diff --git a/Cargo.lock b/Cargo.lock
index 7f43131..1fd69ab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1156,6 +1156,7 @@ dependencies = [
  "markdown",
  "rfd",
  "serde",
+ "tempfile",
  "thiserror 2.0.16",
  "tinyrand",
  "tokio",
@@ -3128,9 +3129,9 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.21.0"
+version = "3.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15b61f8f20e3a6f7e0649d825294eaf317edce30f82cf6026e7e4cb9222a7d1e"
+checksum = "2d31c77bdf42a745371d260a26ca7163f1e0924b64afa0b688e61b5a9fa02f16"
 dependencies = [
  "fastrand",
  "getrandom",
diff --git a/Cargo.toml b/Cargo.toml
index 7e11b65..4775d8f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,6 +15,7 @@ axum = "0.8.4"
 tokio = { version = "1.47.1", features = ["full"] }
 tinyrand = "0.5.0"
 clipboard-rs = "0.3.0"
+tempfile = "3.23.0"
 
 [package.metadata.bundle]
 identifier = "org.geekfu.fleen"
diff --git a/src/fleen_app.rs b/src/fleen_app.rs
index 8cfc3ce..dd342c2 100644
--- a/src/fleen_app.rs
+++ b/src/fleen_app.rs
@@ -32,7 +32,11 @@ pub enum FleenError {
     #[error("Target dir is invalid (can't contain the app dir or vice versa)")]
     TargetDir,
     #[error("IO error: {0}")]
-    Io(#[from] io::Error)
+    Io(#[from] io::Error),
+    #[error("Deploy script missing! Create _scripts/deploy.sh")]
+    ScriptMissing,
+    #[error("Deploy script error:\n\n{0}")]
+    DeployError(String)
 }
 
 #[derive(Clone, Debug)]
@@ -279,6 +283,32 @@ impl FleenApp {
         }
         Ok(())
     }
+
+    pub fn build_and_deploy(&self) -> Result<String, FleenError> {
+        let output_dir = tempfile::tempdir().map_err(|_| TargetDir)?;
+        self.build_site(&output_dir.path())?; // Attempt to build the site somewhere
+
+        let deploy_script_path = self.root.join("_scripts/deploy.sh");
+        if !deploy_script_path.exists() {
+            Err(FleenError::ScriptMissing)
+        } else {
+            let mut command = Command::new(deploy_script_path);
+            command.current_dir(output_dir.path()); // don't consume dir!
+            match command.output() {
+                Ok(output) => {
+                    let output = String::from_utf8(output.stdout).unwrap_or("Error reading deploy script output".to_string());
+                    if command.status().unwrap().success() {
+                        Ok(output)
+                    } else {
+                        Err(FleenError::DeployError(output))
+                    }
+                },
+                Err(e) => {
+                    Err(FleenError::DeployError(e.to_string()))
+                }
+            }
+        }
+    }
 }
 
 #[cfg(test)]
diff --git a/src/main.rs b/src/main.rs
index 4c06def..c2b2da3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -39,6 +39,7 @@ struct TempMessage {
 struct FleenUi {
     app: Option<FleenApp>,
     error: Option<FleenError>,
+    message: Option<String>,
     selected_file: Option<String>,
     dialog_mode: Option<DialogMode>,
     server_handle: Option<JoinHandle<()>>,
@@ -51,6 +52,7 @@ impl Default for FleenUi {
         Self {
             app: None,
             error: None,
+            message: None,
             selected_file: None,
             dialog_mode: None,
             server_handle: None,
@@ -103,11 +105,17 @@ impl FleenUi {
                 });
                 ui.column(width, |ui| self.server_controls(ui));
                 ui.column(width, |ui| {
-                    if ui.add_fill_width(Button::green("Build site...")).clicked() &&
+                    if ui.add_fill_width(Button::green("Build and deploy")).clicked() {
+                        match self.app.as_ref().unwrap().build_and_deploy() {
+                            Ok(output) => { self.message = Some(format!("Site built and deployed:\n\n{}", output)) }
+                            Err(err) => { self.error = Some(err) }
+                        }
+                    }
+
+                    if ui.add_fill_width(Button::blue("Build site...")).clicked() &&
                         let Some(path) = rfd::FileDialog::new().pick_folder() {
                         match self.app.as_ref().unwrap().build_site(&path) {
-                            // TODO some kind of temporary notification thing
-                            Ok(()) => { println!("Yay!") }
+                            Ok(()) => { self.message = Some("Site built successfully".to_string()) }
                             Err(err) => { self.error = Some(err) }
                         }
                     }
@@ -358,6 +366,16 @@ impl eframe::App for FleenUi {
             });
         }
 
+        if let Some(message) = &self.message {
+            let message = message.clone();
+            egui::Window::new("FYI").collapsible(false).resizable(false).show(ctx, |ui| {
+                ui.label(message);
+                if ui.button("Thanks!").clicked() {
+                    self.message = None
+                }
+            });
+        }
+
         if let Some(TempMessage { created, .. }) = &self.image_message
             && *created < Instant::now() - Duration::from_secs(2) {
             self.image_message = None
diff --git a/templates/deploy.sh b/templates/deploy.sh
new file mode 100644
index 0000000..c0f87cf
--- /dev/null
+++ b/templates/deploy.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Make this be a script that will deploy your site. Assume it'll be run from the
+# path of the built site, that the build succeeded, and that anything written to
+# stdout will be displayed in a dialog.
+
+# Example:
+# rsync -r . root@example.com:/var/www/html 2>&1 && echo "Site deployed!"
+
+echo "Edit _scripts/deploy.sh to set up deploy script"
\ No newline at end of file