How does stx work?

Could you please elaborate on the functionality of STX? I'm interested in understanding how it operates within the blockchain ecosystem. Could you provide a brief overview of its core mechanisms, including how it enables secure transactions and smart contract execution? Additionally, could you discuss any unique features or advantages that STX offers compared to other cryptocurrencies? I'm also curious about its potential use cases and how it might fit into the broader landscape of finance and cryptocurrency. Thank you for your insights!