diff --git a/bin/opup/src/cli.rs b/bin/opup/src/cli.rs
index 7e9d6ec..aa7ad65 100644
--- a/bin/opup/src/cli.rs
+++ b/bin/opup/src/cli.rs
@@ -1,30 +1,50 @@
-use clap::{ArgAction, Parser};
+use clap::{ArgAction, Parser, Subcommand};
 use eyre::Result;
 use std::path::PathBuf;
 
 /// Command line arguments
 #[derive(Parser, Debug)]
-#[command(author, version, about)]
+#[command(author, version, about, long_about = None)]
 pub struct Args {
     /// Verbosity level (0-4)
     #[arg(long, short, action = ArgAction::Count, default_value = "2")]
     v: u8,
+
+    /// The subcommand to run
+    #[clap(subcommand)]
+    pub command: Option<Command>,
+
     /// An optional path to a stack config file.
     #[arg(long, short)]
     config: Option<PathBuf>,
 }
 
+/// Possible CLI subcommands
+#[derive(Debug, Subcommand)]
+pub enum Command {
+    /// Build and run the devnet stack
+    Up,
+    /// Bring the devnet stack down
+    Down,
+    /// Nuke the devnet stack
+    Nuke,
+    /// Clean all stack artifacts
+    Clean,
+}
+
 pub fn run() -> Result<()> {
-    let Args { v, config } = Args::parse();
+    let Args { v, config, command } = Args::parse();
 
     crate::telemetry::init_tracing_subscriber(v)?;
 
     crate::banners::banner()?;
 
-    // todo: switch on subcommands
-    // default should be to run the devnet stack
-    // should also allow nuking the devnet
-    // and stopping an already running devnet
+    match command {
+        Some(Command::Up) | None => crate::stack::Stack::new(config).run()?,
+        Some(Command::Down) => unimplemented!("down command not yet implemented"),
+        Some(Command::Nuke) => unimplemented!("nuke command not yet implemented"),
+        Some(Command::Clean) => unimplemented!("clean command not yet implemented"),
+    }
 
-    crate::stack::Stack::new(config).run()
+    Ok(())
 }