Sysadmin, what's that?
For some silly reason most sys admins are Windows guys here.
Pi's speak Linux, mostly, it is agreat big divide, what version of Windows is it running?
What is an user?
These gadget get turned on, do stuff get turned off or they sit there collecting data that one day may get looked at and used.
One also has manually added packages
Adding them manually sucks, it can take hours, days to get things running again.
I don't have systems to admin, yet.
Got rack, got boxes and hubs, got Gitlab and Jenkins, just not got time to learn this.
Application Lifetime Management, maybe one day, month, year, it is on the list
Lots of gadgets, each one is different. no single Raspbian image was ever the same.
Raspbian evolved, my coding evolved, old gadgets running old OS and libs. Library on SD card gets corrupted, rebuild or what?
I may get around to learning Linux but Raspbian is big and each gadget only uses or needs a tiny bit of it.
Not many even used the same language. I tried lots to test them all out in my search for "The One".
Got this things here called firewalls, I even got asked in the early days what virus checker are you using?
"No virus checker! You are not getting near our networks"
Have you tried to get a headless Pi signing on via a GUI login to get Internet access past the firewall and who is paying for that account?
Pi's running DoS from inside the firewall
Raspbian is Linux, it has zero day exploits, PiCore runs kernel and busybox, also exploitable
I can read the source for Ultibo, the image is small, 3MB that's only a few novels worth.
With Intel and AMD Ryzen cpu's running minix and threadX and ???? what can you trust?
Just thinking ahead, none of my gadgets can move, yet.
And what is wrong with morse?
I knew a Russian programmer who used a single GPIO and beeper as his debug output.
I'm dancing on Rainbows.
Raspberries are not Apples or Oranges