Monorepo for Aesthetic.Computer
aesthetic.computer
feat(silo/native): add MediaMTX streaming relay on silo
Every ac-native device can now broadcast to silo.aesthetic.computer.
MediaMTX relay accepts SRT push and serves RTMP/HLS for viewers.
- silo/stream/: MediaMTX config + deploy script
- stream.conf only needs CHANNEL=name to enable broadcasting
- Default SRT_LATENCY bumped to 120ms for internet (vs 40ms LAN)
- Viewers pull: rtmp://silo:1935/<channel> or HLS at :8888/<channel>
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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fedac/nixos/configuration.nix
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fedac/nixos/configuration.nix
···
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}
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'';
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# SRT streamer: pushes notepat framebuffer over WiFi to OBS on Windows,
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# which then forwards to TikTok Live.
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# SRT streamer: pushes notepat video + audio to silo.aesthetic.computer
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# via MediaMTX relay. Viewers pull RTMP/SRT/HLS from silo.
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#
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# Opt-in: only starts if /mnt/stream.conf exists on the USB config partition.
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# Create /mnt/stream.conf with:
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# HOST=192.168.1.100 # Windows host IP on LAN
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# PORT=9000 # SRT port (OBS Media Source listens here)
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# BITRATE=6M # encode bitrate
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# FRAMERATE=60 # capture fps
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# SRT_LATENCY=40 # ms — lower = less latency, more fragile on bad WiFi
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# WIDTH=1280 # output width (scale from native)
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# HEIGHT=720 # output height
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# Minimal stream.conf (just enable with defaults):
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# CHANNEL=my-device
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#
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# Optional overrides in stream.conf:
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# HOST=silo.aesthetic.computer # relay server (default: silo)
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# PORT=9000 # SRT port
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# BITRATE=6M # encode bitrate
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# FRAMERATE=60 # capture fps
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# SRT_LATENCY=120 # ms — tuned for internet (not LAN)
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# WIDTH=1280 # output width
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# HEIGHT=720 # output height
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# AUDIO_BITRATE=128k # audio encode bitrate
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systemd.services.ac-native-stream = {
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description = "AC Native SRT streamer (to OBS → TikTok)";
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description = "AC Native SRT streamer (to silo relay)";
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after = [ "ac-native-kiosk.service" "mount-usb-config.service" ];
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wants = [ "ac-native-kiosk.service" ];
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wantedBy = [ "multi-user.target" ];
···
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serviceConfig = {
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Type = "simple";
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Restart = "on-failure";
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RestartSec = 3;
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RestartSec = 5;
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EnvironmentFile = "/mnt/stream.conf";
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ExecStartPre = pkgs.writeShellScript "ac-native-stream-wait" ''
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# Give the kiosk a moment to grab DRM master and start rendering
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sleep 2
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sleep 3
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for _ in $(seq 1 40); do
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ls /dev/dri/card* >/dev/null 2>&1 && break
···
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ExecStart = pkgs.writeShellScript "ac-native-stream" ''
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set -u
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HOST="''${HOST:?HOST not set in /mnt/stream.conf}"
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# Defaults tuned for internet relay via silo
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HOST="''${HOST:-silo.aesthetic.computer}"
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PORT="''${PORT:-9000}"
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CHANNEL="''${CHANNEL:-$(hostname)}"
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BITRATE="''${BITRATE:-6M}"
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FRAMERATE="''${FRAMERATE:-60}"
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SRT_LATENCY="''${SRT_LATENCY:-40}"
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SRT_LATENCY="''${SRT_LATENCY:-120}"
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WIDTH="''${WIDTH:-1280}"
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HEIGHT="''${HEIGHT:-720}"
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AUDIO_BITRATE="''${AUDIO_BITRATE:-128k}"
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CARD="$(ls /dev/dri/card* 2>/dev/null | head -n1)"
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[ -n "$CARD" ] || { echo "[stream] no DRM card"; exit 1; }
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URL="srt://''${HOST}:''${PORT}?mode=caller&latency=''${SRT_LATENCY}&pkt_size=1316&tlpktdrop=1"
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echo "[stream] capturing $CARD at ''${FRAMERATE}fps → $URL"
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STREAMID="publish:/''${CHANNEL}"
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URL="srt://''${HOST}:''${PORT}?mode=caller&streamid=''${STREAMID}&latency=''${SRT_LATENCY}&pkt_size=1316&tlpktdrop=1"
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echo "[stream] channel: ''${CHANNEL}"
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echo "[stream] capturing $CARD at ''${FRAMERATE}fps"
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echo "[stream] encode: h264_vaapi ''${WIDTH}x''${HEIGHT} @ ''${BITRATE}"
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AUDIO_BITRATE="''${AUDIO_BITRATE:-128k}"
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echo "[stream] → $URL"
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exec ${pkgs.ffmpeg-full}/bin/ffmpeg \
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-hide_banner -loglevel warning \
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silo/stream/deploy.fish
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silo/stream/deploy.fish
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#!/usr/bin/env fish
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# Deploy MediaMTX streaming relay to silo.aesthetic.computer
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#
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# Usage:
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# fish deploy.fish # Full deploy (download binary + config + systemd)
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# fish deploy.fish --config # Config-only update (no restart unless binary changed)
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set RED '\033[0;31m'
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set GREEN '\033[0;32m'
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set YELLOW '\033[1;33m'
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set NC '\033[0m'
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set SCRIPT_DIR (dirname (status --current-filename))
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set VAULT_DIR "$SCRIPT_DIR/../../aesthetic-computer-vault"
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set SSH_KEY "$VAULT_DIR/home/.ssh/id_rsa"
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set SILO_HOST "silo.aesthetic.computer"
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set SILO_USER "root"
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set REMOTE_DIR "/opt/mediamtx"
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set MEDIAMTX_VERSION "1.12.2"
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set MEDIAMTX_URL "https://github.com/bluenviron/mediamtx/releases/download/v$MEDIAMTX_VERSION/mediamtx_v{$MEDIAMTX_VERSION}_linux_amd64.tar.gz"
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set CONFIG_ONLY false
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if contains -- --config $argv
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set CONFIG_ONLY true
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end
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if not test -f $SSH_KEY
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echo -e "$RED x SSH key not found: $SSH_KEY$NC"
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exit 1
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end
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echo -e "$GREEN-> Testing SSH connection to $SILO_HOST...$NC"
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if not ssh -i $SSH_KEY -o StrictHostKeyChecking=no -o ConnectTimeout=10 $SILO_USER@$SILO_HOST "echo ok" &>/dev/null
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echo -e "$RED x Cannot connect to $SILO_HOST$NC"
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exit 1
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end
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# Upload config
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echo -e "$GREEN-> Uploading mediamtx.yml...$NC"
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ssh -i $SSH_KEY $SILO_USER@$SILO_HOST "mkdir -p $REMOTE_DIR"
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scp -i $SSH_KEY -o StrictHostKeyChecking=no \
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$SCRIPT_DIR/mediamtx.yml \
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$SILO_USER@$SILO_HOST:$REMOTE_DIR/
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if test $CONFIG_ONLY = true
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echo -e "$GREEN-> Config-only: reloading mediamtx...$NC"
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ssh -i $SSH_KEY $SILO_USER@$SILO_HOST "systemctl reload mediamtx 2>/dev/null || systemctl restart mediamtx"
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echo -e "$GREEN Done.$NC"
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exit 0
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end
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# Download + install binary on remote
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echo -e "$GREEN-> Installing MediaMTX v$MEDIAMTX_VERSION on $SILO_HOST...$NC"
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ssh -i $SSH_KEY $SILO_USER@$SILO_HOST "
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cd $REMOTE_DIR
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if test -f mediamtx && ./mediamtx --version 2>&1 | grep -q '$MEDIAMTX_VERSION'; then
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echo 'Already at v$MEDIAMTX_VERSION, skipping download'
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else
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curl -fsSL '$MEDIAMTX_URL' -o /tmp/mediamtx.tar.gz
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tar -xzf /tmp/mediamtx.tar.gz -C $REMOTE_DIR mediamtx
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rm /tmp/mediamtx.tar.gz
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chmod +x $REMOTE_DIR/mediamtx
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echo 'Installed MediaMTX v$MEDIAMTX_VERSION'
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fi
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"
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# Create systemd service
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echo -e "$GREEN-> Setting up systemd service...$NC"
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ssh -i $SSH_KEY $SILO_USER@$SILO_HOST "
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cat > /etc/systemd/system/mediamtx.service << 'UNIT'
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[Unit]
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Description=MediaMTX streaming relay (AC Native)
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After=network-online.target
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Wants=network-online.target
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[Service]
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Type=simple
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ExecStart=/opt/mediamtx/mediamtx /opt/mediamtx/mediamtx.yml
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ExecReload=/bin/kill -HUP \$MAINPID
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Restart=on-failure
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RestartSec=5
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LimitNOFILE=65536
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[Install]
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WantedBy=multi-user.target
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UNIT
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systemctl daemon-reload
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systemctl enable mediamtx
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systemctl restart mediamtx
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sleep 2
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systemctl is-active mediamtx
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"
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set STATUS $status
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if test $STATUS -eq 0
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echo -e "$GREEN MediaMTX is running.$NC"
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else
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echo -e "$RED x MediaMTX failed to start. Check logs:$NC"
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echo -e "$YELLOW ssh -i $SSH_KEY $SILO_USER@$SILO_HOST journalctl -u mediamtx -n 30$NC"
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exit 1
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end
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# Open firewall ports
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echo -e "$GREEN-> Opening firewall ports (9000/udp SRT, 1935/tcp RTMP, 8888/tcp HLS)...$NC"
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ssh -i $SSH_KEY $SILO_USER@$SILO_HOST "
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if command -v ufw >/dev/null 2>&1; then
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ufw allow 9000/udp comment 'MediaMTX SRT'
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ufw allow 1935/tcp comment 'MediaMTX RTMP'
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ufw allow 8888/tcp comment 'MediaMTX HLS'
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elif command -v firewall-cmd >/dev/null 2>&1; then
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firewall-cmd --permanent --add-port=9000/udp
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firewall-cmd --permanent --add-port=1935/tcp
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firewall-cmd --permanent --add-port=8888/tcp
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firewall-cmd --reload
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else
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echo 'No firewall tool found — ports may already be open'
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fi
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"
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echo ""
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echo -e "$GREEN Done. MediaMTX relay deployed to $SILO_HOST$NC"
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echo -e "$GREEN SRT push: srt://$SILO_HOST:9000?streamid=publish:/<channel>$NC"
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echo -e "$GREEN RTMP pull: rtmp://$SILO_HOST:1935/<channel>$NC"
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echo -e "$GREEN HLS view: http://$SILO_HOST:8888/<channel>$NC"
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silo/stream/mediamtx.yml
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silo/stream/mediamtx.yml
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# MediaMTX relay config for AC Native live streaming.
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# Accepts SRT push from ac-native devices, serves RTMP/HLS for viewers.
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#
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# Stream paths are channel names (e.g. /jeffrey, /notepat-001).
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# Push: srt://silo.aesthetic.computer:9000?streamid=publish:/<channel>
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# Pull: rtmp://silo.aesthetic.computer:1935/<channel>
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# srt://silo.aesthetic.computer:9000?streamid=read:/<channel>
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# HLS: http://silo.aesthetic.computer:8888/<channel>
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logLevel: info
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logDestinations: [stdout]
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# Allow any path — each ac-native device picks its own channel name.
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paths:
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all_others:
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# SRT: ac-native devices push here
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srt: yes
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srtAddress: :9000
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# RTMP: OBS / TikTok Studio pulls from here
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rtmp: yes
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rtmpAddress: :1935
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# HLS: browser preview
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hls: yes
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hlsAddress: :8888
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hlsAlwaysRemux: yes
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# Disable unused protocols
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rtsp: no
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webrtc: no
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srtpEnabled: no