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- I Built 3 Apps in 3 Days.
I Built 3 Apps in 3 Days.
Here's How.
Hey fellow vibe coder,
I gave myself a challenge during the weekend: ship three real, working products in three days, using nothing but Claude Max and VS Code.
Vibe coding at full speed.
I made a video about it. And I want to walk you through what I built.
The Rules
Three days. Three apps. All built inside VS Code with Claude as the co-pilot. From a Flask web platform, to an open-source analytics tool, to my very first native Mac app written in Swift.
These are real, deployed, usable products. Let me show you.
App 1 — FlaskVibe
You heard about this one in the last edition. The opinionated Flask + PostgreSQL + Vanilla JS platform I built to prove that simplicity wins. If you missed it, go read that issue first — it sets the context for everything I'm building right now.
App 2 — NanoAnalytics
The analytics tool running behind FlaskVibe is something I also built myself and I've now open-sourced it.
NanoAnalytics is:
• Cookieless. No tracking cookies. No cookie banner. GDPR-friendly by design.
• Built with Flask. Of course it is.
• Free to deploy. Railway, Render, or any platform that runs a Flask app. One click and you're done.
If you're running any kind of website and you're tired of Google Analytics bloat or paying for privacy-respecting alternatives, this is your answer.
👉 Deploy it free → github.com/callmefredcom/NanoAnalytics
App 3 — TypeClerk
This is the one that surprised even me.
TypeClerk is a native Mac app — written in Swift — that lives in your menu bar and lets you create financial documents as easily as taking notes.
Here's the idea: you type the way you think.
Brand new website 10000
SEO campaign 5000
Discount -5%
VAT 20%
TypeClerk does the rest. It computes totals, converts currencies on the fly (32 currencies supported), handles discounts and VAT, and generates a clean PDF invoice or a PNG you can paste straight into Discord, Notion, or an email.
No spreadsheet. No invoicing software subscription. Just type.
What I love about it:
• Computable notes. Every line with a value gets calculated instantly. Lines without values become section headers automatically.
• Multi-currency. Mix pounds, euros, dollars in the same document. Conversions happen in real time at today's rate.
• Invoice mode. Name your document "Invoice" and a PDF button appears. Add your company details once in settings and they appear on every invoice you generate.
• Folder totals. Group documents into folders and see the combined total — converted into multiple currencies simultaneously.
• It lives in your menu bar. One click and it's open. One click and it's gone.
The landing page at typeclerk.com was itself built by Claude, reusing the design system from the native app. The agent knew the product so well it could explain it better than most copywriters could. That moment genuinely blew me away.
👉 Download TypeClerk free → typeclerk.com
What This Actually Proves
Three days. Three shipped products. A Flask web platform, an open-source analytics tool, and a Swift native Mac app.
I'd never written a line of Swift before this week.
The barrier between "I have an idea" and "I have a working product" has collapsed. What matters now is clarity of thought: knowing what you want to build, breaking it into pieces, and iterating fast.
The video walks through all three apps in detail, including a live demo of TypeClerk that shows exactly how the computable notes and invoicing work.
Watch it here → https://youtu.be/Hw_u3xTNNEA
The AI Coding Club / Flask Vibe Discord is where the real conversation is happening. Come tell me:
• What you're building
• Whether you'd use TypeClerk or NanoAnalytics
• What you want me to tackle next
Until next time, keep shipping!
Frederick