I've been working on Chroncal for the past weeks, an open source TUI/CLI with iCalendar (RFC 5545) support and CalDAV sync, using SQLite to store the data.

My main goal is to make it easy for LLMs to auto-discover the CLI commands and access the database, while providing a nice TUI for the user (and I also found it paired very well with Omarchy, so, I also made a plugin to integrate in on Quickshell: https://github.com/DouglasdeMoura/chroncal-bar).

I'd love some feeback, specially to find bugs and missing features you find important.