Make .env optional

src/config.rs

@@ -16,12 +16,18 @@ pub enum ConfigError {
     #[error("Parse error {0}")]
     InvalidPort(#[from] ParseIntError),
     #[error("Unknown error: #{0}")]
-    Unknown(anyhow::Error),
+    Unknown(#[from] anyhow::Error),
 }
 
 impl Config {
     pub fn new() -> Result<Self, ConfigError> {
-        dotenvy::dotenv().map_err(|err| ConfigError::Unknown(err.into()))?;
+        // dotenvy::dotenv().map_err(|err| ConfigError::Unknown(err.into()))?;
+        match dotenvy::dotenv() {
+            Ok(_) => Ok(()),
+            Err(err) => {
+                if err.not_found() { Ok(()) } else { Err(ConfigError::Unknown(err.into())) }
+            }
+        }?; //.map_err(|err| ConfigError::Unknown(err.into()))?;
         let server_secret = env::var("SERVER_SECRET").map(SecretString::from).map_err(|_| ConfigError::MissingServerSecret)?;
         let state_dir = env::var("STATE_DIR").map_or_else(|_| PathBuf::from("/tmp/"), PathBuf::from);
         let port = match env::var("PORT") {