Build a Claude Code Personal OS Step by Step in 40 Minutes | Moritz Kremb
The most complete blueprint I've seen yet for turning Claude Code into your personal OS - including a walkthrough of folders, tools, skills, and routines
Dear subscribers,
Today, I want to share a new episode with Moritz Kremb.
Moritz is an AI creator who built a personal OS in Claude Code to manage his emails, create content, and even buy groceries. In this episode, he walks through everything you need to set up your own: folder structure, tools, memory loops, skills, and routines. We also talked about the pros and cons of OpenClaw vs. Claude Code.
Watch now on YouTube, Apple, and Spotify.
Moritz and I talked about:
(00:00) The honest tradeoffs: OpenClaw vs. Claude Code
(09:03) The reliability problem that made Moritz switch
(15:40) The folder structure that runs Moritz's entire OS
(20:03) The memory loop that makes Claude Code remember everything
(23:47) CLI vs. MCP vs. API: which to pick and why it matters
(26:02) Skills walkthrough: automated grocery runs and video uploads
(29:03) Local vs. remote routines (and when to use each)
(31:51) The full content pipeline from idea to posted video
(41:43) Tips to start building your first personal OS
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Top 10 takeaways I learned from this episode
Build your Claude Code personal OS in 4 layers. Moritz runs his email, content pipeline, and grocery shopping through his Claude Code OS. It has 4 layers:
Folder (with memory): A set of files Claude Code reads at the start of every session so it knows who you are, what tools it has, and what it remembers from past chats.
Tools: The APIs, MCPs, and CLIs that let Claude complete tasks like send emails, post to social, search Google Drive, and more.
Skills: Detailed instructions for tasks that Moritz does over and over like “upload my video files” or “refill my grocery cart.”
Routines: Scheduled jobs that run proactively.
Let's walk through how to set up each layer below:
Set up your folder structure first. Get this right before setting up tools or skills so that your OS stays organized. Critical files include: