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Re:John Carmack: Best Programming Setup and IDE – Lex Fridma... by kalleboo on Saturday August 13, 2022 @05:48AM (#32448316)
I use an IntelliJ IDE and open folders all the time and it's never created any cruft to clean up. I think that only shows up if you start making project configurations (like file watchers to run preprocessors for web languages)
Re:John Carmack: Best Programming Setup and IDE – Lex Fridma... by evol262 on Saturday August 13, 2022 @07:11AM (#32448736)
It still makes a .idea folder to add to .gitignore or clean up, just as .vscode makes a .vscode folder.

I don't see this as a lot different than MacOS spraying .DS_STORE files everywhere. It's not a big deal to add to .gitignore, but it does leave a fingerprint. It's just that tries to determine reasonable defaults if the path doesn't exist instead of Netbeans/Eclipse/whatever forcing you to pick them with a wizard if you want any of the "real" features to work.