With Snips being acquired by Sonos, there’s room for a new player to come in. I’ve been thinking about this and it seems other people have been previously. Here’s a blog post by Joop Beris about the very same thing
In the end of that post Joop suggests Mycroft.AI could get in on the action and develop a Nextcloud assistant. It’d make sense as the assistant could run locally and access all your private data without any privacy issues since it’s locally hosted. I find myself using my google home to take voice notes when falling asleep and while they’re not of upmost secrecy, I’d prefer if they lived in my home and not on google’s servers.