feat: init desktop app

apps/desktop/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "opencut-desktop"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "opencut"
+path = "src/main.rs"
+
+[dependencies]
+gpui = "0.2.2"

apps/desktop/README.md

@@ -0,0 +1,47 @@
+# Desktop
+
+The native desktop app, built with [GPUI](https://gpui.rs).
+
+## Getting started
+
+**1. Install Rust:**
+
+```bash
+# Linux / macOS / WSL
+./script/setup-rust
+```
+
+```powershell
+# Windows
+powershell -ExecutionPolicy Bypass -File .\script\setup-rust.ps1
+```
+
+Both scripts skip installation if Rust is already present. On Linux/macOS/WSL only: after a fresh install, reload your shell with `source "$HOME/.cargo/env"`
+
+**2. Install native dependencies:**
+
+```bash
+# Linux / macOS / WSL
+./apps/desktop/script/setup
+```
+
+```powershell
+# Windows
+powershell -ExecutionPolicy Bypass -File .\apps\desktop\script\setup.ps1
+```
+
+**3. Run:**
+
+```bash
+cargo run -p opencut-desktop
+```
+
+## Platform notes
+
+**Linux:** supports apt (Debian/Ubuntu/Mint), dnf (Fedora/RHEL), and pacman (Arch).
+
+**macOS:** installs Xcode Command Line Tools if missing.
+
+**Windows:** the setup script checks for Visual Studio Build Tools. If missing, it prints the install link.
+
+**WSL:** runs the same scripts as Linux. Window rendering works via WSLg on Windows 11 and Windows 10 22H2+. If you're on an older build, test on the host instead.

apps/desktop/script/setup

@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+
+# Installs the native system libraries GPUI needs to compile on Linux/macOS.
+# Run script/setup-rust first if you don't have Rust installed yet.
+
+set -euo pipefail
+
+if [ "$(id -u)" -eq 0 ]; then
+  maysudo=''
+else
+  maysudo="$(command -v sudo || command -v doas || true)"
+fi
+
+# Ubuntu, Debian, Mint, Pop!_OS, Kali, Raspbian, etc.
+apt=$(command -v apt-get || true)
+if [[ -n $apt ]]; then
+  deps=(
+    curl
+    build-essential
+    pkg-config
+    gcc
+    g++
+    make
+    libasound2-dev
+    libfontconfig-dev
+    libglib2.0-dev
+    libssl-dev
+    libva-dev
+    libvulkan1
+    libwayland-dev
+    libx11-xcb-dev
+    libxkbcommon-x11-dev
+    libzstd-dev
+    libsqlite3-dev
+  )
+
+  $maysudo "$apt" update
+  $maysudo "$apt" install -y "${deps[@]}"
+  echo "Desktop native dependencies installed."
+  exit 0
+fi
+
+# Fedora, RHEL, CentOS, Alma, etc.
+dnf=$(command -v dnf || true)
+if [[ -n $dnf ]]; then
+  deps=(
+    gcc
+    gcc-c++
+    make
+    pkg-config
+    alsa-lib-devel
+    fontconfig-devel
+    glib2-devel
+    openssl-devel
+    libva-devel
+    vulkan-loader
+    wayland-devel
+    libxcb-devel
+    libxkbcommon-x11-devel
+    libzstd-devel
+    sqlite-devel
+    curl
+  )
+
+  $maysudo "$dnf" install -y "${deps[@]}"
+  echo "Desktop native dependencies installed."
+  exit 0
+fi
+
+# Arch, Manjaro, etc.
+pacman=$(command -v pacman || true)
+if [[ -n $pacman ]]; then
+  deps=(
+    gcc
+    make
+    pkgconf
+    alsa-lib
+    fontconfig
+    glib2
+    openssl
+    libva
+    vulkan-loader
+    wayland
+    libxcb
+    libxkbcommon-x11
+    zstd
+    sqlite
+    curl
+  )
+
+  $maysudo "$pacman" -Syu --needed --noconfirm "${deps[@]}"
+  echo "Desktop native dependencies installed."
+  exit 0
+fi
+
+# macOS
+if [[ "$(uname)" == "Darwin" ]]; then
+  if ! xcode-select -p &> /dev/null; then
+    echo "Installing Xcode Command Line Tools..."
+    xcode-select --install
+    echo "Re-run this script after the Xcode install completes."
+    exit 0
+  fi
+
+  echo "Desktop native dependencies installed."
+  exit 0
+fi
+
+echo "Unsupported platform. See apps/desktop/README.md for manual setup instructions."
+exit 1

apps/desktop/script/setup.ps1

@@ -0,0 +1,27 @@
+# Installs the native build tools GPUI needs to compile on Windows.
+# Run script/setup-rust.ps1 first if you don't have Rust installed yet.
+
+$ErrorActionPreference = "Stop"
+
+function Check-VSBuildTools {
+  $vswhere = "C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe"
+
+  if (-not (Test-Path $vswhere)) {
+    return $false
+  }
+
+  $result = & $vswhere -latest -requires Microsoft.VisualStudio.Workload.NativeDesktop -property installationPath
+  return $result -and $result.Trim().Length -gt 0
+}
+
+if (-not (Check-VSBuildTools)) {
+  Write-Output ""
+  Write-Output "Visual Studio Build Tools with 'Desktop development with C++' not found."
+  Write-Output ""
+  Write-Output "Install it from: https://visualstudio.microsoft.com/visual-cpp-build-tools/"
+  Write-Output "Check the 'Desktop development with C++' workload during setup, then re-run this script."
+  Write-Output ""
+  exit 1
+}
+
+Write-Output "Desktop native dependencies ready."

apps/desktop/src/main.rs

@@ -0,0 +1,41 @@
+use gpui::{
+    App, Application, Bounds, Context, SharedString, Window, WindowBounds, WindowOptions, div,
+    prelude::*, px, rgb, size,
+};
+
+struct AppWindow {
+    title: SharedString,
+}
+
+impl Render for AppWindow {
+    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
+        div()
+            .size_full()
+            .bg(rgb(0x0f0f0f))
+            .flex()
+            .justify_center()
+            .items_center()
+            .text_xl()
+            .text_color(rgb(0xffffff))
+            .child(self.title.clone())
+    }
+}
+
+fn main() {
+    Application::new().run(|cx: &mut App| {
+        let bounds = Bounds::centered(None, size(px(1280.), px(720.)), cx);
+        cx.open_window(
+            WindowOptions {
+                window_bounds: Some(WindowBounds::Windowed(bounds)),
+                ..Default::default()
+            },
+            |_, cx| {
+                cx.new(|_| AppWindow {
+                    title: "OpenCut".into(),
+                })
+            },
+        )
+        .unwrap();
+        cx.activate(true);
+    });
+}