Sure, happy to put something here as a comment.
Alice registers `alice.dntls` and Bob registers `bob.dntls` on the DNTLS network. During the registration process, they generate PQ key pairs that are registered along with the name. Alice's and Bob's name are hashed before being stored on the network. Bob knows Alice's name, so he can perform the necessary hash computation to look up Alice's public key material on the network. Likewise, Alice can do the same for Bob.
Bob wants to send a file to Alice. Bob takes his name key and signs the document with it and sends it to Alice. Alice looks up Bob's public key material on the network and verifies the signature.
Bob now stands up a new website, but he only wants Alice to access it. He sets up a standard HTTP server but slightly modifies it to be "DNTLS native." He does this by requiring mTLS on incoming TLS connections. The connecting party must identify themselves with a signed certificate. Each name has what we call a "name record" that allows publishing arbitrary metadata signed by the name key. Bob publishes a standard "HTTP" record in his own name record that points to the IP address. Alice now goes to connect to Bob's website. She opens her "special" browser and types in bob's name. The special browser looks up Bob's name record, finds the published IP address, and attempts an mTLS connection. Bob's server is configured to _only_ allow connections from Alice. Since Alice signed her TLS connection with her own name, the connection is allowed, while every other is rejected.
Alice now wants to communicate with Bob's agent. Bob publishes a subname called `agent.bob.dntls`. In that subname's record he publishes an A2A packet that contains the information for connecting to his agent. But, like the website, the agent is listening on a TLS connection that rejects anyone except Alice. She uses an A2A tool to initiate a connection using her name key and is allowed to make a mutually secured connection to Bob's agent.
Bob wants to connect to a VM he purchased that runs the website. He configures SSH with his name key as one of the recognized users. His SSH connection simply leverages the name key to authenticate him to the machine. But he shares the machine with another person and wants to share a secret with them. So he creates a SOPS encrypted file with his name and this other person's names as the only recipients. They both securely access the secret using their respective name keys.
I'll leave it there, but hopefully that's descriptive enough.