Where is Tornado Cash located?

I'm curious to know, where exactly is Tornado Cash located? I understand it's a decentralized protocol that facilitates anonymous transactions on the blockchain, but I'm wondering if there's a physical location or headquarters associated with its development and operation. Is it a project that's run by a team of developers in a specific country, or is it more of a global, decentralized effort? It would be great to gain some clarity on this matter.