Not an option if you need the latest XCode.

I mean, do you need the latest xcode? Apps build for older macos still work with new macos. Same with iphone.

I need it to build the recent Expo ( https://expo.dev/ ) versions, and to target newer iOS features. I tried to stick with Sequoia for as long as I could, but I had to upgrade to macOS 27 last month :(

Fortunately, I found that there is now a way to reduce the stupid corner radius ("defaults write -g NSConvolutionOverride1 -float 8") and to remove the floating sidebars ("defaults write -g NSSplitViewItemSidebarDefaultsToFloatingAppearance -bool false").