I'm working on my passion project that incorporates some features like this with some differences: * not only contacts but also tasks, projects, notes and cale

I'm working on my passion project that incorporates some features like this with some differences: * not only contacts but also tasks, projects, notes and calendars * not local, instead it uses a self hosted rest-like api wrapping a database centralizing all state * embedded MQTT broker that publishes CRUD events so you can hook into any events to script automations * cli client that works similar to this so commands can be chained in shell pipelines * there's also a tui client (mutt-inspired) and I might do web/mobile later It's far from finished, but if you're interested send me an email (link in profile) and I'll keep you up to date.