net/listen

    cfunction
    src/core/net.c on line 820, column 1

    (net/listen host port &opt cntype no-reuse)

    Creates a server. Returns a new stream that is neither readable nor 
    writeable. Use `net/accept` or `net/accept-loop` to handle 
    connections and start the server. The `cntype` parameter specifies 
    the connection type, either `:stream` (usually TCP), or `:datagram` 
    (usually UDP). If not specified, the default is `:stream`. The 
    `host` and `port` arguments are the same as in `net/address`. The 
    last boolean parameter `no-reuse` disables the use of 
    `SO_REUSEADDR` and `SO_REUSEPORT` when creating a server on some 
    operating systems.