@dangillmor As others have said, I don't think pinning or even viewing other instances' local timelines is possible in the standard web view. But you do see this feature popping up in more and more clients, most notably iOS' @[email protected]. It's a pretty popular feature, so you'll likely see it migrated to other clients (both Android and iOS) and then to alternate web views, like Mastodeck. I find it very useful in IceCubes, for sure.