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