The futuristic concept of smart locks, once a staple of science fiction, is becoming a reality in decentralized finance (DeFi). Smart contracts are now capable of controlling real-world assets such as cars and apartments, allowing for automatic enforcement of financial agreements. This development aligns with Nick Szabo's 1997 vision of smart locks, as blockchain technology advances and traditional finance increasingly adopts tokenization. Early efforts by companies like Slock.it have paved the way for these innovations, which promise to revolutionize collateral systems. This technology is particularly appealing to global investors in high-interest markets, such as Turkey, where smart contract-enabled systems could offer new opportunities for financial engagement.