1. Introduction
2. Getting Started
3. 1. Install
   2. Development
   3. Playground
   4. TUI
   5. Example
4. Reference
5. 1. CLI
   2. Values and Types
   3. Conditionals and Comparisons
   4. 1. Conditionals
      2. Comparisons
   5. Syntax
   6. 1. Pipe Operator
      2. ? Operator
      3. Environment variables
      4. Def Expression
      5. Fn Expression
      6. Let Expression
      7. If Expression
      8. While Expression
      9. Until Expression
      10. Foreach Expression
      11. Comments
      12. Include
      13. Self
      14. Nodes
      15. String Interpolation
   7. Builtin selectors and functions
   8. 1. Builtin functions
      2. Builtin selectors