How to install the «Yandex.Kassa» and «QIWI Wallet» payment extensions?

What i need to do to install this extenison on my site ? will you install for me ? i need yandex kassa and qiwi wallet for my magento 2 store on custom theme

«Yandex.Kassa» and «QIWI Wallet» payment extensions are not released yet.
For now there only «Robokassa» payment extension is ready for Russian market.
«Yandex.Kassa» and «QIWI Wallet» will be released when I will want so (now I have more profitable projects), or when somebody orders them on the terms of my custom payment gateway integration service.

The «QIWI Wallet» payment extension is released.

The «Yandex.Kassa» payment extension is released too: Yandex.Kassa integration