Any multichain DEX?

Title says it all: is there any actual decentralized exchange where I can swap BTC for ETH and vice versa without touching a centralized platform?

Everything I’ve found so far is stuck on its own chain. Uniswap only works for ERC-20s, Jupiter is locked to Solana, and most “cross-chain swap” sites either fake decentralization or redirect you back to some custodial service. I’m trying to fully ditch CEXs, but the one missing piece is a proper DEX that supports Bitcoin.

To be clear, I’m not looking for peer-to-peer trading, no meetups, no escrow chats, just a simple trustless swap. Send BTC, receive ETH. Does a real solution like that exist yet, or are we still stuck waiting on someone to build it?