But what if the code is on my laptop? Alongside the tools needed to work with it
Case in point, I have a Rust project with a target/ directory with about 10GB. Compile times from scratch takes about 10 minutes. (I do not love this)
With this mobile app I need to upload the code to the cloud, right? Or does OpenAI expects me to compile huge projects on my phone?
Not sure about how it works with Codex now, but with Claude you can just start a terminal session of claude code with your code checked out locally on your computer, and then enable remote control which lets you control that session from your phone.
So basically, it is like you are typing on your terminal on your computer from your phone.
I tried Codex web. It kinda sucks and OpenAI doesn't seem to be promoting it? Look elsewhere if you want a Linux VM in the cloud. (I quite like exe.dev and they do have good mobile support.)
The processes you're controlling are on your computer, similarly to Claude remote control.
No, the phone connects to your local device. This isn't "codex web" on mobile. Basically you work through your desktop on your phone. So to be clear, there are security risks (you can wipe your entire desktop from your phone).