diff --git a/shell/zsh b/shell/zsh
new file mode 100644
index 0000000..115c592
--- /dev/null
+++ b/shell/zsh
@@ -0,0 +1,32 @@
+function __tas_task_idx() {
+  echo "$@" | sed 's/^\([0-9]\+\)\..\+$/\1/'
+}
+
+function __tas_show() {
+  tas show $(__tas_task_idx "$@")
+}
+
+function __tas_start() {
+  tas start $(__tas_task_idx "$@")
+}
+
+function __tas_list() {
+  tas list | fzf --info=inline --height=50% --no-sort --keep-right --layout=reverse
+}
+
+function taz() {
+  case $1 in
+    "" | "show" | "sh")
+      __tas_show $(__tas_list)
+      ;;
+
+    "list" | "ls")
+      __tas_list
+      ;;
+
+    "start" | "st")
+      __tas_start $(__tas_list)
+    
+  esac
+}
+
diff --git a/src/cli/show.rs b/src/cli/show.rs
index 9d4c06a..ca20359 100644
--- a/src/cli/show.rs
+++ b/src/cli/show.rs
@@ -58,10 +58,10 @@ pub fn execute(repo: impl Repository, args: Args) {
                 Err(idx_err) => match first.parse::<PrintPart>() {
                     Ok(part) => (None, Some(part)),
                     Err(part_err) => {
-                        return eprint!(
-                            r#"error: Invalid value "{}": {}; {}"#,
-                            first, idx_err, part_err
-                        )
+                        eprintln!("error: Invalid value {first:?}:");
+                        eprintln!("- {idx_err}");
+                        eprintln!("- {part_err}");
+                        return;
                     }
                 },
             }
@@ -73,16 +73,16 @@ pub fn execute(repo: impl Repository, args: Args) {
 
             let idx = match first.parse::<usize>() {
                 Ok(idx) => Some(idx),
-                Err(err) => return eprint!(r#"error: Invalid value "{}": {}"#, first, err),
+                Err(err) => return eprintln!("error: Invalid value {first:?}: {err}"),
             };
             let part = match second.parse::<PrintPart>() {
                 Ok(part) => Some(part),
-                Err(err) => return eprint!(r#"error: Invalid value "{}": {}"#, second, err),
+                Err(err) => return eprintln!("error: Invalid value {second:?}: {err}"),
             };
 
             (idx, part)
         }
-        _ => return eprintln!("error: To much arguments: {}", args.rest.join(",")),
+        _ => return eprintln!("error: To much arguments: {:?}", args.rest),
     };
 
     let task = if let Some(idx) = idx {