[尝试] 在 Arch linux 上安装 flatpak 失败:
$ sudo pacman -S flatpak
resolving dependencies...
:: There are 3 providers available for xdg-desktop-portal-impl:
:: Repository extra
1) xdg-desktop-portal-gtk 2) xdg-desktop-portal-kde
:: Repository community
3) xdg-desktop-portal-wlr
Enter a number (default=1): 1
looking for conflicting packages...
Packages (11) appstream-glib-0.7.18-1 gcab-1.4-1 geoclue-2.5.7-3 geocode-glib-3.26.2-1
gnome-desktop-1:40.0-1 gnome-keyring-1:40.0-1 libstemmer-0+713-2 ostree-2021.1-1
xdg-desktop-portal-1.8.0-1 xdg-desktop-portal-gtk-1.8.0-1 flatpak-1.10.2-1
Total Download Size: 0.63 MiB
Total Installed Size: 29.29 MiB
:: Proceed with installation? [Y/n] Y
:: Retrieving packages...
error: failed retrieving file 'ostree-2021.1-1-x86_64.pkg.tar.zst' from mirror.rackspace.com : The requested URL returned error: 404
error: failed retrieving file 'ostree-2021.1-1-x86_64.pkg.tar.zst' from mirrors.evowise.com : The requested URL returned error: 404
error: failed retrieving file 'ostree-2021.1-1-x86_64.pkg.tar.zst' from mirror.rackspace.com : The requested URL returned error: 404
error: failed retrieving file 'ostree-2021.1-1-x86_64.pkg.tar.zst' from mirror.rackspace.com : The requested URL returned error: 404
warning: failed to retrieve some files
error: failed to commit transaction (failed to retrieve some files)
Errors occurred, no packages were upgraded.
在 Linux 上下载和安装 flatpack 的正确方法是什么?