Hold My Hammer

Sheet 04 / Blog

What I'm building and learning.

Build notes and what I'm picking up about AI along the way, in plain language. New entries every few days.

  1. October 5, 2026 · What I'm learning

    Can you build an app with AI if you can't code? 15 months, 7 builds

    I can't code. In 15 months I've built seven apps with AI for about $60 a month. What it takes, what it costs, and the part AI doesn't do for you.

  2. October 5, 2026 · Build note

    I jailbroke a Kindle Scribe to build a handwriting AI assistant

    I jailbroke a Kindle Scribe and built Pen Pal. I write a question with the pen and an AI assistant writes back. What it does, what it cost and what broke.

  3. October 5, 2026 · What I'm learning

    Vibe coding security: I built 7 apps with AI and couldn't secure one

    Vibe coding lets people like me build real apps without code. It doesn't teach us to lock them. The four most common security gaps, in plain English.