The reality is that most things don't actually modify files, even text editors tend to save a new version and rename over the top.
it is essentially copy-on-write exposed to the user level. the only issue is that this breaks hard links, so tools that rely on that are going to break. but yes, custom code should be easy to adapt.
it is essentially copy-on-write exposed to the user level. the only issue is that this breaks hard links, so tools that rely on that are going to break. but yes, custom code should be easy to adapt.