diff --git a/crates/core/Cargo.toml b/crates/core/Cargo.toml
index 5548744a..299285cf 100644
--- a/crates/core/Cargo.toml
+++ b/crates/core/Cargo.toml
@@ -10,6 +10,12 @@ name = "acme-core"
 repository = "https://github.com/FL03/acme"
 version = "0.2.4"
 
+[features]
+default = [ "cli"]
+full = [ "cli" ]
+
+cli = [ "clap/cargo", "clap/derive", "clap/default", "clap/env"]
+
 [lib]
 crate-type = ["cdylib", "rlib"]
 test = true
@@ -19,9 +25,10 @@ test = true
 [dev-dependencies]
 
 [dependencies]
-async-trait = "0.1.59"
+async-trait = "0.1.60"
 axum = "0.6.1"
-clap = { features = ["derive"], version = "4.0.29" }
+axum-core = "0.3.0"
+clap = { features = ["cargo", "derive", "env"], optional = true, version = "4.0.29" }
 hyper = { features = ["full"], version = "0.14.23" }
 http = "0.2.8"
 http-body = "0.4.5"
diff --git a/crates/core/src/specs/apps.rs b/crates/core/src/specs/apps.rs
index 40acea12..d8345718 100644
--- a/crates/core/src/specs/apps.rs
+++ b/crates/core/src/specs/apps.rs
@@ -46,7 +46,3 @@ pub trait AsyncApplicationSpawner: AsyncSpawable {
         tracing::info!("Terminating the application and connected services...");
     }
 }
-
-#[cfg(feature = "cli")]
-#[cfg(not(feature = "wasm"))]
-pub trait CommandLineInterface: clap::Parser {}
diff --git a/crates/core/src/specs/cli.rs b/crates/core/src/specs/cli.rs
new file mode 100644
index 00000000..d2aaaf65
--- /dev/null
+++ b/crates/core/src/specs/cli.rs
@@ -0,0 +1,43 @@
+/*
+    Appellation: cli <specs>
+    Contrib: FL03 <jo3mccain@icloud.com>
+    Description: ... summary ...
+*/
+use super::{Handler, AsyncHandler};
+use scsys::AsyncResult;
+
+///
+pub trait CLISpec: clap::Parser {
+    type Cmds: Handler + clap::Subcommand;
+
+    fn command(&self) -> Option<Self::Cmds>
+    where
+        Self: Sized;
+    fn handler(&self) -> scsys::Result<&Self>
+    where
+        Self: Sized,
+    {
+        if let Some(cmd) = self.command() {
+            cmd.handler()?;
+        }
+        Ok(self)
+    }
+}
+///
+#[async_trait::async_trait]
+pub trait AsyncCLISpec: clap::Parser {
+    type Cmds: AsyncHandler + clap::Subcommand;
+
+    fn command(&self) -> Option<Self::Cmds>
+    where
+        Self: Sized;
+    async fn handler(&self) -> AsyncResult<&Self>
+    where
+        Self: Sized,
+    {
+        if let Some(cmd) = self.command().clone() {
+            cmd.handler().await?;
+        }
+        Ok(self)
+    }
+}
\ No newline at end of file
diff --git a/crates/core/src/specs/mod.rs b/crates/core/src/specs/mod.rs
index 1d30e076..0ef117e6 100644
--- a/crates/core/src/specs/mod.rs
+++ b/crates/core/src/specs/mod.rs
@@ -3,17 +3,36 @@
     Contrib: FL03 <jo3mccain@icloud.com>
     Description: ... summary ...
 */
-pub use self::apps::*;
+pub use self::{apps::*, cli::*};
 
 pub(crate) mod apps;
+#[cfg(feature = "cli")]
+pub(crate) mod cli;
 
+use async_trait::async_trait;
+
+///
+#[async_trait]
+pub trait AsyncHandler: Clone + Send + Sync {
+    type Error: std::error::Error + Send + Sync + 'static;
+
+    async fn handler(&self) -> Result<&Self, Self::Error>
+    where
+        Self: Sized;
+}
+///
+#[async_trait]
+pub trait AsyncSpawable {
+    async fn spawn(&mut self) -> scsys::AsyncResult<&Self>;
+}
+///
 pub trait BaseApplication: BaseObject + Versionable {
     fn application(&self) -> &Self {
         self
     }
     fn namespace(&self) -> String;
 }
-
+///
 pub trait BaseObject {
     fn count(&self) -> usize;
     fn name(&self) -> String;
@@ -22,16 +41,19 @@ pub trait BaseObject {
     }
     fn symbol(&self) -> String;
 }
+///
+pub trait Handler: Clone {
+    type Error: std::error::Error + 'static;
 
+    fn handler(&self) -> Result<&Self, Self::Error>
+    where
+        Self: Sized;
+}
+///
 pub trait Spawnable {
     fn spawn(&mut self) -> scsys::Result<&Self>;
 }
-
-#[async_trait::async_trait]
-pub trait AsyncSpawable {
-    async fn spawn(&mut self) -> scsys::AsyncResult<&Self>;
-}
-
+///
 pub trait Versionable {
     type Error;