Systemd Looks to Replace sudo with run0

Systemd, a crucial init system in Linux, is introducing a new tool called "run0" to potentially replace sudo. Run0, part of the upcoming systemd 256 release, aims to provide similar functionality to sudo but without being a SUID binary. It works by querying the service manager to execute commands under the user's UID, allocating a new PTY for data transfer. Creator Lennart Poettering highlights that run0 is designed to be more secure than traditional sudo alternatives like "doas" by reducing the attack surface. Additionally, run0 will visually indicate elevated user rights by changing the background color. Despite potential challenges in adoption due to its longer command name, run0 is positioned as a viable alternative to sudo. The first release candidate for systemd 256, featuring run0, is already available on GitHub, with the final release expected to include a stable run0 experience and other improvements.