Is it possible to download Ubuntu/Debian packages from specific repository mirror for local build?

I’ve definitely enabled arm architecture, the problem is that packages are not available (unresolvable) in openSUSE OBS instance. See https://build.opensuse.org/package/show/home:axzxc1236:xrdp/xrdp https://build.opensuse.org/package/show/home:axzxc1236/quiterss