Hi Guix, Here is a little package from the Flatpak folks which is also useful in a guix shell container. This lets you run, for example, xdg-open in the container and it will open on the host side. So let's say you come across a URL, you can just use xdg-open from this package so it will open in the host's web browser, rather than trying in the container. This relies on having portals on the host side, like xdg-desktop-portal-gtk. Here is a simple test example: --8<---------------cut here---------------start------------->8--- guix shell -NC flatpak-xdg-utils --preserve='^DBUS_SESSION_BUS_ADDRESS$' -- xdg-open "" --8<---------------cut here---------------end--------------->8--- which will open Guix's website on the host side. I've checked it works, the license (some files LGPL2+ other LGPL2.1+), linted, and styled. I adjusted the description from upstream slightly to indicate it is not just for Flatpak sandboxes. Thanks! John