unattended upgrades on gnu/linux

I run this site on a VPS and as for vpn I use OpenVPN that passes my traffic through a VPS. I am too lazy to periodically access one of these servers and manually run sudo apt update && sudo apt upgrade. I found these commands and config files that will periodically update the system and also reboot at a specific time if required for important kernel updates.

# install unattended-upgrades package along with some utilities
$ sudo apt install unattended-upgrades apt-listchanges bsd-mailx

# enable security updates
$ sudo dpkg-reconfigure -plow unattended-upgrades

Edit the /etc/apt/apt.conf.d/50unattended-upgrades file and add/modify the following lines:

Unattended-Upgrade::Mail "yourmail@here.com" # for update notifications

Unattended-Upgrade::Automatic-Reboot "true";  # setup up automatic reboot
Unattended-Upgrade::Remove-Unused-Kernel-Packages "true";
Unattended-Upgrade::Remove-Unused-Dependencies "true";
Unattended-Upgrade::Automatic-Reboot-Time "05:00"; # specify reboot time

You can test if it works by running sudo unattended-upgrades --dry-run.