I only started working on it on Saturday, so nothing very useful yet. It's at
https://www.askhuxley.com/ and I want to focus on making something really useful instead of on monetization, so you'll have to bring your own API key, but I'd love it if you wanted to bounce some ideas and use cases off each other. I know what things are useful to me, but I don't know what's useful to other people, and I'd love to get new ideas.
Feel free to email me (email in profile) if you'd like to try it out. Right now it only does weather and Google Calendar, but adding new integrations is easy and the interesting thing is the fact that it can learn from you, and will behave like a PA would, while also being proactive and messaging you without you having to message it first.
I did make a prototype a while ago, which I integrated with a hardware device, and that was extremely useful, being able to do things by me teaching it. For example, it only had access to my calendar and its memories, but I told it (in chat) to check for and notify me of conflicts before adding an event, and told it the usual times of some events, so then I'd say "I'm playing D&D on Thursday" and it would reply with "you can't, you have an appointment at 8PM". This sounds simple for a human, but the LLM had to already know what time D&D was, that it's something I can't do during appointments, and that I wanted to be informed of conflicts, which are all things that I didn't have to program, but just instructed the LLM to do.