I settled on https://textbelt.com/ https://textbelt.com/ since it was cheap, a curl one-liner to use and didn't require me to install something new on my phone.

I settled on https://textbelt.com/ https://textbelt.com/ since it was cheap, a curl one-liner to use and didn't require me to install something new on my phone. % long-running-job.sh ; sms "the job is done"