* big rewrites / refactoring
* start using [poetry ](https://python-poetry.org) package management tool
* start using [rich](https://github.com/willmcgugan/rich) for beautiful cli output
* license switch from MPL 2 to MIT
* start unit testing w/ [pytest](https://docs.pytest.org/en/6.2.x/) (unfinished)
* general quality improvements