diff --git a/src/config/mod.rs b/src/config/mod.rs
index f0b2f94..bb6850b 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -24,6 +24,9 @@ pub struct Config {
 
     /// If true, print to std{out/err}
     pub verbose: bool,
+
+    /// Path to implementation config file
+    pub impl_path: Option<PathBuf>,
 }
 
 impl Default for Config {
@@ -34,6 +37,7 @@ impl Default for Config {
             accounts_path: "accounts".into(),
             map: "map.toml".into(),
             verbose: true,
+            impl_path: None,
         }
     }
 }
diff --git a/src/error.rs b/src/error.rs
index 0804b58..6db1382 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -2,7 +2,8 @@
 
 use std::{fmt, path::PathBuf};
 
-/// Error struct
+/// Error enum, which acts as different Error structs wrapper,
+/// while also handling some other errors
 #[derive(Debug)]
 #[non_exhaustive]
 pub enum Error {
@@ -19,10 +20,10 @@ pub enum Error {
 impl fmt::Display for Error {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
-            Error::IsNotAFile(path) => write!(f, "{:?} is not a file", path),
-            Error::IoError(error) => write!(f, "io error: {error}"),
-            Error::TomlSerializeError(error) => write!(f, "serialize error: {error}"),
-            Error::TomlDeserializeError(error) => write!(f, "parse error: {error}")
+            Self::IsNotAFile(path) => write!(f, "{path:?} is not a file"),
+            Self::IoError(error) => write!(f, "{error}"),
+            Self::TomlSerializeError(error) => write!(f, "{error}"),
+            Self::TomlDeserializeError(error) => write!(f, "{error}"),
         }
     }
 }