Five minutes before you touch anything.
Every lesson is a short loop. You read one idea, watch it happen in the panel next to you, answer two questions, then get links to the real product. Same loop every time:
A couple of lessons open with a tour of the page instead. This one does.
Maxi is the voice you'll hear along the way. Maxi is a character we wrote for the course - no real person behind it, no wallet, no bag to defend. When a number on screen doesn't make sense, hit Hint and Maxi explains that specific number, not the textbook version of it.
Why none of this can cost you money
Everything runs on Solana Devnet. That's a public test network running the same software as mainnet, with none of the money. The SOL you spend comes out of a faucet - no market for it, nothing to sell, nobody cares if you burn it.
So you'll connect a real , sign real , and watch them land on-chain. You'll also do it wrong at some point. The cost of wrong here is the ten seconds you spend reading the error.
Simply put: the mechanics are identical to mainnet, and the bill isn't there.
By the end of Tier 1 you'll be able to open any wallet's history and tell what happened, decide whether a token is safe to touch, follow where a went, and recognise the pattern before a scam drains a fresh wallet.