Imports github.com/99designs/httpsignatures-go github.com/drone/drone-go/plugin/webhook github.com/go-chi/chi/v5 github.com/go-chi/chi/v5/middleware github.com/jordan-wright/email github.com/kelseyhightower/envconfig Standard library imports bytes context embed encoding/json fmt html/template log net net/http net/smtp net/textproto os os/signal strings text/template time