diff --git a/crates/molotov-cli/src/commands.rs b/crates/molotov-cli/src/commands.rs
index 2624341..556f8b8 100644
--- a/crates/molotov-cli/src/commands.rs
+++ b/crates/molotov-cli/src/commands.rs
@@ -16,6 +16,8 @@ pub enum Commands {
         place_id: Option<u64>,
         #[arg(long)]
         safe_mode: bool,
+        #[arg(short, long)]
+        region: Option<String>,
     },
     /// Check for and download the latest Roblox version
     Update,
diff --git a/crates/molotov-cli/src/lib.rs b/crates/molotov-cli/src/lib.rs
index 1874129..f72d4ec 100644
--- a/crates/molotov-cli/src/lib.rs
+++ b/crates/molotov-cli/src/lib.rs
@@ -3,8 +3,12 @@ pub mod commands;
 use clap::Parser;
 use commands::{Cli, Commands};
 use molotov_bootstrap::cdn::CdnClient;
+use molotov_bootstrap::cleaner::Cleaner;
 use molotov_bootstrap::fflags::FastFlagManager;
+use molotov_bootstrap::launcher::{LaunchOptions, Launcher};
+use molotov_bootstrap::region::ServerRegion;
 use molotov_bootstrap::sandbox::SandboxRunner;
+use std::path::PathBuf;
 
 pub fn run(args: &[String]) {
     let mut full_args = vec!["molotov".to_string()];
@@ -18,12 +22,45 @@ pub fn run(args: &[String]) {
         }
     };
 
+    let home = std::env::var("HOME").unwrap_or_else(|_| "/tmp".to_string());
+    let base_dir = PathBuf::from(&home).join(".local/share/molotov");
+    let downloads_dir = PathBuf::from(&home).join(".cache/molotov/downloads");
+    let versions_dir = base_dir.join("versions");
+
     match cli.command {
-        Some(Commands::Launch { place_id, safe_mode }) => {
-            println!("🚀 Preparing Molotov launch (Place: {:?}, Safe Mode: {})...", place_id, safe_mode);
+        Some(Commands::Launch { place_id, safe_mode, region }) => {
+            let s_region = region
+                .as_deref()
+                .map(ServerRegion::from_code)
+                .unwrap_or(ServerRegion::Auto);
+
+            println!("🚀 Preparing Molotov launch...");
+            println!("   • Target Place ID: {:?}", place_id);
+            println!("   • Safe Mode: {}", safe_mode);
+            println!("   • Preferred Server Region: {}", s_region.display_name());
+
             if let Err(e) = SandboxRunner::check_bwrap_installed() {
                 eprintln!("⚠️ Warning: {}", e);
             }
+
+            let launcher = Launcher::new(base_dir);
+            let options = LaunchOptions {
+                place_id,
+                safe_mode,
+                region: s_region,
+                instance_id: "default".to_string(),
+            };
+
+            match launcher.prepare_launch(options) {
+                Ok(plan) => {
+                    println!("✅ Launch plan prepared successfully.");
+                    println!("   • FastFlags configured at: {}", plan.fflags_path.display());
+                    println!("   • Sandbox isolation: Instance '{}'", plan.sandbox_config.instance_id);
+                }
+                Err(e) => {
+                    eprintln!("❌ Failed to prepare launch plan: {}", e);
+                }
+            }
         }
         Some(Commands::Update) => {
             println!("🔄 Checking Roblox CDN for client updates...");
@@ -62,6 +99,18 @@ pub fn run(args: &[String]) {
         }
         Some(Commands::Clean) => {
             println!("🧹 Cleaning old versions and temporary cache...");
+            let cleaner = Cleaner::new(versions_dir, downloads_dir);
+            match cleaner.clean_stale_data("active") {
+                Ok(report) => {
+                    println!("✅ Cleaning complete:");
+                    println!("   • Purged old version directories: {}", report.purged_versions.len());
+                    println!("   • Purged leftover download fragments: {}", report.purged_parts_count);
+                    println!("   • Total disk space reclaimed: {:.2} MB", (report.reclaimed_bytes as f64) / (1024.0 * 1024.0));
+                }
+                Err(e) => {
+                    eprintln!("❌ Cleaning failed: {}", e);
+                }
+            }
         }
         Some(Commands::Diagnostics) => {
             println!("🩺 System diagnostics: checking bubblewrap sandbox status...");
diff --git a/crates/molotov-cli/tests/cli_test.rs b/crates/molotov-cli/tests/cli_test.rs
index 6ae7db4..db3fa70 100644
--- a/crates/molotov-cli/tests/cli_test.rs
+++ b/crates/molotov-cli/tests/cli_test.rs
@@ -8,6 +8,12 @@ fn test_cli_parse_launch_place() {
     assert!(parsed.is_ok());
 }
 
+#[test]
+fn test_cli_parse_region_flag() {
+    let parsed = Cli::try_parse_from(["molotov", "launch", "--region", "eu"]);
+    assert!(parsed.is_ok());
+}
+
 #[test]
 fn test_cli_parse_clean_command() {
     let parsed = Cli::try_parse_from(["molotov", "clean"]);
diff --git a/crates/molotov-gui/src/app.rs b/crates/molotov-gui/src/app.rs
index 46591b8..0c0e0a0 100644
--- a/crates/molotov-gui/src/app.rs
+++ b/crates/molotov-gui/src/app.rs
@@ -1,5 +1,9 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 use eframe::egui;
+use molotov_bootstrap::cleaner::Cleaner;
+use molotov_bootstrap::launcher::{LaunchOptions, Launcher};
+use molotov_bootstrap::region::ServerRegion;
+use std::path::PathBuf;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Tab {
@@ -16,6 +20,9 @@ pub struct MolotovApp {
     pub safe_mode: bool,
     pub fps_cap: i64,
     pub vram_skip_mips: bool,
+    pub region: ServerRegion,
+    pub discord_rpc: bool,
+    pub status_message: String,
 }
 
 impl Default for MolotovApp {
@@ -25,6 +32,9 @@ impl Default for MolotovApp {
             safe_mode: false,
             fps_cap: 144,
             vram_skip_mips: false,
+            region: ServerRegion::Auto,
+            discord_rpc: true,
+            status_message: "Ready to launch".to_string(),
         }
     }
 }
@@ -40,6 +50,14 @@ impl MolotovApp {
             Tab::Maintenance => "Maintenance",
         }
     }
+
+    fn get_paths() -> (PathBuf, PathBuf, PathBuf) {
+        let home = std::env::var("HOME").unwrap_or_else(|_| "/tmp".to_string());
+        let base_dir = PathBuf::from(&home).join(".local/share/molotov");
+        let downloads_dir = PathBuf::from(&home).join(".cache/molotov/downloads");
+        let versions_dir = base_dir.join("versions");
+        (base_dir, downloads_dir, versions_dir)
+    }
 }
 
 impl eframe::App for MolotovApp {
@@ -58,9 +76,44 @@ impl eframe::App for MolotovApp {
         egui::CentralPanel::default().show(ctx, |ui| match self.current_tab {
             Tab::Play => {
                 ui.heading("Molotov Roblox Runtime");
+                ui.label(format!("Status: {}", self.status_message));
+                ui.separator();
+
                 ui.checkbox(&mut self.safe_mode, "Safe Mode (Minimal Flags)");
+
+                ui.horizontal(|ui| {
+                    ui.label("Preferred Server Region:");
+                    egui::ComboBox::from_id_salt("region_combo")
+                        .selected_text(self.region.display_name())
+                        .show_ui(ui, |ui| {
+                            ui.selectable_value(&mut self.region, ServerRegion::Auto, "Auto / Default");
+                            ui.selectable_value(&mut self.region, ServerRegion::USEast, "US East (Virginia)");
+                            ui.selectable_value(&mut self.region, ServerRegion::USWest, "US West (California)");
+                            ui.selectable_value(&mut self.region, ServerRegion::Europe, "Europe (Frankfurt / London)");
+                            ui.selectable_value(&mut self.region, ServerRegion::Asia, "Asia (Tokyo / Singapore)");
+                            ui.selectable_value(&mut self.region, ServerRegion::Australia, "Australia (Sydney)");
+                        });
+                });
+
+                ui.add_space(10.0);
                 if ui.button("🚀 Launch Roblox").clicked() {
-                    println!("Launch clicked!");
+                    let (base_dir, _, _) = Self::get_paths();
+                    let launcher = Launcher::new(base_dir);
+                    let options = LaunchOptions {
+                        place_id: None,
+                        safe_mode: self.safe_mode,
+                        region: self.region,
+                        instance_id: "default".to_string(),
+                    };
+
+                    match launcher.prepare_launch(options) {
+                        Ok(plan) => {
+                            self.status_message = format!("Launch plan prepared! Safe Mode: {}", plan.is_safe_mode);
+                        }
+                        Err(e) => {
+                            self.status_message = format!("Launch preparation failed: {}", e);
+                        }
+                    }
                 }
             }
             Tab::FastFlags => {
@@ -82,8 +135,21 @@ impl eframe::App for MolotovApp {
             }
             Tab::Maintenance => {
                 ui.heading("Maintenance & Cleaning");
+                ui.checkbox(&mut self.discord_rpc, "Enable Discord Rich Presence (RPC)");
+
+                ui.add_space(10.0);
                 if ui.button("Clean Stale Versions").clicked() {
-                    println!("Clean clicked!");
+                    let (_, downloads_dir, versions_dir) = Self::get_paths();
+                    let cleaner = Cleaner::new(versions_dir, downloads_dir);
+                    match cleaner.clean_stale_data("active") {
+                        Ok(report) => {
+                            let mb = (report.reclaimed_bytes as f64) / (1024.0 * 1024.0);
+                            self.status_message = format!("Cleaned {} old versions, reclaimed {:.2} MB", report.purged_versions.len(), mb);
+                        }
+                        Err(e) => {
+                            self.status_message = format!("Clean failed: {}", e);
+                        }
+                    }
                 }
             }
         });