Initial release: friendly TUI for FFmpeg

File browser, stackable edits (trim, resize, crop, rotate, speed,
color, effects, fps, compress, convert, audio) with a live preview
of the generated ffmpeg command, progress bar with cancel, audio-aware
edit menus, and Catppuccin Macchiato theme.

src/main.rs

@@ -0,0 +1,58 @@
+mod app;
+mod ffmpeg;
+mod ops;
+mod ui;
+
+use std::process::Command;
+use std::time::Duration;
+
+use anyhow::{bail, Result};
+use ratatui::crossterm::event::{self, Event, KeyEventKind};
+use ratatui::DefaultTerminal;
+
+use app::App;
+
+fn main() -> Result<()> {
+    if let Some(arg) = std::env::args().nth(1) {
+        match arg.as_str() {
+            "--version" | "-V" => {
+                println!("lazyff {}", env!("CARGO_PKG_VERSION"));
+                return Ok(());
+            }
+            _ => {
+                println!("lazyff {} — a friendly TUI for FFmpeg", env!("CARGO_PKG_VERSION"));
+                println!("Usage: lazyff        (opens a file browser in the current directory)");
+                return Ok(());
+            }
+        }
+    }
+
+    for bin in ["ffmpeg", "ffprobe"] {
+        if Command::new(bin).arg("-version").output().is_err() {
+            bail!("{bin} was not found on your PATH. Please install FFmpeg first.");
+        }
+    }
+
+    let mut terminal = ratatui::init();
+    let result = run(&mut terminal);
+    ratatui::restore();
+    result
+}
+
+fn run(terminal: &mut DefaultTerminal) -> Result<()> {
+    let mut app = App::new()?;
+    loop {
+        app.poll_run_messages();
+        terminal.draw(|f| ui::draw(f, &mut app))?;
+        if event::poll(Duration::from_millis(100))? {
+            if let Event::Key(key) = event::read()? {
+                if key.kind == KeyEventKind::Press {
+                    app.on_key(key);
+                }
+            }
+        }
+        if app.should_quit {
+            return Ok(());
+        }
+    }
+}