I have a TailsOS Related Question: Can I run a virtual box inside tails? I would like to use VirtualBox to run some emulators on it. I tried to google it but it's always talking about tails inside a VM which is not what I am looking for.
so i went for the deb9 stretch you recomendet as i try to install it prompts
sudo dpkg -i '/home/amnesia/Persistent/virtualbox-5.1_5.1.28-117968~Ubuntu~xenial_amd64.deb' [sudo] password for amnesia: (Reading database ... 137687 files and directories currently installed.) Preparing to unpack .../virtualbox-5.1_5.1.28-117968~Ubuntu~xenial_amd64.deb ... Unpacking virtualbox-5.1 (5.1.28-117968~Ubuntu~xenial) over (5.1.28-117968~Ubuntu~xenial) ... dpkg: dependency problems prevent configuration of virtualbox-5.1: virtualbox-5.1 depends on libpng12-0 (>= 1.2.13-4); however: Package libpng12-0 is not installed. virtualbox-5.1 depends on libqt5opengl5 (>= 5.0.2) | libqt5opengl5-gles (>= 5.0.2); however: Package libqt5opengl5 is not installed. Package libqt5opengl5-gles is not installed. virtualbox-5.1 depends on libqt5x11extras5 (>= 5.1.0); however: Package libqt5x11extras5 is not installed. virtualbox-5.1 depends on libssl1.0.0 (>= 1.0.0); however: Package libssl1.0.0 is not installed. virtualbox-5.1 depends on libvpx3 (>= 1.5.0); however: Package libvpx3 is not installed. dpkg: error processing package virtualbox-5.1 (--install): dependency problems - leaving unconfigured Processing triggers for systemd (232-25+deb9u1) ... Processing triggers for hicolor-icon-theme (0.15-1) ... Processing triggers for shared-mime-info (1.8-1) ... Processing triggers for gnome-menus (3.13.3-9) ... Processing triggers for desktop-file-utils (0.23-1.0tails1) ... Processing triggers for mime-support (3.60) ... Errors were encountered while processing: virtualbox-5.1