BeginnerSoftware Fundamentals

Read Any Codebase

Open a 50k-line codebase you've never seen — or your own AI-generated one — and confidently locate, explain and safely change a specific feature.

◷ ~14h to complete▤ 27 steps✎ every step is graded, not read✦ 1155 XP◆ 5 badges

◇Exercise 1You are not going to read itStart ⇵Exercise 2Entry points: where execution actually starts25 XP ⇅Exercise 3Two directions: from the URL down, from the string up30 XP ƒExercise 4Your frames and everyone else's50 XP ▤Exercise 5Ask the repo a question in SQL40 XP ⚔Exercise 6Chapter test: orienting80 XP