It's still a relatively fat client that needs to get loaded at page load (handling end-to-end encryption + client-side SQL with sql.js), so there isn't too much I can do. But I think the site loads at a much more reasonable speed now.
I also noticed the site isn't working in webview and is exceptionally slow there, looking into that.
That's called that a subscription service or subscription box. Sometimes it's called a membership.
Dollar Shave Club popularized the concept back in 2012, although it's been around for decades for books then CDs, I guess DSC re-popularized it. Graze is another example.
Here are some existing services in the UK that do that with Jewelry:
It's got nothing to do with software. I guess you're trying to say something like "The Jewelry subscription box designed by AI that updates every month to send you new, unique designs".
It should be based off all three platforms. But to start off you should create a standalone AI assistant, then refactor to each of the 'already available platforms based on feedback.' The latter should be easier to scratch if you have your own backend to digest and reply via api layer from.