diff --git a/po/POTFILES.in b/po/POTFILES.in
index f266ae9..82000d2 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -6,6 +6,7 @@ data/gtk/window.ui
 data/org.gnome.Loupe.desktop.in.in
 data/org.gnome.Loupe.metainfo.xml.in.in
 data/resources/gtk/help-overlay.ui
+src/about.rs
 src/application.rs
 src/decoder/formats/glycin_proxy.rs
 src/decoder/formats/mod.rs
diff --git a/src/about.rs b/src/about.rs
new file mode 100644
index 0000000..12ac4af
--- /dev/null
+++ b/src/about.rs
@@ -0,0 +1,71 @@
+// Copyright (c) 2023 Sophie Herold
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+use gettextrs::gettext;
+
+use crate::config;
+
+pub async fn window() -> adw::AboutWindow {
+    // Builders are a pattern that allow you to create
+    // an object and set all relevant properties very
+    // easily in a way that's idiomatic to Rust.
+    adw::AboutWindow::builder()
+        .application_name(gettext("Loupe"))
+        .application_icon(config::APP_ID)
+        .version(config::VERSION)
+        .developer_name(gettext("The Loupe Team"))
+        .website("https://gitlab.gnome.org/GNOME/Incubator/loupe")
+        .issue_url("https://gitlab.gnome.org/GNOME/Incubator/loupe/-/issues/new")
+        .developers([
+            "Christopher Davis <christopherdavis@gnome.org>",
+            "Sophie Herold <sophieherold@gnome.org>",
+        ])
+        .designers(["Allan Day", "Jakub Steiner", "Tobias Bernard"])
+        // Translators: Replace "translator-credits" with your names, one name per line
+        .translator_credits(gettext("translator-credits"))
+        .copyright(gettext("Copyright © 2020–2023 Christopher Davis et al."))
+        .license_type(gtk::License::Gpl30)
+        .debug_info(debug_info().await)
+        .build()
+}
+
+async fn etc() -> std::path::PathBuf {
+    if ashpd::is_sandboxed().await {
+        std::path::PathBuf::from("/run/host/etc")
+    } else {
+        std::path::PathBuf::from("/etc")
+    }
+}
+
+async fn os_release() -> String {
+    let os_release = etc().await.join("os-release");
+    std::fs::read_to_string(os_release).unwrap_or_default()
+}
+
+async fn debug_info() -> String {
+    [
+        format!("- Version: {}", config::VERSION),
+        format!("- App ID: {}", config::APP_ID),
+        format!(
+            "- Sandboxed: {} {}",
+            ashpd::is_sandboxed().await,
+            std::env::var("container").unwrap_or_default()
+        ),
+        format!("\n##### OS Information\n```\n{}\n```", os_release().await),
+    ]
+    .join("\n")
+}
diff --git a/src/application.rs b/src/application.rs
index 131d58d..7606c7a 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -18,8 +18,8 @@
 //
 // SPDX-License-Identifier: GPL-3.0-or-later
 
+use crate::about;
 use crate::deps::*;
-use crate::util::gettext::*;
 use crate::util::spawn;
 
 use adw::prelude::*;
@@ -112,7 +112,10 @@ impl LpApplication {
         // add them with add_action_entries().
         let actions = [
             gio::ActionEntryBuilder::new("about")
-                .activate(|app: &Self, _, _| app.show_about())
+                .activate(|app: &Self, _, _| {
+                    let app = app.clone();
+                    spawn(async move { app.show_about().await });
+                })
                 .build(),
             gio::ActionEntryBuilder::new("help")
                 .activate(|app: &Self, _, _| app.show_help())
@@ -185,27 +188,8 @@ impl LpApplication {
         self.set_accels_for_action("window.close", &["<Ctrl>W"]);
     }
 
-    pub fn show_about(&self) {
-        // Builders are a pattern that allow you to create
-        // an object and set all relevant properties very
-        // easily in a way that's idiomatic to Rust.
-        let about = adw::AboutWindow::builder()
-            .application_name(gettext("Loupe"))
-            .application_icon(config::APP_ID)
-            .version(config::VERSION)
-            .developer_name(gettext("The Loupe Team"))
-            .website("https://gitlab.gnome.org/GNOME/Incubator/loupe")
-            .issue_url("https://gitlab.gnome.org/GNOME/Incubator/loupe/-/issues/new")
-            .developers([
-                "Christopher Davis <christopherdavis@gnome.org>",
-                "Sophie Herold <sophieherold@gnome.org>",
-            ])
-            .designers(["Allan Day", "Jakub Steiner", "Tobias Bernard"])
-            // Translators: Replace "translator-credits" with your names, one name per line
-            .translator_credits(gettext("translator-credits"))
-            .copyright(gettext("Copyright © 2020–2023 Christopher Davis et al."))
-            .license_type(gtk::License::Gpl30)
-            .build();
+    pub async fn show_about(&self) {
+        let about = about::window().await;
 
         if let Some(window) = self.active_window() {
             about.set_transient_for(Some(&window));
diff --git a/src/main.rs b/src/main.rs
index ba46d54..41196c2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -48,6 +48,7 @@ Simplified widget arrangement including the most important widgets.
 use gettextrs::*;
 use gtk::gio::{self, prelude::*};
 
+mod about;
 mod application;
 mod config;
 mod decoder;