Good work kevin, added webapp and server

Cargo.toml

@@ -1,2 +1,2 @@
 [workspace]
-members = ["ui_demo", "mjoy_core"]
+members = ["ui_demo", "mjoy_core", "command_server"]

command_server/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "command_sever"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde_json = "1.0.116"
+
+[lib]
+name = "command_server"
+path = "src/lib.rs"
+
+[[example]]
+name = "helloworld"
+path = "examples/helloworld.rs"
+

command_server/examples/helloworld.rs

@@ -0,0 +1,24 @@
+use command_server;
+use std::sync::mpsc::channel;
+use std::thread;
+
+fn main() {
+    // Create a channel for sending commands to the library
+    let (sender, receiver) = channel();
+
+    // Start the library's server in a separate thread
+    thread::spawn(move || {
+        if let Err(err) = command_server::field_commands_forever(sender) {
+            eprintln!("Error in library: {:?}", err);
+        }
+    });
+
+    // Main thread can now handle received commands or perform other tasks
+    // For demonstration, let's just print received commands
+    for received_cmd in receiver {
+        println!("Received command: {:?}", received_cmd);
+        // Implement your logic to handle the received commands here
+    }
+
+    // Optionally, you can perform cleanup or other tasks before exiting
+}