The app is the front face

By the end you'll have a map of every system Ridgeline runs, who owns it, how data moves between them, and where it's most likely to break.

This is the idea the whole course is built on, and your first day at Ridgeline.

You won't write any code in this module. You'll look: read what the company says it runs, compare it with what's really there, and draw it. It's the most important habit in the course, so it comes first.

You'll need: any AI chat (ChatGPT, Claude, Gemini, all fine), a spreadsheet app (Google Sheets, Excel or Numbers), and three small files you'll download in step 2. No installing, no starter kit.