Not heroku installation problems

I think this might be pointed out that if you install on your own server and want to push there from your local machine you have to use a bare git repo on the server. But toto needs a working directory obviously. And you cannot push to a repo with a working directory. So if you use your own server you will have to make all your editing directly on the server or you'll have to #git reset --hard; git checkout -f on the server after any push.

I wonder how does heroko work around this issue? Maybe I can utilize their solution on my own server?