Proton should clearly warn users about its destructive behaviour on first install

[jackcasey]

Proton takes over both package management and user preferences. This means on initial installation your whole atom configuration is changed with no recourse to revert.

Proton should have a very clear warning about this on first install, with an option to back out and instructions on how to backup your current configuration and/or run proton in a new atom home folder.

PS: I feel like this issues has probably been mentioned before but I couldn't find anything about it. Sorry if it's a duplicate issue.

[t9md]

My situation is

1. got report issue for vim-mode-plus+proton
2. Try to reproduce issue by installing proton(I have no idea that proton replace all config/pkgs I locally installed).
3. Investigation done now uninstall proton and noticed I've lost all pre-proton-installed configuration, pkgs. Now recovering manually.

Just installing proton pkg breaks locally installed config/pkgs is very surprising.
I wanted be get BIG WARNING.

I think my above situation is typical when user report some-pkg+proton issue to some-pkg project.