Assess project architecture

## Description
It'd be worthwhile to at some point assess how well this project is architected.  Consider exploring the following tools:
* [Dep Tree](https://github.com/gabotechs/dep-tree)
* [import-linter](https://www.piglei.com/articles/en-6-ways-to-improve-the-arch-of-you-py-project/)
* [modguard](https://github.com/Never-Over/modguard)