Its already under construction.

Quote Simple: That’s cool, so in the future, this can work entirely as a front-end javascript linked to Nostr? Then the site itself could be on Arweave or IPFS.

Quote OpenMonero: The decentralized exchange will offer a selection of various escrow providers, arbitrators, and instances for users to choose from. Users will not be required to create accounts with each individual provider. All escrow providers utilize the same backend code, and to engage with a specific provider, one merely needs to be aware of its domain (no additional configuration or setup is required).

Trusted escrow providers will be hardcoded into the code, while untrusted providers will be accessible through an integrated distributed hash table (DHT) network. The utilization of a DHT is crucial, as hardcoded directories are inherently susceptible to censorship. Furthermore, this approach surpasses that of a federated network, since defederation is neither necessary nor possible; the reputation system in place effectively mitigates spam from the outset.