Mint test dUSDT
One transaction: create your dUSDT account if it is missing, then the faucet's mint_to_user. The faucet program may cap an amount; the simulation shows it before you sign.
Devnet only
Mint dUSDT, Velocity's devnet test collateral, to your connected wallet. It has no value and exists only on Solana devnet. You also need a little devnet SOL for fees and account rent.
Wallet
One transaction: create your dUSDT account if it is missing, then the faucet's mint_to_user. The faucet program may cap an amount; the simulation shows it before you sign.
Next: register an agent or fund one.