systemd is a ''System and Service Manager'' which has enough different settings and configuration from SystemV(SysV) which was used on all XELK BSPs up to [[Axel_Embedded_Linux_Kit_(XELK)#XELK_3.0.0|XELK 3.0.0]].
{{ImportantMessage|text=This application note '''is not a complete systemd user's guide''' but collects some useful hints that can be used for getting familiar with systemd. There is a plenty of documentation and User's Guide available for systemd, but some simple examples - that can be found here below - may simplify the systemd approach for beginners.}}
== Architecture ==