diff --git a/Cargo.lock b/Cargo.lock
index bed08a0..4cb3801 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1041,7 +1041,7 @@ dependencies = [
 
 [[package]]
 name = "sway-flash-indicator"
-version = "0.6.2"
+version = "0.6.3"
 dependencies = [
  "directories",
  "futures-util",
diff --git a/Cargo.toml b/Cargo.toml
index 79b4372..800bf52 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sway-flash-indicator"
-version = "0.6.2"
+version = "0.6.3"
 edition = "2021"
 
 [dependencies]
diff --git a/packaging/PKGBUILD b/packaging/PKGBUILD
index af3ee7c..0cc778d 100644
--- a/packaging/PKGBUILD
+++ b/packaging/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Alex Janka <alex@alexjanka.com>
 
 pkgname=sway-flash-indicator
-pkgver=0.6.2
+pkgver=0.6.3
 pkgrel=1
 pkgdesc="flashes sway indicator border rather than always showing it"
 arch=('x86_64' 'aarch64')
diff --git a/src/config.rs b/src/config.rs
index d7d6eab..322eb93 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -12,6 +12,7 @@ pub struct Config {
     pub flash_colour: colour::Format,
     pub autosplit_enabled: bool,
     pub autosplit_ratio: f64,
+    pub force_stacking: Vec<String>,
     pub force_tabbed: Vec<String>,
     pub output_blocklist: Vec<String>,
     #[serde(default = "default_log_dir")]
@@ -131,6 +132,7 @@ impl Default for Config {
             flash_colour: colour::parse_hex("#ff0000").unwrap(),
             autosplit_enabled: true,
             autosplit_ratio: 1.0,
+            force_stacking: Vec::new(),
             force_tabbed: Vec::new(),
             output_blocklist: Vec::new(),
             log_dir: std::path::PathBuf::new(),
diff --git a/src/main.rs b/src/main.rs
index f813e52..943a0e4 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -77,33 +77,49 @@ async fn main() -> Res<()> {
                     let node = window.container;
                     let tree = command_connection.get_tree().await?;
                     let config = CONFIG.get().await;
-                    if window.change == swayipc_async::WindowChange::New
-                        && node.app_id.as_ref().is_some_and(|app_id| {
+                    if window.change == swayipc_async::WindowChange::New {
+                        if node.app_id.as_ref().is_some_and(|app_id| {
                             config
                                 .force_tabbed
                                 .iter()
                                 .any(|name| name.eq_ignore_ascii_case(app_id))
-                        })
-                    {
-                        if let Some(parent) = tree.find_as_ref(|n| n.focus.contains(&node.id)) {
-                            if parent.layout == swayipc_async::NodeLayout::SplitH
-                                || parent.layout == swayipc_async::NodeLayout::SplitV
-                            {
-                                command_connection.run_command("splith").await?;
-                                command_connection.run_command("layout tabbed").await?;
+                        }) {
+                            if let Some(parent) = tree.find_as_ref(|n| n.focus.contains(&node.id)) {
+                                if parent.layout == swayipc_async::NodeLayout::SplitH
+                                    || parent.layout == swayipc_async::NodeLayout::SplitV
+                                {
+                                    command_connection.run_command("splith").await?;
+                                    command_connection.run_command("layout tabbed").await?;
+                                }
+                            }
+                        } else if node.app_id.as_ref().is_some_and(|app_id| {
+                            config
+                                .force_stacking
+                                .iter()
+                                .any(|name| name.eq_ignore_ascii_case(app_id))
+                        }) {
+                            if let Some(parent) = tree.find_as_ref(|n| n.focus.contains(&node.id)) {
+                                if parent.layout == swayipc_async::NodeLayout::SplitH
+                                    || parent.layout == swayipc_async::NodeLayout::SplitV
+                                {
+                                    command_connection.run_command("splith").await?;
+                                    command_connection.run_command("layout stacking").await?;
+                                }
                             }
                         }
-                    }
 
-                    if window.change == swayipc_async::WindowChange::New
-                        && node.app_id == Some(String::from("code-url-handler"))
-                    {
-                        recent_code = Some((std::time::Instant::now(), node.id));
-                    } else if recent_code.is_some_and(|(t, _)| {
-                        std::time::Instant::now().duration_since(t)
-                            > std::time::Duration::from_millis(200)
-                    }) {
-                        recent_code = None;
+                        if node
+                            .app_id
+                            .as_ref()
+                            .is_some_and(|app_id| app_id.eq_ignore_ascii_case("code-url-handler"))
+                        {
+                            recent_code = Some((std::time::Instant::now(), node.id));
+                        } else if recent_code.is_some_and(|(t, _)| {
+                            std::time::Instant::now().duration_since(t)
+                                > std::time::Duration::from_millis(200)
+                        }) {
+                            recent_code = None;
+                        }
                     }
 
                     if let Some((_, id)) = recent_code {