I have iCal (.ics) files from a few different sources (work, client, personal, social) and systems (Google, Outlook 365, Fastmail).
I'd like to aggregate them all into a single feed for my colleagues, friends, and family to consume. Ideally, with fine-grained access and visibility controls.
All Google Apps support was able to suggest was to convert all my clients and friends to Google Calendar, and then it'd be easy 🙄
Does a tool (commercial / free / Free) exist to solve this problem? I don't want to reinvent the wheel if I don't have to. Googling has turned up nothing so far.