launchd plists for Icecast, Darkice, Jack Audio, and Github's Play

com.darkice.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.darkice</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <false/>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/darkice</string>
        <string>-c</string>
        <string>/Users/dzello/.darkice.cfg</string>
    </array>
  </dict>
</plist>

com.github.play.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.github.play</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <false/>
    <key>ProgramArguments</key>
    <array>
        <string>sh</string>
        <string>-c</string>
        <string>/Users/dzello/Library/LaunchAgents/com.github.play.sh</string>
    </array>
  </dict>
</plist>

com.github.play.sh

#!/bin/bash
export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"
cd $HOME/workspace/play
bundle exec rake start

com.icecast.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.icecast</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <false/>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/icecast</string>
        <string>-c</string>
        <string>/Users/dzello/.icecast.xml</string>
    </array>
  </dict>
</plist>

com.jackaudio.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>Label</key>
    <string>com.jackaudio.jackdmp</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <false/>
    <key>ProgramArguments</key>
    <array>
        <string>/usr/local/bin/jackdmp</string>
        <string>-d</string>
        <string>coreaudio</string>
    </array>
  </dict>
</plist>

darkice.cfg

# sample DarkIce configuration file, edit for your needs before using
# see the darkice.cfg man page for details

# this section describes general aspects of the live streaming session
[general]
duration        = 0        # duration of encoding, in seconds. 0 means forever
bufferSecs      = 2         # size of internal slip buffer, in seconds
reconnect       = yes       # reconnect to the server(s) if disconnected

# this section describes the audio input that will be streamed
[input]
device          = jack_auto # OSS DSP soundcard device for the audio input  
                            # the string ’jack’, to  have  an  unconnected Jack port, 
                            # or ’jack_auto’  to  automatically  make Jack connect to the first source.
sampleRate      = 44100     # sample rate in Hz. try 11025, 22050 or 44100
bitsPerSample   = 16        # bits per sample. try 16
channel         = 2         # channels. 1 = mono, 2 = stereo

# this section describes a streaming connection to an IceCast server
# there may be up to 8 of these sections, named [icecast-0] ... [icecast-7]
# these can be mixed with [icecast2-x] and [shoutcast-x] sections
# [icecast-0]
# bitrateMode     = cbr       # constant bit rate
# bitrate         = 96        # bitrate of the mp3 stream sent to the server
# quality         = 0.8       # encoding quality
# server          = yp.yourserver.com
#                             # host name of the server
# port            = 8000      # port of the IceCast server, usually 8000
# password        = hackme    # source password to the IceCast server
# mountPoint      = sample96  # mount point of this stream on the IceCast server
# name            = DarkIce trial
#                             # name of the stream
# description     = This is only a trial
#                             # description of the stream
# url             = http://www.yourserver.com
#                             # URL related to the stream
# genre           = my own    # genre of the stream
# public          = yes       # advertise this stream?

# this section describes a streaming connection to an IceCast2 server
# there may be up to 8 of these sections, named [icecast2-0] ... [icecast2-7]
# these can be mixed with [icecast-x] and [shoutcast-x] sections
[icecast2-0]
bitrateMode     = abr       # average bit rate
format          = mp3       # vorbis    # format of the stream: ogg vorbis
bitrate         = 192       # bitrate of the stream sent to the server
server          = 127.0.0.1
                            # host name of the server
port            = 8000      # port of the IceCast2 server, usually 8000
password        = nihilist  # source password to the IceCast2 server
mountPoint      = spin   # mount point of this stream on the IceCast2 server
name            = Spin Party # name of the stream
description     = Featuring DJ Dizzy and the Disoriented Mafia.
url             = http://stream.teethie.com/spin
genre           = dubspin  # genre of the stream
public          = no       # advertise this stream?

# this section describes a streaming connection to a ShoutCast server
# there may be up to 8 of these sections, named [shoutcast-0] ... [shoutcast-7]
# these can be mixed with [icecast-x] and [icecast2-x] sections
#  [shoutcast-0]
#  bitrateMode     = vbr       # variable bit rate mode
#  quality         = 0.5       # encoding quality
#  server          = 127.0.0.1
#                              # host name of the server
#  port            = 8001      # source port of the ShoutCast server, usually 8001
#  password        = hackme    # source password to the ShoutCast server
#  name            = DarkIce trial
#                              # name of the stream
#  url             = http://www.yourserver.com
#                              # URL related to the stream
#  genre           = my own    # genre of the stream
#  public          = yes       # advertise this stream?
#  irc             = irc.yourserver.com
#                              # IRC info related to the stream
#  aim             = aim here  # AIM info related to the stream
#  icq             = I see you too
#                              # ICQ info related to the stream
#  

icecast.xml

<icecast>
    <!-- location and admin are two arbitrary strings that are e.g. visible
         on the server info page of the icecast web interface
         (server_version.xsl). -->
    <location>party.io</location>
    <admin>dzello@party.io</admin>

    <limits>
        <clients>100</clients>
        <sources>2</sources>
        <threadpool>5</threadpool>
        <queue-size>524288</queue-size>
        <client-timeout>30</client-timeout>
        <header-timeout>15</header-timeout>
        <source-timeout>10</source-timeout>
        <!-- If enabled, this will provide a burst of data when a client 
             first connects, thereby significantly reducing the startup 
             time for listeners that do substantial buffering. However,
             it also significantly increases latency between the source
             client and listening client.  For low-latency setups, you
             might want to disable this. -->
        <burst-on-connect>1</burst-on-connect>
        <!-- same as burst-on-connect, but this allows for being more
             specific on how much to burst. Most people won't need to
             change from the default 64k. Applies to all mountpoints  -->
        <burst-size>65535</burst-size>
    </limits>

    <authentication>
        <!-- Sources log in with username 'source' -->
        <source-password>nihilist</source-password>
        <!-- Relays log in username 'relay' -->
        <relay-password>nihilist</relay-password>

        <!-- Admin logs in with the username given below -->
        <admin-user>admin</admin-user>
        <admin-password>nihilist</admin-password>
    </authentication>

    <!-- set the mountpoint for a shoutcast source to use, the default if not
         specified is /stream but you can change it here if an alternative is
         wanted or an extension is required
    <shoutcast-mount>/live.nsv</shoutcast-mount>
    -->

    <!-- Uncomment this if you want directory listings -->
    <!--
    <directory>
        <yp-url-timeout>15</yp-url-timeout>
        <yp-url>http://dir.xiph.org/cgi-bin/yp-cgi</yp-url>
    </directory>
     -->

    <!-- This is the hostname other people will use to connect to your server.
    It affects mainly the urls generated by Icecast for playlists and yp
    listings. -->
    <hostname>stream.teethie.com</hostname>

    <!-- You may have multiple <listener> elements -->
    <listen-socket>
        <port>8000</port>
        <!-- <bind-address>127.0.0.1</bind-address> -->
        <!-- <shoutcast-mount>/stream</shoutcast-mount> -->
    </listen-socket>
    <!--
    <listen-socket>
        <port>8001</port>
    </listen-socket>
    -->

    <!--<master-server>127.0.0.1</master-server>-->
    <!--<master-server-port>8001</master-server-port>-->
    <!--<master-update-interval>120</master-update-interval>-->
    <!--<master-password>hackme</master-password>-->

    <!-- setting this makes all relays on-demand unless overridden, this is
         useful for master relays which do not have <relay> definitions here.
         The default is 0 -->
    <!--<relays-on-demand>1</relays-on-demand>-->

    <!--
    <relay>
        <server>127.0.0.1</server>
        <port>8001</port>
        <mount>/example.ogg</mount>
        <local-mount>/different.ogg</local-mount>
        <on-demand>0</on-demand>

        <relay-shoutcast-metadata>0</relay-shoutcast-metadata>
    </relay>
    -->

    <!-- Only define a <mount> section if you want to use advanced options,
         like alternative usernames or passwords
    <mount>
        <mount-name>/example-complex.ogg</mount-name>

        <username>othersource</username>
        <password>hackmemore</password>

        <max-listeners>1</max-listeners>
        <dump-file>/tmp/dump-example1.ogg</dump-file>
        <burst-size>65536</burst-size>
        <fallback-mount>/example2.ogg</fallback-mount>
        <fallback-override>1</fallback-override>
        <fallback-when-full>1</fallback-when-full>
        <intro>/example_intro.ogg</intro>
        <hidden>1</hidden>
        <no-yp>1</no-yp>
        <authentication type="htpasswd">
                <option name="filename" value="myauth"/>
                <option name="allow_duplicate_users" value="0"/>
        </authentication>
        <on-connect>/home/icecast/bin/stream-start</on-connect>
        <on-disconnect>/home/icecast/bin/stream-stop</on-disconnect>
    </mount>

    <mount>
        <mount-name>/auth_example.ogg</mount-name>
        <authentication type="url">
            <option name="mount_add"       value="http://myauthserver.net/notify_mount.php"/>
            <option name="mount_remove"    value="http://myauthserver.net/notify_mount.php"/>
            <option name="listener_add"    value="http://myauthserver.net/notify_listener.php"/>
            <option name="listener_remove" value="http://myauthserver.net/notify_listener.php"/>
        </authentication>
    </mount>

    -->

    <fileserve>1</fileserve>

    <paths>
		<!-- basedir is only used if chroot is enabled -->
        <basedir>/usr/local/Cellar/icecast/2.3.3/share/icecast</basedir>

        <!-- Note that if <chroot> is turned on below, these paths must both
             be relative to the new root, not the original root -->
        <logdir>/usr/local/Cellar/icecast/2.3.3/var/log/icecast</logdir>
        <webroot>/usr/local/Cellar/icecast/2.3.3/share/icecast/web</webroot>
        <adminroot>/usr/local/Cellar/icecast/2.3.3/share/icecast/admin</adminroot>
        <!-- <pidfile>/usr/local/Cellar/icecast/2.3.3/share/icecast/icecast.pid</pidfile> -->

        <!-- Aliases: treat requests for 'source' path as being for 'dest' path
             May be made specific to a port or bound address using the "port"
             and "bind-address" attributes.
          -->
        <!--
        <alias source="/foo" destination="/bar"/>
          -->
        <!-- Aliases: can also be used for simple redirections as well,
             this example will redirect all requests for http://server:port/ to
             the status page
          -->
        <alias source="/" destination="/status.xsl"/>
    </paths>

    <logging>
        <accesslog>access.log</accesslog>
        <errorlog>error.log</errorlog>
        <!-- <playlistlog>playlist.log</playlistlog> -->
      	<loglevel>3</loglevel> <!-- 4 Debug, 3 Info, 2 Warn, 1 Error -->
      	<logsize>10000</logsize> <!-- Max size of a logfile -->
        <!-- If logarchive is enabled (1), then when logsize is reached
             the logfile will be moved to [error|access|playlist].log.DATESTAMP,
             otherwise it will be moved to [error|access|playlist].log.old.
             Default is non-archive mode (i.e. overwrite)
        -->
        <!-- <logarchive>1</logarchive> -->
    </logging>

    <security>
        <!-- <chroot>0</chroot> -->
        <!--
        <changeowner>
            <user>nobody</user>
            <group>nogroup</group>
        </changeowner>
        -->
    </security>
</icecast>

bump the icecast version number

...
<logdir>/usr/local/Cellar/icecast/2.4.2/var/log/icecast</logdir>
<webroot>/usr/local/Cellar/icecast/2.4.2/share/icecast/web</webroot>
<adminroot>/usr/local/Cellar/icecast/2.4.2/share/icecast/admin</adminroot>
...

https://gist.github.com/dmpanch/30408f71491f06352a73aec7775a50b7

some updates for sierra