escaping the world of virtual servers and their associated servitude to the AWS's and Vercels of

DHH is immortal, and costs $200/m

DHH is immortal, and costs $200/m

06 Sep 2025 20 min read

I've been writing code for 3 decades and with the straightforward technique described in this post, I am leveraging AI to write substantially better code than what I would be able to by myself, and learning more about being a better developer than I have in years. What

Founder Freedom: an upcoming book!

Founder Freedom: an upcoming book!

27 Aug 2023 5 min read

Update: For various reasons to do with the state of GrantTree when I returned to it, this book won't be published. Or at least not without serious rework. Thanks to all those who reviewed copies of the book! I'm writing a book! The title is not

How to validate your market the lean way

How to validate your market the lean way

10 Apr 2023 8 min read

Every startup founder that's not living under a rock should know, by now, that they're supposed to "validate their market", though probably many aren't entirely clear what it means[footnote]though they might wrongly think they do...[/footnote]. This is true for

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