How to Use the Pack on a Server or With Other Resource Packs
The pack is client-side and cosmetic, so it works on any server, including vanilla and modded ones, as long as your client loads it. The main thing to manage is how it stacks with your other packs.
Server use
You do not need the server owner to install anything. Join the server, open Resource Packs, and enable 3D Default locally. Other players will not see the 3D models unless they also enable the pack, and your gameplay is unaffected either way. Server-side anti-cheat and redstone behavior are untouched because no mechanics change.
Stacking with other packs
Resource packs apply top-down, so the pack highest in the Selected list wins for any file both packs edit. If you use a themed pack that also changes rails or bookshelves, decide which look you prefer and order them accordingly. Put 3D Default above a pack when you want its 3D models to show; put it below when you want the other pack's versions.
Combining with mods
Because the pack only replaces vanilla model and texture files, it coexists with content mods that add their own blocks and items. Those modded models are not covered by this pack and keep their own appearance. If a mod also retextures vanilla rails or bookshelves, treat it like any other conflicting pack and adjust load order.