Access Codex from another machine: Remote, SSH, or migration?
"Use Codex from another machine" sounds like one problem. It is actually four different workflows, and choosing the wrong one can create duplicated state or a broken destination. 1. Control the current host from a phone Use Codex Remote when Codex should keep running on the original computer and you want to supervise it from another authorized device. The host must remain awake, online, and…
Accessing Codex from another machine presents four distinct workflows, each with its own unique considerations. The first approach is using Codex Remote, which allows control of the current host from a phone, enabling supervision of Codex running on the original computer from another authorized device. This method requires the host to remain awake, online, and running Codex.
The second option is using Remote SSH, which is suitable when a laptop needs to operate against a project and execution environment on a different Mac. In this case, the remote Mac retains ownership of the files, tools, and runtime, establishing a remote access scenario rather than a copy or synchronization.
The third workflow involves migrating from an old Mac to a new one. This process is not simply a matter of signing into the same ChatGPT account, as it does not transfer all local Codex state and workspace files to the cloud. A complete migration may require preserving various elements such as local conversations, project associations, settings, memories, automations, custom skills, selected repositories, and the relationships between the Codex state and workspaces on the destination machine.
Codex Migrate, built by the author, facilitates this Mac-to-Mac migration by inventorying the selected scope, transferring data over SSH, staging and validating incoming data, verifying a rollback backup on the destination, and preserving the new Mac's existing Codex login and installation identity.
Lastly, the fourth option entails actively working on both computers simultaneously, which constitutes synchronization rather than migration. This scenario necessitates conflict handling for Git state, uncommitted files, sessions, paths, and machine-local configuration. Merely mirroring all of ~/.codex is not a reliable substitute for synchronization.
In summary, the appropriate workflow for accessing Codex from another machine depends on specific requirements. Codex Remote enables remote control, Remote SSH facilitates remote access to projects, migration requires a careful process using tools like Codex Migrate, and synchronization demands conflict resolution mechanisms.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
