I just pushed OI Calendar 0.7 out. See https://cal.openintents.org
This version has
- a new UI (Bootstrap 4)
- reminders (experimental) with integration with Spring Role (or other profile services) through enriched notifications that arrive in OI Chat (or other chat services)
- a link for donations (hint, hint ;-), know issues, etc.
- support to take your calendar from Google Takeout
- an interface for other apps to add events or calendars via web intents (https://github.com/friedger/oi-calendar#app-developers)
- support for conferencing via matrix/OI Chat
- a section with all your files on gaia
This was a community effort mainly through gitcoin.co.