Are you seriously suggesting using system-wide installations and modifications to run development environments? Even if all else fails, you should at least have

Are you seriously suggesting using system-wide installations and modifications to run development environments? Even if all else fails, you should at least have a chroot for that. Or if you don't know how that works, virtual machines have been a thing for decades. Vagrant exists. Containers exist, heck, even in a user-friendly button-click interface with Docker...