MQTTMaster: Honestly, I'd go with Home Assistant over Smartthings for your case. Just remember the learning curve.

9 hours ago · profile

What I did — I use Docker Compose for portability for redundancy. Performs admirably.

See also

• What's the most reliable doorbell you have used?
• Best practices for securing a Z-Wave setup?
• Anyone else having problems with automations not triggering?