feat: add dotenvy

.env.example

@@ -0,0 +1,2 @@
+# WebSocket URL
+WEBSOCKET_URL="ws://localhost:8888/ws/computer"

.gitignore

@@ -1 +1,2 @@
 /target
+.env

Cargo.lock

@@ -5,3 +5,12 @@ version = 3
 [[package]]
 name = "computer"
 version = "0.1.0"
+dependencies = [
+ "dotenvy",
+]
+
+[[package]]
+name = "dotenvy"
+version = "0.15.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"

Cargo.toml

@@ -4,3 +4,4 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+dotenvy = "0.15.7"

src/main.rs

@@ -1,3 +1,9 @@
-fn main() {
+use std::error::Error;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    dotenvy::dotenv()?;
+
     println!("Hello, world!");
+
+    Ok(())
 }