What you are learning
Budgetwire is keeping cloud spend and API usage inside known limits. The teaching focus is Billing and quotas (billing accounts, budgets, alerts, quotas, cost controls).
Work in order. Early parts set vocabulary and environment; later parts assume the earlier checkpoints.
How to use these lessons
Read the goal, open the matching GitHub folder, complete the lab or exercises, then return for the explanation. If a command fails, check you are in the numbered folder first.
Parts in order
Each chapter below is one checkpoint in this track.