this doesn't quite work yet, as it's dependent on some behavioural changes from b-i-b upstream, however if this is built purely-manually it will probably work.
cc0. if you want to credit someone, credit [m1cha](https://github.com/m1cha) and the [ostree team](https://github.com/ostreedev). ideally do not mention me at all. i do not wish to be perceived herein.