Imports rsc.io/qr/coding rsc.io/qr/web/resize rsc.io/qr rsc.io/rsc/qr/coding rsc.io/qr/gf256 github.com/golang/freetype rsc.io/rsc/qr rsc.io/rsc/appfs/fs Standard library imports image/draw image/png image/color html/template image/gif image/jpeg crypto/md5 bytes encoding/base64 encoding/json fmt image io math/rand net/http net/url os sort strconv strings time