[cantsingh]

I used to have a Twilio phone number hooked up to a Lambda function so that people could press the buzzer box at the front of my apartment building and it would automatically send back the required DTMF to unlock it, then text me to let me know someone had been buzzed in.

Other than that, just some bespoke Tasker automations and some hotkeys on my computer. Reading through this thread makes me feel like a rookie, though.