Answer by Ilya Prudnikov for How can I set up Encrypted SNI on my own servers?

The previous very detailed answer inspired to reuse tls-tris to build tiny esni reverse proxy, that actually can terminate TLS 1.3 with ESNI and forward plain traffic to backend of your choice. This allows to easy use ESNI without any modification of web server you are using. The source code and detailed instruction can be found here: esni-rev-proxy