Looking at the Common Alert Protocol (https://docs.oasis-open.org/emergency/cap/v1.2/CAP-v1.2-os.html), for our Service Alerts (https://github.com/cityofcapetown/service-alerts-connector/) - reasonably sure I could do a translation, and just offer it as another output form.
Anyone have any experience, good or bad? It's main proponent has been #Google, and looks like its been soft deprecated