## For 1.0 release
 - Tests
 - Branding
 - Replace &str with strings
 - Named parameters for Tokens
 - Function application
 - Commands
 - Arrows to move cursor


## Etc

# General
 - Documentation
 - CLI Options
 - Compile to WASM => webapp

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

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

# Prompt
 - Live syntax/output