# General
 - Documentation
 - Tests
 - CLI Options
 - Branding
 - Compile to WASM => webapp
 - Replace &str with strings
 - Named parameters for Tokens

# Internals
 - Non-recursive treeify
 - Print any expression
 - Copy expression, print with result

# Features
 - Function application
 - Variable definitions
 - Function definitions
 - Rational datatype
 - Units
 - Dice
 - Derivatives
 - Mini CAS

# Prompt
 - Arrows to move cursor
 - Syntax errors are broken
 - Live syntax/output
 - Commands