Fun fact: The Windows BSOD colour was as easy as adding a couple of lines to a .INI file for a long time. Then, as they tend to do, they made it more difficult, but it was still possible. Third party tools were written to do the work.
Very recent MS Windows I have no idea about. My search-fu is failing me.
Anyway, my point is that the “two lines in a config file” method would be nice.
Knowing systemd though, it’ll be “send some kind of message into a /proc pseudo-file”, or a sub-sub-sub-command of one of the many systemd* commands which ultimately does the same thing.
Fun fact: The Windows BSOD colour was as easy as adding a couple of lines to a .INI file for a long time. Then, as they tend to do, they made it more difficult, but it was still possible. Third party tools were written to do the work.
Very recent MS Windows I have no idea about. My search-fu is failing me.
Anyway, my point is that the “two lines in a config file” method would be nice.
Knowing systemd though, it’ll be “send some kind of message into a
/procpseudo-file”, or a sub-sub-sub-command of one of the manysystemd*commands which ultimately does the same thing.