Use native Bitcoin as collateral in Ethereum DeFi without bridges, wrapped custody, or pooled BTC. The open Testnet docs are the main entry point for creating a vault, borrowing on Aave v4, and redeeming back to Bitcoin.
Start with the open Testnet documentation for Babylon Trustless Bitcoin Vault and the Aave v4 lending integration.
Lock signet BTC on Bitcoin, activate the vault, and have vaultBTC supplied automatically as collateral.
Walk through peg-in, borrow, repay, withdraw, and Bitcoin redemption end to end.