diff --git a/src/error.rs b/src/error.rs
new file mode 100644
index 0000000..c2485fb
--- /dev/null
+++ b/src/error.rs
@@ -0,0 +1,39 @@
+use std::{fmt, io, string::FromUtf8Error};
+
+use ntex::{
+    http::StatusCode,
+    web::{HttpRequest, HttpResponse, WebResponseError},
+};
+
+#[derive(Debug)]
+pub struct ErrorWrapper(io::Error);
+
+impl From<io::Error> for ErrorWrapper {
+    #[inline]
+    fn from(value: io::Error) -> Self {
+        Self(value)
+    }
+}
+
+impl From<FromUtf8Error> for ErrorWrapper {
+    fn from(value: FromUtf8Error) -> Self {
+        Self(io::Error::new(io::ErrorKind::InvalidData, value))
+    }
+}
+
+impl fmt::Display for ErrorWrapper {
+    #[inline]
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.0.fmt(f)
+    }
+}
+
+impl WebResponseError for ErrorWrapper {
+    fn status_code(&self) -> StatusCode {
+        StatusCode::INTERNAL_SERVER_ERROR
+    }
+
+    fn error_response(&self, _: &HttpRequest) -> HttpResponse {
+        format!("{:?}", self.0).into()
+    }
+}
diff --git a/src/main.rs b/src/main.rs
index b59c9aa..fe101c3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,10 +2,17 @@ use std::sync::Arc;
 
 use ntex::{
     http::StatusCode,
-    web::{self, App, HttpServer, Responder, WebResponseError, types::State},
+    web::{self, App, HttpServer, Responder, types::State},
 };
 
-type Result<T> = core::result::Result<T, ErrorWrapper>;
+mod error;
+
+type Result<T> = core::result::Result<T, error::ErrorWrapper>;
+
+#[derive(Debug, Clone)]
+struct Config {
+    doas: Option<Arc<String>>,
+}
 
 #[ntex::main]
 async fn main() -> std::io::Result<()> {
@@ -92,41 +99,3 @@ async fn temp(cfg: State<Config>) -> Result<impl Responder> {
 
     Ok(String::from_utf8(out.stdout)?)
 }
-
-#[derive(Debug, Clone)]
-struct Config {
-    doas: Option<Arc<String>>,
-}
-
-#[derive(Debug)]
-struct ErrorWrapper(std::io::Error);
-
-impl From<std::io::Error> for ErrorWrapper {
-    #[inline]
-    fn from(value: std::io::Error) -> Self {
-        Self(value)
-    }
-}
-
-impl From<std::string::FromUtf8Error> for ErrorWrapper {
-    fn from(value: std::string::FromUtf8Error) -> Self {
-        Self(std::io::Error::new(std::io::ErrorKind::InvalidData, value))
-    }
-}
-
-impl std::fmt::Display for ErrorWrapper {
-    #[inline]
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        self.0.fmt(f)
-    }
-}
-
-impl WebResponseError for ErrorWrapper {
-    fn status_code(&self) -> StatusCode {
-        StatusCode::INTERNAL_SERVER_ERROR
-    }
-
-    fn error_response(&self, _: &web::HttpRequest) -> web::HttpResponse {
-        format!("{:?}", self.0).into()
-    }
-}