# fs_type module The buffering architecture (Phase 2) selects different output sinks for local vs network filesystems: NFS gets the adaptive `WritebackFile` machinery on Linux; local disks get `LocalFileSink` and rely on the kernel's default writeback policy. This module provides the construction-site primitive that picks which one. Per the per-OS file-split convention, the actual `statfs` call lives in the matching platform file (`linux.rs`, `macos.rs`, `windows.rs`, `other.rs`); this `mod.rs` exposes only the cross-platform enum and the `detect` entry point.