Well... It's a bit of a cop out, I won't lie. But editor mode is the default across platforms now because it solves a bunch of issues with starting in Live mode I just don't feel like tackling right now. I'll come around...

linux/src/app.rs

@@ -301,9 +301,12 @@ impl App {
     }
 
     fn save_file_as(&mut self) {
+        let notes_dir = self.config.notes_dir();
+        let _ = std::fs::create_dir_all(&notes_dir);
         let dialog = rfd::FileDialog::new()
             .add_filter("Markdown", &["md"])
             .add_filter("All Files", &["*"])
+            .set_directory(&notes_dir)
             .set_file_name("note.md");
         if let Some(path) = dialog.save_file() {
             self.write_to(&path);
@@ -324,6 +327,7 @@ impl App {
     }
 
     fn new_note(&mut self) {
+        viewport_send_command(self.handle, 12);
         let stub = CString::new("# ").unwrap();
         viewport_set_text(self.handle, stub.as_ptr());
         if let Some(w) = &self.window {
@@ -394,6 +398,7 @@ impl ApplicationHandler for App {
             Some(h) => {
                 self.handle = Box::into_raw(Box::new(h));
                 self.sync_settings();
+                viewport_send_command(self.handle, 12);
                 let stub = CString::new("# ").unwrap();
                 viewport_set_text(self.handle, stub.as_ptr());
             }

src/AppDelegate.swift

@@ -6,6 +6,7 @@ import UniformTypeIdentifiers
 extension Notification.Name {
     static let focusEditor = Notification.Name("focusEditor")
     static let focusTitle = Notification.Name("focusTitle")
+    static let newNoteSeeded = Notification.Name("newNoteSeeded")
 }
 
 class WindowController {
@@ -83,6 +84,11 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSMenuItemValidation {
             name: .settingsChanged, object: nil
         )
 
+        NotificationCenter.default.addObserver(
+            self, selector: #selector(handleNewNoteSeeded),
+            name: .newNoteSeeded, object: nil
+        )
+
         if let url = pendingOpenURLs.first {
             pendingOpenURLs = []
             appState.loadNoteFromFile(url)
@@ -609,6 +615,10 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSMenuItemValidation {
         viewport?.sendCommand(12)
     }
 
+    @objc private func handleNewNoteSeeded() {
+        viewport?.sendCommand(12)
+    }
+
     @objc private func setViewMode() {
         viewport?.sendCommand(13)
     }

src/AppState.swift

@@ -300,6 +300,7 @@ class AppState: ObservableObject {
         let id = bridge.newDocument()
         currentNoteID = id
         selectedNoteIDs = [id]
+        NotificationCenter.default.post(name: .newNoteSeeded, object: nil)
         documentText = "# "
         evalResults = [:]
         modified = false

windows/src/app.rs

@@ -247,6 +247,7 @@ impl App {
     }
 
     fn new_note(&mut self) {
+        viewport_send_command(self.handle, 12);
         let stub = CString::new("# ").unwrap();
         viewport_set_text(self.handle, stub.as_ptr());
         if let Some(w) = &self.window {