Here's a tentative outline:
Section 1: What is a Compiler?
Explain what compilers are on a high level. Include lexical analysis, syntax analysis, and code generation.
Section 2: Let's Play With the AST Explorer
Create exercises in JS, HTML, and CSS for developers to complete.
Section 3: Compilers In The Wild
Break down what happens when you run a TS compiling command -- doesn't need to be compiled to be executable since browsers have a JS parser. TypeScript, however, as a superset of JS, needs to be compiled to JS!