I just read about 0install,
http://0install.net/. Seems like it tries to become a way of installing software locally as a user, which is something very desirable in some situations. Has anybody tried this yet? Especially, such a thing could be a nice addition to clbuild / quicklisp, in the sense that additional binary requirements could be made exportable to such a system, at least at first sight, but of course I did not try it yet.