yigitsalar [1] filed an orphan request for ryujinx [2]: Package Maintainer xiota is still not yet solved a build error because of changed mirror, which 2 users already wrote a comment about it. Also, it is hard to understand the content of the PKGBUILD, since probably xiota divided into 3 files. That's why I request this, if I was able to solve it myself, I could.
[1] https://aur.archlinux.org/account/yigitsalar/ [2] https://aur.archlinux.org/pkgbase/ryujinx/