https://github.com/docker-library/docs/blob/aaf4aad3145f4c3ee03dc1bb150e402624ee92a3/yourls/README.md?plain=1#L96 The Yourls docker image readme links to https://yourls.org/#Config for more information regarding configurable environment variables. However, this link just leads to the Yourls homepage. I'm guessing the link should direct to https://yourls.org/docs/guide/essentials/configuration.