diff --git a/crates/tek_core/src/tui.rs b/crates/tek_core/src/tui.rs
index 6538e804..59cb0c88 100644
--- a/crates/tek_core/src/tui.rs
+++ b/crates/tek_core/src/tui.rs
@@ -15,7 +15,7 @@ pub struct Tui {
     exited:  Arc<AtomicBool>,
     buffer:  Buffer,
     backend: CrosstermBackend<Stdout>,
-    area:    [u16;4],
+    area:    [u16;4], // FIXME auto resize
 }
 impl Engine for Tui {
     type Unit    = u16;
@@ -122,7 +122,7 @@ impl Tui {
     fn flip (&mut self, mut buffer: Buffer) -> Buffer {
         let updates = self.buffer.diff(&buffer);
         self.backend.draw(updates.into_iter()).expect("failed to render");
-        self.backend.flush();
+        self.backend.flush().expect("failed to flush output buffer");
         std::mem::swap(&mut self.buffer, &mut buffer);
         buffer.reset();
         buffer
@@ -280,13 +280,13 @@ pub fn buffer_update (buf: &mut Buffer, area: [u16;4], callback: &impl Fn(&mut C
 
 impl Widget for &str {
     type Engine = Tui;
-    fn layout (&self, area: [u16;2]) -> Perhaps<[u16;2]> {
+    fn layout (&self, _: [u16;2]) -> Perhaps<[u16;2]> {
         // TODO: line breaks
         Ok(Some([self.len() as u16, 1]))
     }
     fn render (&self, to: &mut TuiOutput) -> Usually<()> {
         let [x, y, ..] = to.area();
-        let [w, h] = self.layout(to.area().wh())?.unwrap();
+        //let [w, h] = self.layout(to.area().wh())?.unwrap();
         Ok(to.blit(&self, x, y, None))
     }
 }
@@ -295,13 +295,13 @@ pub struct Styled<T: Widget<Engine = Tui>>(pub Option<Style>, pub T);
 
 impl Widget for Styled<&str> {
     type Engine = Tui;
-    fn layout (&self, area: [u16;2]) -> Perhaps<[u16;2]> {
+    fn layout (&self, _: [u16;2]) -> Perhaps<[u16;2]> {
         Ok(Some([self.1.len() as u16, 1]))
     }
     fn render (&self, to: &mut TuiOutput) -> Usually<()> {
         // FIXME
         let [x, y, ..] = to.area();
-        let [w, h] = self.layout(to.area().wh())?.unwrap();
+        //let [w, h] = self.layout(to.area().wh())?.unwrap();
         Ok(to.blit(&self.1, x, y, None))
     }
 }
@@ -367,7 +367,7 @@ pub struct Border<S: BorderStyle>(pub S);
 
 impl<S: BorderStyle> Widget for Border<S> {
     type Engine = Tui;
-    fn layout (&self, to: [u16;2]) -> Perhaps<[u16;2]> {
+    fn layout (&self, _: [u16;2]) -> Perhaps<[u16;2]> {
         Ok(Some([0, 0]))
     }
     fn render (&self, to: &mut TuiOutput) -> Usually<()> {