Server implemented. Linux client implemented.

furumi-common/build.rs

@@ -0,0 +1,12 @@
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    println!("cargo:rerun-if-changed=proto/virtualfs.proto");
+    unsafe {
+        std::env::set_var("PROTOC", protobuf_src::protoc());
+    }
+    
+    tonic_build::configure()
+        .build_server(true)
+        .build_client(true)
+        .compile_protos(&["proto/virtualfs.proto"], &["proto"])?;
+    Ok(())
+}