I've never installed the ChatGPT app on my Mac until today. I ran the app, signed in, and I see the same.
reply% ls ~/.cache/codex-runtimes/codex-primary-runtime/dependencies/native/libreoffice-headless
libreoffice manifest.json
On a Windows installation I see this:
reply PS C:\Users\user> ls C:\Users\user\.cache\codex-runtimes\codex-primary-runtime\dependencies\native\
Mode LastWriteTime Length Name
---- ------------- ------ ----
d----- 8/27/2026 10:09 AM git
d----- 6/16/2026 9:18 PM jxrlib
d----- 8/26/2026 7:37 PM libheif
d----- 6/17/2026 5:32 AM poppler
d----- 8/27/2026 10:09 AM powershell
Is this perhaps because the aim is to read Office documents and there are (maybe, I don't know for sure) default components within Windows that can do that?
replyCodex always try Libreoffice first on my computer.
replyNotably: this did not exist after I installed the app, it existed after I ran the app and there was the long startup screen. Presumably, and I'm not sure I'm interested enough to redo it all and find out, that long startup screen involves the default skills plugins setting up their environment and one of those pulls it as a general app requirement.
replyI also saw this present after first run on macOS but not Windows.
[flagged]
replyI have had the Codex/ChatGPT app installed for a few months, and can confirm that there's a 422.9 MB file named LibreOfficeDev.app in the above path.
replyMore notably, I don't use Computer Use or any of the fancy features, just Codex for agentic coding.