{ntfy} is now on CRAN #rstats
https://CRAN.R-project.org/package=ntfy
The README on the GitHub repo contains the most thorough walkthrough
https://github.com/jonocarroll/ntfy
tl;dr send messages to a channel on-demand or when some code completes, including emoji and plot outputs. No sign-up, no fees, no subscription, and minimal dependencies.
ntfy: Lightweight Wrapper to the 'ntfy.sh' Service
The 'ntfy' (pronounce: notify) service is a simple HTTP-based pub-sub notification service. It allows you to send notifications to your phone or desktop via scripts from any computer, entirely without signup, cost or setup. It's also open source if you want to run your own. Visit <<a href="https://ntfy.sh" target="_top">https://ntfy.sh</a>> for more details.