diff --git a/rust/app/src/app.rs b/rust/app/src/app.rs
index d861f1d..e78cf0c 100644
--- a/rust/app/src/app.rs
+++ b/rust/app/src/app.rs
@@ -20,6 +20,9 @@ pub struct Options {
     pub theme: Option<String>,
     /// Open a local terminal at startup and type this command once connected (testing aid).
     pub run_local: Option<String>,
+    /// Open a window at startup: editor, quick, settings[:tab], keys, snippets, triggers,
+    /// recordings, palette, export, import (screenshot checks).
+    pub open: Option<String>,
 }
 
 /// Errors from worker threads, drained into toasts each frame.
@@ -129,6 +132,9 @@ impl App {
             run_local: opts.run_local.map(|c| (c, None)),
             resize_sidebar: false,
         };
+        if let Some(w) = opts.open.as_deref() {
+            app.open_window(w);
+        }
         if let Some((_, sid)) = &mut app.run_local {
             let id = app.s.svc.connect_local();
             *sid = Some(id.clone());
@@ -151,6 +157,33 @@ impl App {
         app
     }
 
+    fn open_window(&mut self, w: &str) {
+        let (w, arg) = w.split_once(':').unwrap_or((w, ""));
+        match w {
+            "editor" => match self.s.profiles.iter().find(|p| p.protocol.id() == arg || p.id == arg).map(|p| p.id.clone()) {
+                Some(id) => self.editor.open_edit(&self.s, &id),
+                None => self.editor.open_new(&self.s, Protocol::from_id(arg), ""),
+            },
+            "quick" => self.quick.open(),
+            "settings" => self.settings.open(match arg {
+                "terminal" => SettingsTab::Terminal,
+                "security" => SettingsTab::Security,
+                "knownhosts" => SettingsTab::KnownHosts,
+                "help" => SettingsTab::Help,
+                "about" => SettingsTab::About,
+                _ => SettingsTab::General,
+            }),
+            "keys" => self.keys.open(),
+            "snippets" => self.snippets.open(),
+            "triggers" => self.triggers.open(),
+            "recordings" => self.recordings.open(),
+            "palette" => self.palette = Some(Default::default()),
+            "export" => self.transfer.export_encrypted(vec![]),
+            "import" => self.transfer.import_encrypted(),
+            _ => eprintln!("--open: unknown window {w:?}"),
+        }
+    }
+
     // --- sessions -------------------------------------------------------------------------
 
     fn view_for(&self, info: &SessionInfo, profile: Option<&Profile>) -> View {
diff --git a/rust/app/src/main.rs b/rust/app/src/main.rs
index 07c5e6f..4519310 100644
--- a/rust/app/src/main.rs
+++ b/rust/app/src/main.rs
@@ -33,7 +33,7 @@ use nexus_core::service::Service;
 use std::sync::Arc;
 
 fn main() -> eframe::Result {
-    let mut opts = app::Options { screenshot: None, theme: None, run_local: None };
+    let mut opts = app::Options { screenshot: None, theme: None, run_local: None, open: None };
     let mut size = [1360.0, 860.0];
     let mut data_dir = None;
     let mut args = std::env::args().skip(1);
@@ -41,6 +41,7 @@ fn main() -> eframe::Result {
         match a.as_str() {
             "--theme" => opts.theme = args.next(),
             "--run-local" => opts.run_local = args.next(),
+            "--open" => opts.open = args.next(),
             "--screenshot" => opts.screenshot = args.next().map(Into::into),
             // Use another data directory (testing, screenshots, portable installs).
             "--data-dir" => data_dir = args.next(),