liblet 0.2.0

# \<PR name\>

Closes #

## Purpose

*Describe the problem or feature.*

## Approach

*How does this change address the problem or implement the feature?*

*For a list of todos to check before merging:*

- [ ] *Use github checklists. When solved, check the box and explain the answer*

## Learning

*Describe the research stage.*

*Links to blog posts, patterns, libraries or addons used to solve this problem.*