Hi,

First of all – thank you for forking and continuing to maintain this project!

Twelve Data is very expensive when it comes to markets outside the US, making it hard to use.

Could you add an option to integrate a custom data source or include additional providers (for example, Yahoo Finance) so users can track non-US markets without such high costs?

P.S. The data also seems to be inaccurate – according to Sure my portfolio shows a large loss, while in reality it’s mostly gains.

Thanks!