Imports github.com/disintegration/imaging github.com/golang/freetype github.com/golang/freetype/truetype periph.io/x/periph/conn/gpio/gpioreg periph.io/x/periph/conn/spi/spireg periph.io/x/periph/experimental/devices/inky periph.io/x/periph/host Standard library imports encoding/json errors flag fmt image image/color image/draw image/png io/ioutil log net/http os path time