BoomPanel 3 is new kind of admin panel, with the big difference, where frontend is made with Vue.js, and sourcemod/SRCDS server runs as backend for the panel. For communication to server panel is using websockets.
Not only that the panel is lightning fast, because the connection directly from client to server, it is also model/plugin based. So in short, any Sourcemod plugin developer easly is able to create their own page in this panel, as far as they understand simple html and javascript. The panel can be used to configure that particular plugin or to display any kind of data from the server almost real time. It fully supports Sourcemod admin flags, meaning you can have multiple admins in panel with different permissions.
As the application of the panel is made with PWA, you can install it really easly:
All of the installation for the plugin is written in github, just follow that one