lightweight wanna get one for my house because I either waste a half pot of coffee after making it or I end up drinking the whole pot & shaking like Michael J Fox for hours after.
No, really not necessary tbh. Risk is low to nil. Things rarely just self install like you might get on windows, bc you need to mount the programs to install.
The way mac os works is each program is mounted, and does not have all those stupid directories like windows - same reason why you never need rarely need to defrag, and your computer doesn't get slower.