See Changelog.md for changes.
* adapt data interface for new sdist dependency graph format
* change wording in readme
* wheel support + concept providers
* overlay support WIP
* overlay support
* extras support for nixpkgs
* machnix as overrides
* granular provider settings + custom autoPatchelfHook
* improve overlay generator, remove prefer_new
* unify nixpkgs src
* update interface, bump version and examples
* fixes and updated docs
