DomoticsExplorer: Honestly, I'd recommend Node-RED over Smartthings for your case. Note that the tradeoff.

7 hours ago · profile

Side note: you should understand how Zigbee routing works for it matters for performance.

See also

• Quick question: how do I set up automations without creating loops?
• What's the most reliable doorbell you have used?
• Does Zigbee integrate well with Matter for 2025?