cross-posted from: https://lemmy.dbzer0.com/post/50693956
Transcript
A post by [object Object] (@[email protected]) saying: courtesy of @[email protected], Proton is now the only privacy vendor I know of that vibe codes its apps: In the single most damning thing I can say about Proton in 2025, the Proton GitHub repository has a “cursorrules” file. They’re vibe-coding their public systems. Much secure! I am once again begging anyone who will listen to get off of Proton as soon as reasonably possible, and to avoid their new (terrible) apps in any case. https://circumstances.run/@davidgerard/114961415946154957
It has a reply by the author saying: in an unsurprising update for those familiar with how Proton operates, they silently rewrote their monorepo’s history to purge .cursor and hide that they were vibe coding: https://github.com/ProtonMail/WebClients/tree/2a5e2ad4db0c84f39050bf2353c944a96d38e07f
given the utter lack of communication from Proton on this, I can only guess they’ve extracted .cursor into an external repository and continue to use it out of sight of the public
Non programmer here: This is the first time I’ve seen a cursor file but I genuinely like how it reads. It’s like a business analyst wrote a coding requirements doc. I’d be thrilled if my staff asked 4-6 thoughtful questions when given a goal with an open ended approach.
For which LLM are cursor files used?
Cursor is just an IDE (integrated development environment), you can set it up to use all sorts of LLMs either directly through Cursor, or with your own API keys for the sources.
This file content just goes into the initial context to help the LLM act how you want.