Back in 2017 I mentioned that the API I have been using for my Roku Home Media Server project was going to be replaced by SceneGraph and that I would need to rewrite things. That day finally arrived when my newer Roku players updated themselves to v11.5.0 and HMS quit loading.
SceneGraph has lots of documentation, and lots of examples . Most of them are either too simplistic to be useful, or too complex to untangle for someone new to the framework, but experienced with the previous API.
Home Media Server is a Roku application for streaming video from a http server. I started the project in 2009 after Roku released the SDK for their devices . Originally it was a server and a client, but I rewrote it in 2010 as just a client so that the only external dependency was a http server that could handle partial file requests.
In 2013 I rewrote the client to use the gridScreen layout which lets you display more content at the same time and makes it easier to split things into categories.