Tiny SSE will function as a basic Server-Sent Events pub/sub server without using any of the Lua functionality.
tinysse
INFO tinysse: Listening on 127.0.0.1:1983
curl 127.0.0.1:1983/sse
: ok
curl -X POST -d data="Hello, World" 127.0.0.1:1983/sse
{"queued":1,"subscribers":1}
data: Hello, World