{
            {
                let child_proc = Rc::clone(&child_proc);
                let widgets = widgets.clone();
                let server_entry = server_entry.clone();
                let server_addr_fallback = Rc::clone(&server_addr);
                let clipboard_tx = clipboard_tx.clone();
                widgets.clipboard_button.connect_clicked(move |_| {
                    if child_proc.borrow().is_none() {
                        widgets
                            .status_label
                            .set_text("Start the relay before sending clipboard text.");
                        return;
                    }
                    let server_addr =
                        selected_server_addr(&server_entry, server_addr_fallback.as_ref());
                    let Some(display) = gtk::gdk::Display::default() else {
                        widgets
                            .status_label
                            .set_text("No desktop clipboard is available in this session.");
                        return;
                    };
                    widgets
                        .status_label
                        .set_text("Reading the local clipboard and preparing remote paste...");
                    let clipboard = display.clipboard();
                    let clipboard_tx = clipboard_tx.clone();
                    clipboard.read_text_async(None::<&gtk::gio::Cancellable>, move |result| {
                        match result {
                            Ok(Some(text)) => {
                                let text = text.trim_end_matches(['\r', '\n']).to_string();
                                if text.is_empty() {
                                    let _ = clipboard_tx.send(ClipboardMessage::Finished(Err(
                                        "clipboard is empty".to_string(),
                                    )));
                                    return;
                                }
                                let clipboard_tx = clipboard_tx.clone();
                                std::thread::spawn(move || {
                                    let result = send_clipboard_text_to_remote(&server_addr, &text)
                                        .map_err(|err| err.to_string());
                                    let _ = clipboard_tx
                                        .send(ClipboardMessage::Finished(result));
                                });
                            }
                            Ok(None) => {
                                let _ = clipboard_tx.send(ClipboardMessage::Finished(Err(
                                    "clipboard is empty".to_string(),
                                )));
                            }
                            Err(err) => {
                                let _ = clipboard_tx.send(ClipboardMessage::Finished(Err(
                                    format!("clipboard read failed: {err}"),
                                )));
                            }
                        }
                    });
                });
            }

            {
                let widgets = widgets.clone();
                widgets.probe_button.connect_clicked(move |_| {
                    if let Some(display) = gtk::gdk::Display::default() {
                        let clipboard = display.clipboard();
                        clipboard.set_text(quality_probe_command());
                        widgets
                            .status_label
                            .set_text("Quality probe command copied to the local clipboard.");
                    } else {
                        widgets
                            .status_label
                            .set_text("No desktop clipboard is available in this session.");
                    }
                });
            }

            {
                let widgets = widgets.clone();
                let server_entry = server_entry.clone();
                let server_addr_fallback = Rc::clone(&server_addr);
                let widgets_for_click = widgets.clone();
                widgets.usb_recover_button.connect_clicked(move |_| {
                    let server_addr =
                        selected_server_addr(&server_entry, server_addr_fallback.as_ref());
                    widgets_for_click.status_label.set_text(
                        "Requesting a forced USB gadget re-enumeration on the relay host...",
                    );
                    let (tx, rx) = std::sync::mpsc::channel();
                    std::thread::spawn(move || {
                        let result =
                            reset_usb_gadget(&server_addr).map_err(|err| format!("{err:#}"));
                        let _ = tx.send(result);
                    });
                    let widgets = widgets_for_click.clone();
                    glib::timeout_add_local(Duration::from_millis(100), move || {
                        match rx.try_recv() {
                            Ok(Ok(())) => {
                                widgets.status_label.set_text(
                                    "USB gadget recovery requested. Give the host a few seconds to re-enumerate keyboard, mouse, webcam, and audio.",
                                );
                                glib::ControlFlow::Break
                            }
                            Ok(Err(err)) => {
                                widgets
                                    .status_label
                                    .set_text(&format!("USB gadget recovery failed: {err}"));
                                glib::ControlFlow::Break
                            }
                            Err(std::sync::mpsc::TryRecvError::Empty) => glib::ControlFlow::Continue,
                            Err(std::sync::mpsc::TryRecvError::Disconnected) => {
                                widgets.status_label.set_text(
                                    "USB gadget recovery ended unexpectedly before the relay answered.",
                                );
                                glib::ControlFlow::Break
                            }
                        }
                    });
                });
            }

            {
                let widgets = widgets.clone();
                widgets.diagnostics_copy_button.connect_clicked(move |_| {
                    if let Err(err) = copy_plain_text(&widgets.diagnostics_rendered_text.borrow()) {
                        widgets
                            .status_label
                            .set_text(&format!("Could not copy the diagnostics report: {err}"));
                    } else {
                        widgets
                            .status_label
                            .set_text("Diagnostics report copied to the local clipboard.");
                    }
                });
            }

            {
                let app = app.clone();
                let widgets = widgets.clone();
                let diagnostics_popout = Rc::clone(&diagnostics_popout);
                widgets.diagnostics_popout_button.connect_clicked(move |_| {
                    open_diagnostics_popout(
                        &app,
                        &diagnostics_popout,
                        &widgets.diagnostics_popout_label,
                        &widgets.diagnostics_popout_scroll,
                        &widgets.diagnostics_rendered_text,
                    );
                    widgets
                        .status_label
                        .set_text("Diagnostics report moved into its own window.");
                });
            }

            {
                let widgets = widgets.clone();
                widgets.console_level_combo.connect_changed(move |combo| {
                    let level = combo
                        .active_id()
                        .as_deref()
                        .and_then(ConsoleLogLevel::from_id)
                        .unwrap_or_default();
                    *widgets.session_log_level.borrow_mut() = level;
                    widgets.status_label.set_text(&format!(
                        "Console now shows {} relay logs and higher.",
                        level.label()
                    ));
                });
            }

            {
                let widgets = widgets.clone();
                widgets.console_copy_button.connect_clicked(move |_| {
                    if let Err(err) = copy_session_log(&widgets.session_log_buffer) {
                        widgets
                            .status_label
                            .set_text(&format!("Could not copy the session log: {err}"));
                    } else {
                        widgets
                            .status_label
                            .set_text("Session log copied to the local clipboard.");
                    }
                });
            }

            {
                let app = app.clone();
                let widgets = widgets.clone();
                let log_popout = Rc::clone(&log_popout);
                widgets.console_popout_button.connect_clicked(move |_| {
                    open_session_log_popout(&app, &log_popout, &widgets.session_log_buffer);
                    widgets
                        .status_label
                        .set_text("Session log moved into its own window.");
                });
            }
}