In. Out. Done.
A minimal macOS menu bar app that helps you focus on one thing at a time.
[ English | 中文 ]
| ✨ Try it Online (Web OS) | |
|---|---|
Experience the core flow on a simulated macOS desktop in your browser. |
|
| Focus Flow | Daily Rituals |
Type one thing, enter the flow. |
One-click start for your habits. |
| Parking Lot | History |
Distracted? Park it for later. |
Fresh start daily. Yesterday is mist. |
I built ZenDoOne with a simple philosophy: Less Noise, More Focus.
In a world where every AI product fights for your attention, I wanted to create something that does the opposite. The goal is simple: Input your task, focus on it, and get out.
An efficiency tool shouldn't be a place you linger. It should be a launchpad for your actual work.
This project started as a tribute to One Thing by Sindre Sorhus. I deeply admire his philosophy, but wanted to tweak the workflow to fit my specific needs.
Here's the plot twist: I'm not a Mac developer.
My background is in AI Infrastructure, Cloud Native, and GPU Virtualization. I had zero experience with macOS app development (Swift/SwiftUI).
But we live in an amazing time. With the help of LLMs, I built this entire native macOS application from scratch. I've been "dogfooding" (using) ZenDoOne throughout this journey. Every feature iteration was built while staying focused using the app itself. That completion animation is a genuine dopamine hit that keeps me going.
As an independent developer building this as a free, open-source passion project, and with no plans to develop further applications, I decided not to pay the $99/year Apple Developer fee just to digitally sign this single app.
This results in macOS Gatekeeper flagging the app as "Unidentified" or "Damaged" upon installation. It's not a bug, it's just a paywall.
- Download the latest version from Releases.
- Unzip and move
ZenDoOne.appto your Applications folder. - Open it. You will likely see a warning.
- Fix: Go to System Settings -> Privacy & Security, scroll down, and click "Allow Anyway".
Is it safe? Yes.
ZenDoOne is 100% Open Source and Completely Offline. It makes zero network requests.
If you have any concerns (which is healthy!), I encourage you to let an AI (like ChatGPT or DeepWiki) audit the source code. I believe in total transparency and simple, honest tools.
MIT