Can't get this (or any other custom render feature) working #2

Describe the bug
Not sure what's going on here, but this seems to be the most complete example in this space, my AddRenderPasses method is never called in any ScriptableRenderFeature I add, I've added them to the URP pipeline as render features, I've set up the volumes etc...

No idea why unity isn't actually calling into the effect but as far as I can see it's in the ScriptableRenderFeature subclass. I like the way this project is set up so I'd love to get it working and add my own shaders to it.

Any help much appreciated.