Over the past four months, the author has been transforming their Mac experience using Codex, OpenAI’s intelligent agent tool built into ChatGPT. What began as a distant curiosity evolved into a key part of their daily workflow—one that feels more like personal creation and less like just adapting to new software.
From ChatGPT Fan to Codex Builder
The journey started with comfortable familiarity: the author was using ChatGPT regularly but hadn’t delved into Codex initially. Then in April, the Computer Use plugin arrived—this allows Codex to open apps, click, type, even work autonomously in the background while they continue using the Mac. While there’s a strong lineage from familiar tools like Workflow and Shortcuts, Codex represents something more: a platform that lets users build specifically for themselves rather than just drop in others’ creations. It pushed the author to start taking ownership of their digital world.
Codex today feels essential. The author describes their early usage of Codex in May, when they created a project called “Flow” to track app updates and releases—a project built with custom features like a hand-drawn icon and specific layout preferences. They also set up carefully measured column views for social media and RSS feed readers and fine-tuned visual elements to reflect both utility and joy. These personal touches, which previously required heavy trade-offs with off-the-shelf tools, now come effortlessly with Codex.
Small Projects, Big Impact
Flow was the first big turning point—delivered not just as utility but as a complete personal environment. It reached a stage where the author could see an actual output: their published work facilitated by the tool, rather than just time spent building it. But that’s just one of many smaller, meaningful wins.
More hobby projects followed. “Better Remote” turns the Mac into a kind of interface for tvOS, delivering a smoother experience with its upcoming update. Then there’s “Better Battery,” born from annoyance with macOS 27 Golden Gate’s hard-to-read battery percentage display—so they made a custom widget that other users can download. And for sharing these tools and updates, ChatGPT Sites with a custom domain now functions as their public face. Along with newly added shared site management tools, it shows Codex not just as a personal builder but also as a means to publish and share those builds.
These innovations are still early touchstones in a longer path. The author makes clear that Codex isn’t just about bursts of creation—it’s about habit. The way these tools allow building environments tuned to individual preferences—from layout to color accents to interaction—turns the Mac from a traditional workspace into something more intimate and responsive.
What this means going forward: Codex marks more than a feature rollout; it may reshape how we interact with computers. By lowering the barrier for people who aren’t traditional coders, it encourages personal computing that adapts itself to users. The balance between power and trust will be crucial. As Codex evolves, what to watch next are tools for sharing, collaboration, and how these personal creations might influence broader app ecosystems. If we’re witnessing just the beginning, it already feels like a promising direction.
