Alternative to plugin-reverse-proxy-ldap

While browsing available plugins, I found this plugin GitHub - kanboard/plugin-reverse-proxy-ldap: [NOT MAINTAINED] Authentication Plugin: Reverse-Proxy + LDAP and it is a very good fit for my use case (SSO server + LDAP user base).

Why is this plugin not maintained anymore? I couldn’t find an obvious replacement, is it simply a lack of interest form the developers for this particular use case? Are there known issues, or a better way to use a SSO server and a LDAP user base (for groups) at the same time?

The plugin seems to work fine on the latest version, so I’m just asking this question out of curiosity.