This is the command used to create the self-signed cert:
openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 \
-subj "/C=DK/L=Copenhagen/O=kmcd/CN=local.kmcd.dev" \
-keyout cert.key -out cert.crt
go run server-single/main.go
go run server-multi/main.go
go run client-http/main.go
go run client-connect/main.go