diff --git a/Cargo.lock b/Cargo.lock
index f235adb..14b6a4e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -28,7 +28,7 @@ dependencies = [
 
 [[package]]
 name = "allrisbot"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "bot-utils",
  "chrono",
diff --git a/Cargo.toml b/Cargo.toml
index 733ab98..c1bfb2d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ members = [
 [package]
 name = "allrisbot"
 description = "Telegram bot that notifies users about newly published documents in the Allris 4 council information system"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2024"
 repository = "https://github.com/jdertmann/AllrisBot"
 license = "AGPL-3.0-or-later"
diff --git a/src/bot/command_help.rs b/src/bot/command_help.rs
index 1023842..a2ae87d 100644
--- a/src/bot/command_help.rs
+++ b/src/bot/command_help.rs
@@ -96,8 +96,9 @@ fn about_paragraph(owner: Option<&str>) -> impl WriteToMessage {
 
         write!(
             msg,
-            "Der Quellcode dieses Bots ist öffentlich zugänglich: {}",
+            "Der Quellcode dieses Bots ist öffentlich zugänglich: {} (Version {})",
             env!("CARGO_PKG_REPOSITORY"),
+            env!("CARGO_PKG_VERSION")
         )?;
 
         if let Some(owner) = owner {
diff --git a/src/broadcasting.rs b/src/broadcasting.rs
index bd0ce53..2092675 100644
--- a/src/broadcasting.rs
+++ b/src/broadcasting.rs
@@ -49,7 +49,7 @@ pub struct RedisBackend {
 
 impl RedisBackend {
     pub fn new(bot: crate::Bot, db: redis::Client) -> Self {
-        let db = DatabaseConnection::new(db, None).shared();
+        let db = DatabaseConnection::new(db, None).into_shared();
         let cache = LruCache::new(Lru::new(30));
 
         Self { bot, db, cache }
diff --git a/src/database.rs b/src/database.rs
index fe4cd51..a99d309 100644
--- a/src/database.rs
+++ b/src/database.rs
@@ -145,7 +145,7 @@ impl DatabaseConnection {
         }
     }
 
-    pub fn shared(self) -> SharedDatabaseConnection {
+    pub fn into_shared(self) -> SharedDatabaseConnection {
         SharedDatabaseConnection {
             client: self.client.clone(),
             timeout: self.timeout,
diff --git a/src/main.rs b/src/main.rs
index a422256..0bc1bad 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -89,12 +89,11 @@ struct Args {
 
 fn parse_redis_url(input: &str) -> Result<ConnectionInfo, String> {
     let url = Url::parse(input).map_err(|e| e.to_string())?;
-    let info = url.into_connection_info().map_err(
+    url.into_connection_info().map_err(
         // the `redis` crate implements no other way to get to a human-friendly error description
         #[allow(deprecated)]
         |e| e.description().to_string(),
-    )?;
-    Ok(info)
+    )
 }
 
 fn parse_owner_username(mut input: &str) -> Result<String, String> {
@@ -146,7 +145,7 @@ async fn main() -> ExitCode {
 
         let handle = tokio::spawn(bot::run(
             bot.clone(),
-            DatabaseConnection::new(db_client.clone(), Some(Duration::from_secs(6))).shared(),
+            DatabaseConnection::new(db_client.clone(), Some(Duration::from_secs(6))).into_shared(),
             args.owner,
             rx,
         ));
@@ -198,3 +197,22 @@ async fn main() -> ExitCode {
 
     ExitCode::SUCCESS
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::parse_owner_username;
+
+    #[test]
+    fn test_parse_username() {
+        let test_cases = [
+            ("@abcD123", Some("abcD123")),
+            ("dsgz_sfdnj", Some("dsgz_sfdnj")),
+            ("@@wrong", None),
+            ("abc!", None),
+        ];
+
+        for (input, expected) in test_cases {
+            assert_eq!(parse_owner_username(input).ok().as_deref(), expected)
+        }
+    }
+}