Some additional repos to consider:
ja-resa-go — Golang backend for crucialHawg/ja-resa-web. FullCalendar event source feed from CalDAV server
dolanor/caldav-go — clone from taviti/caldav-go that disappeared
radicale_exporter — Simple Prometheus exporter for the Radicale CalDAV/CardDAV server
Once a week...... I send out a list of most interesting Go libraries and apps.
Want to get it?