nats-chat is a chat which requires nothing but nats for communication and uses cryptography to identify user, your address is generated using double hash algorithm (SHA256 + MD5) on your public key. The app consists of two parts: CLI and daemon, CLI handles key management and daemon is responsible for any network activity.
You should have running nats-server, which you have access to
docker run --rm -d --name nats -p 4444:4444 nats:alpine3.18 -p 4444 -D --trace
Clients should generate and exchange their addresses using other open channels and
then execute run command with appropriate arguments
nats-chat-daemon&
nats-chat-cli generate
# ...addresses exchange
nats-chat-cli address
# <sender_address>
nats-chat-cli online --nats-url "nats://0.0.0.0:4444"
nats-chat-cli createchat --recepient <recepient_address>
nats-chat-cli openchat