diff --git a/src/main.rs b/src/main.rs
index cd0c95d..7aa547e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,12 +2,14 @@ use std::collections::HashMap;
 use std::error::Error;
 use std::net::SocketAddr;
 use std::path::PathBuf;
+use std::thread;
+use std::time;
 
 use google_api_auth;
 use google_photoslibrary1 as photos;
 use hexihasher;
 use lazy_static::lazy_static;
-use log::{debug, info};
+use log::{debug, error, info};
 use photos::schemas::{Album, MediaItem, SearchMediaItemsRequest};
 use regex::Regex;
 use structopt::StructOpt;
@@ -16,6 +18,31 @@ use yup_oauth2::{Authenticator, InstalledFlow};
 use photosync::library::Library;
 use photosync::web;
 
+fn parse_duration(src: &str) -> Result<time::Duration, std::num::ParseIntError> {
+    let secs = str::parse::<u64>(src)?;
+    Ok(time::Duration::from_secs(secs))
+}
+
+#[derive(Debug, StructOpt)]
+struct Sync {
+    #[structopt(flatten)]
+    auth: Auth,
+    /// Optional album title to filter.  Default will mirror all albums.
+    #[structopt(short, long)]
+    title_filter: Option<Regex>,
+    /// Directory to store sync.
+    root: PathBuf,
+}
+
+#[derive(Debug, StructOpt)]
+struct Serve {
+    /// Directory of data fetched by `sync`.
+    root: PathBuf,
+    /// HTTP address to listen for web requests.
+    #[structopt(long = "addr", default_value = "0.0.0.0:0")]
+    addr: SocketAddr,
+}
+
 #[derive(Debug, StructOpt)]
 enum Command {
     /// List albums for the user of the given credentials.  Optionally title filter.
@@ -31,16 +58,19 @@ enum Command {
     },
     Sync {
         #[structopt(flatten)]
-        auth: Auth,
-        /// Optional album title to filter.  Default will mirror all albums.
-        #[structopt(short, long)]
-        title_filter: Option<Regex>,
-        /// Directory to store sync.
-        output: PathBuf,
+        sync: Sync,
     },
     Serve {
-        /// Directory of data fetched by `sync`.
-        root: PathBuf,
+        #[structopt(flatten)]
+        serve: Serve,
+    },
+    ServeAndSync {
+        /// Sync albums at given interval.
+        #[structopt(parse(try_from_str = parse_duration))]
+        interval: time::Duration,
+
+        #[structopt(flatten)]
+        sync: Sync,
         /// HTTP address to listen for web requests.
         #[structopt(long = "addr", default_value = "0.0.0.0:0")]
         addr: SocketAddr,
@@ -192,10 +222,9 @@ lazy_static! {
 
 fn sync_albums(
     client: &photos::Client,
-    title_filter: Option<Regex>,
-    output_dir: PathBuf,
+    title_filter: &Option<Regex>,
+    lib: &Library,
 ) -> Result<(), Box<dyn Error>> {
-    let lib = Library::new(output_dir)?;
     let albums = list_albums(client, title_filter)?;
     info!("albums {:?}", albums);
     lib.create_album_index(&albums)?;
@@ -236,12 +265,18 @@ fn print_albums(albums: Vec<Album>) {
 
 fn list_albums(
     client: &photos::Client,
-    title_filter: Option<Regex>,
+    title_filter: &Option<Regex>,
 ) -> Result<Vec<Album>, Box<dyn Error>> {
     Ok(client
-        .shared_albums()
+        .albums()
         .list()
-        .iter_shared_albums_with_all_fields()
+        .iter_albums_with_all_fields()
+        .chain(
+            client
+                .shared_albums()
+                .list()
+                .iter_shared_albums_with_all_fields(),
+        )
         .filter_map(|a| a.ok())
         .filter(|a| {
             match (&title_filter, &a.title) {
@@ -258,8 +293,23 @@ fn list_albums(
         .collect())
 }
 
-pub fn serve(addr: SocketAddr, root: PathBuf) -> Result<(), Box<dyn Error>> {
-    web::run(addr, root)
+fn background_sync(
+    client: photos::Client,
+    interval: time::Duration,
+    title_filter: Option<Regex>,
+    lib: Library,
+) -> Result<(), Box<dyn Error>> {
+    thread::spawn(move || loop {
+        if let Err(err) = sync_albums(&client, &title_filter, &lib) {
+            error!("Error syncing: {}", err);
+        }
+        thread::sleep(interval);
+    });
+    Ok(())
+}
+
+pub fn serve(addr: SocketAddr, lib: Library) -> Result<(), Box<dyn Error>> {
+    web::run(addr, lib)
 }
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
@@ -273,7 +323,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     match opt.cmd {
         Command::ListAlbums { auth, title_filter } => {
             let client = new_client(&auth.credentials, &auth.token_cache)?;
-            print_albums(list_albums(&client, title_filter)?);
+            print_albums(list_albums(&client, &title_filter)?);
             Ok(())
         }
         Command::SearchMediaItems { auth, album_id } => {
@@ -282,14 +332,39 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             Ok(())
         }
         Command::Sync {
-            auth,
-            title_filter,
-            output,
+            sync:
+                Sync {
+                    auth,
+                    title_filter,
+                    root,
+                },
         } => {
             let client = new_client(&auth.credentials, &auth.token_cache)?;
-            sync_albums(&client, title_filter, output)?;
+            let lib = Library::new(root)?;
+            sync_albums(&client, &title_filter, &lib)?;
+            Ok(())
+        }
+        Command::Serve {
+            serve: Serve { addr, root },
+        } => {
+            let lib = Library::new(root)?;
+            serve(addr, lib)
+        }
+        Command::ServeAndSync {
+            interval,
+            sync:
+                Sync {
+                    auth,
+                    title_filter,
+                    root,
+                },
+            addr,
+        } => {
+            let client = new_client(&auth.credentials, &auth.token_cache)?;
+            let lib = Library::new(root)?;
+            background_sync(client, interval, title_filter, lib.clone())?;
+            serve(addr, lib)?;
             Ok(())
         }
-        Command::Serve { addr, root } => serve(addr, root),
     }
 }
diff --git a/src/web.rs b/src/web.rs
index ffb600e..385e922 100644
--- a/src/web.rs
+++ b/src/web.rs
@@ -1,6 +1,5 @@
 use std::error::Error;
 use std::net::SocketAddr;
-use std::path::PathBuf;
 
 use log::warn;
 use prometheus::Encoder;
@@ -98,11 +97,10 @@ fn image(
 }
 
 #[derive(RustEmbed)]
-#[folder = "react-debug/build/"]
+#[folder = "react-slideshow/build/"]
 struct Asset;
 
-pub fn run(addr: SocketAddr, root: PathBuf) -> Result<(), Box<dyn Error>> {
-    let lib = Library::new(root)?;
+pub fn run(addr: SocketAddr, lib: Library) -> Result<(), Box<dyn Error>> {
     let lib = warp::any().map(move || lib.clone());
 
     let index = warp::get2().and(warp::path::full()).and_then(index);