GadgetbridgeMqtt for TrueNAS Scale

This is a Gadgetbridge MQTT bridge for TrueNAS Scale, which allows you to connect your Gadgetbridge database to Home Assistant or other MQTT clients.

Setup

• copy content compose.yaml your TrueNAS Scale Apps -> Discover Apps -> ⋮ -> Install via YAML
• edit
  • mount point for your Gadgetbridge database
  • your Timezone
  • environment variables for your MQTT broker
• start the app

Editing Sensors

• add new mqtt sensor around here main.py#L90
• add new function for new sensor around here main.py#L208

Automated Gadgetbridge DB Shrink & Sync

1. Install Apps (F-Droid)

• Termux (Terminal)
• Termux:Boot (Auto-start scripts)

2. Configure Apps

• Gadgetbridge: Settings → Auto Export → Location: /sdcard/Documents/GB_Raw
• Nextcloud: Auto Upload → Custom Folder → Local: /sdcard/Documents/GB_Sync → Remote: /Backup/Gadgetbridge
• Termux:Boot: Open app once to initialize.

3. Termux Setup (Run these commands)

# 1. Setup storage & install python
termux-setup-storage
pkg update -y && pkg install -y python wget

# 2. Create script directories
mkdir -p ~/scripts ~/.termux/boot

# 3. Download python script
wget -O ~/scripts/shrinkdb.py https://git.olli.info/Oliver/GadgetbridgeMqtt/raw/branch/main/termux_setup/shrinkdb.py

# 4. Create autostart launcher
printf '#!/data/data/com.termux/files/usr/bin/sh\ntermux-wake-lock\npython ~/scripts/shrinkdb.py &\n' > ~/.termux/boot/start_gb

4. Finish

Reboot your phone. The script will now run automatically, shrinking DBs from GB_Raw and placing clean versions in GB_Sync for Nextcloud.