Retired. Hobbies include trying different Linux versions on amd, intel and arm computers. I have a 4 gb raspberry pi 4b in an Argon one case, an 8 gb 4b in a Cana kit aluminum case and a pi 400 . All are booting from ssd connecting to usb 3.0 ports on the pi’s. I worked for 40 + years as an engineer on medical instrumentation.