Imports github.com/shirou/gopsutil/cpu github.com/shirou/gopsutil/disk github.com/shirou/gopsutil/mem github.com/tarm/serial golang.org/x/image/font golang.org/x/image/font/basicfont golang.org/x/image/math/fixed Standard library imports bytes flag fmt image image/color image/draw image/png io io/ioutil log os path/filepath strings time