Would be great to have a one-click registration process with a cosmic link.
I mean, without having to give the mail, but with the option to set it later.
This way, it would be easier to redirect users to your website for them to see their trade rank and so on; I mean, without boring them with additional registration process.
I don't ask users their mail so it would be weird I ask them for registration on external platform, but I'd like to somehow give them the option register into nucleo.fi easily.
Another interesting thing to investigate would be providing iframable widgets so we can include content from your website in ours, like top10 trader or i.e. put your last 10 trades on your page.
Both idea would feet nicely together, providing websites the possibility to register their users into nucleo.fi and to show some stats without having to code it all, and providing you with new users and more visibility. Looks mutually beneficial to me.