diff --git a/flake.lock b/flake.lock
index b32421f..c4e94fa 100644
--- a/flake.lock
+++ b/flake.lock
@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1689068808,
-        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
+        "lastModified": 1701680307,
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
         "type": "github"
       },
       "original": {
@@ -35,16 +35,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1690370995,
-        "narHash": "sha256-9z//23jGegLJrf3ITStLwVf715O39dq5u48Kr/XW14U=",
+        "lastModified": 1703467016,
+        "narHash": "sha256-/5A/dNPhbQx/Oa2d+Get174eNI3LERQ7u6WTWOlR1eQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f3fbbc36b4e179a5985b9ab12624e9dfe7989341",
+        "rev": "d02d818f22c777aa4e854efc3242ec451e5d462a",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "type": "indirect"
       }
     },
@@ -63,11 +63,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1675083208,
-        "narHash": "sha256-+sSFhSpV2jckr1qYlX/SaxQ6IdpagD6o4rru/3HAl0I=",
+        "lastModified": 1698464090,
+        "narHash": "sha256-Pnej7WZIPomYWg8f/CZ65sfW85IfIUjYhphMMg7/LT0=",
         "owner": "zaninime",
         "repo": "sbt-derivation",
-        "rev": "92d6d6d825e3f6ae5642d1cce8ff571c3368aaf7",
+        "rev": "6762cf2c31de50efd9ff905cbcc87239995a4ef9",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index dcc14da..2840d83 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,140 +1,150 @@
 {
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-23.05";    
+    nixpkgs.url = "nixpkgs/nixos-23.11";
     flake-utils.url = "github:numtide/flake-utils";
     sbt.url = "github:zaninime/sbt-derivation/master";
     # recommended for first style of usage documented below, but not necessary
     sbt.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = {
-    self,
-    nixpkgs,
-    sbt,
-    flake-utils,
-  }: 
-    flake-utils.lib.eachDefaultSystem (system: 
-    let
-      pkgs = import nixpkgs {
-        inherit system;
-      };
-    in {
-      packages.default = import ./package.nix { pkgs = pkgs; sbt = sbt; self = self; };
-      #checks.build = self.packages.default;
-    }
-  ) // {
+  outputs =
+    { self
+    , nixpkgs
+    , sbt
+    , flake-utils
+    ,
+    }:
+    flake-utils.lib.eachDefaultSystem
+      (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+      in
+      {
+        packages.default = import ./package.nix { pkgs = pkgs; sbt = sbt; self = self; };
+        #checks.build = self.packages.default;
+      }
+      ) // {
 
-    nixosModules.photoprism-slideshow = { lib, pkgs, config, ... }:
-    let
-      cfg = config.services.photoprism-slideshow;
-    in
-    {
-      options = with lib; {
-        services.photoprism-slideshow = {
-          enable = mkOption {
-            type = types.bool;
-            default = false;
-          };
+      nixosModules.photoprism-slideshow = { lib, pkgs, config, ... }:
+        let
+          cfg = config.services.photoprism-slideshow;
+        in
+        {
+          options = with lib; {
+            services.photoprism-slideshow = {
+              enable = mkOption {
+                type = types.bool;
+                default = false;
+              };
 
-          preload = mkOption {
-            type = types.bool;
-            default = false;
-          };
+              preload = mkOption {
+                type = types.bool;
+                default = false;
+              };
 
-          port = mkOption {
-            type = types.int;
-            default = 23234;
-          };
+              port = mkOption {
+                type = types.int;
+                default = 23234;
+              };
+
+              database = mkOption {
+                type = types.str;
+                default = "/var/lib/photoprism/index.db";
+              };
+
+              basePath = mkOption {
+                type = types.str;
+                default = "/slideshow";
+              };
 
-          database = mkOption {
-            type = types.str;
-            default = "/var/lib/photoprism/index.db";
+              package = mkOption {
+                type = types.package;
+                default = self.outputs.packages."${pkgs.system}".default;
+              };
+
+              interval = mkOption {
+                type = types.int;
+                default = 10;
+              };
+            };
           };
 
-          basePath = mkOption {
-            type = types.str;
-            default = "/slideshow";
-          };              
+          config = with lib; mkIf cfg.enable {
 
-          package = mkOption {
-            type = types.package;
-            default = self.outputs.packages."${pkgs.system}".default;
-          };              
-        };
-      };
+            systemd.services.photoprism-slideshow-reload = mkIf cfg.preload {
+              enable = true;
+              startAt = "*-*-* 01:34:00";
+              script = ''
+                ${pkgs.systemd}/bin/systemctl restart photoprism-slideshow
+              '';
+            };
 
-      config = with lib; mkIf cfg.enable {
-      
-        systemd.services.photoprism-slideshow-reload = mkIf cfg.preload {
-          enable = true;
-          startAt = "*-*-* 01:34:00";
-          script = ''
-            ${pkgs.systemd}/bin/systemctl restart photoprism-slideshow
-          '';
-        };
-        
 
-        systemd.services.photoprism-slideshow = {
-          enable = true;
-          path = [ ];
-          preStart = if cfg.preload then ''
-            cd /var/cache/photoprism-slideshow
-            [ -e photoprism-slideshow.db ] && rm -- photoprism-slideshow.db
-            ${pkgs.sqlite}/bin/sqlite3 ${cfg.database} ".clone photoprism-slideshow.db"
-          '' else "";
-          environment = {
-            SERVER_PORT = toString cfg.port;
-            DATABASE = if cfg.preload then "/var/cache/photoprism-slideshow/photoprism-slideshow.db" else cfg.database;
-            BASE_PATH = cfg.basePath;
-          };
+            systemd.services.photoprism-slideshow = {
+              enable = true;
+              path = [ ];
+              preStart =
+                if cfg.preload then ''
+                  cd /var/cache/photoprism-slideshow
+                  [ -e photoprism-slideshow.db ] && rm -- photoprism-slideshow.db
+                  ${pkgs.sqlite}/bin/sqlite3 ${cfg.database} ".clone photoprism-slideshow.db"
+                '' else "";
+              environment = {
+                SERVER_PORT = toString cfg.port;
+                DATABASE = if cfg.preload then "/var/cache/photoprism-slideshow/photoprism-slideshow.db" else cfg.database;
+                BASE_PATH = cfg.basePath;
+                INTERVAL = toString cfg.interval;
+              };
 
-          script = ''
-           ${cfg.package}/bin/photoprism-slideshow
-          '';
-          wantedBy = [ "multi-user.target" ];
-          after = [ "network.target" ];
-          serviceConfig = {
-            DynamicUser = true;
-            Restart = "on-failure";
-            CacheDirectory = "photoprism-slideshow";
-            # Hardening
-            CapabilityBoundingSet = "";
-            DeviceAllow = "";
-            DevicePolicy = "closed";
-            LockPersonality = true;
-            MemoryDenyWriteExecute = false;
-            NoNewPrivileges = true;
-            PrivateDevices = true;
-            PrivateUsers = true;
-            PrivateTmp = true;
-            ProtectClock = true;
-            ProtectControlGroups = true;
-            ProtectHome = true;
-            ProtectHostname = true;
-            ProtectKernelLogs = true;
-            ProtectKernelModules = true;
-            ProtectKernelTunables = true;
-            ProtectProc = "invisible";
-            ProcSubset = "pid";
-            ProtectSystem = "strict";
-            RemoveIPC = true;
-            RestrictAddressFamilies = [
-              "AF_INET"
-              "AF_INET6"
-            ];
-            RestrictNamespaces = true;
-            RestrictRealtime = true;
-            RestrictSUIDSGID = true;
-            SupplementaryGroups = [];
-            SystemCallArchitectures = "native";
-            SystemCallFilter = [
-              "@system-service @pkey"
-              "~@privileged @resources"
-            ];
-            UMask = "0077";
+              script = ''
+                ${cfg.package}/bin/photoprism-slideshow
+              '';
+              wantedBy = [ "multi-user.target" ];
+              after = [ "network.target" ];
+              serviceConfig = {
+                DynamicUser = true;
+                Restart = "on-failure";
+                CacheDirectory = "photoprism-slideshow";
+                # Hardening
+                CapabilityBoundingSet = "";
+                DeviceAllow = "";
+                DevicePolicy = "closed";
+                LockPersonality = true;
+                MemoryDenyWriteExecute = false;
+                NoNewPrivileges = true;
+                PrivateDevices = true;
+                PrivateUsers = true;
+                PrivateTmp = true;
+                ProtectClock = true;
+                ProtectControlGroups = true;
+                ProtectHome = true;
+                ProtectHostname = true;
+                ProtectKernelLogs = true;
+                ProtectKernelModules = true;
+                ProtectKernelTunables = true;
+                ProtectProc = "invisible";
+                ProcSubset = "pid";
+                ProtectSystem = "strict";
+                RemoveIPC = true;
+                RestrictAddressFamilies = [
+                  "AF_INET"
+                  "AF_INET6"
+                ];
+                RestrictNamespaces = true;
+                RestrictRealtime = true;
+                RestrictSUIDSGID = true;
+                SupplementaryGroups = [ ];
+                SystemCallArchitectures = "native";
+                SystemCallFilter = [
+                  "@system-service @pkey"
+                  "~@privileged @resources"
+                ];
+                UMask = "0077";
+              };
+            };
           };
         };
-      };
     };
-  };
 }
diff --git a/package.nix b/package.nix
index f20ee20..feb50ab 100644
--- a/package.nix
+++ b/package.nix
@@ -4,7 +4,7 @@ sbt.lib.mkSbtDerivation {
   inherit pkgs;
 
   pname = "photoprism-slideshow";
-  version = "0.0.1";
+  version = "0.1.0";
 
   depsSha256 = "sha256-qwtUYKy51TFA/q/Yd2bwzrPSkA/Xjrsbb8ftQf/0PlM=";
   
diff --git a/src/main/scala/photoprism/slideshow/main.scala b/src/main/scala/photoprism/slideshow/main.scala
index 15f037f..b67c161 100644
--- a/src/main/scala/photoprism/slideshow/main.scala
+++ b/src/main/scala/photoprism/slideshow/main.scala
@@ -9,6 +9,7 @@ object PhotoprismSlideshowApp extends cask.MainRoutes{
 
   val db = scala.util.Properties.envOrElse("DATABASE", "./index.db")
   val basePath = scala.util.Properties.envOrElse("BASE_PATH", "")
+  val interval = scala.util.Properties.envOrElse("INTERVAL", "10").toInt
 
   val ds: javax.sql.DataSource = {
       val ds = org.sqlite.SQLiteDataSource()
@@ -57,7 +58,7 @@ object PhotoprismSlideshowApp extends cask.MainRoutes{
               )
             ),
             tag("script")(raw(s"""
-              var intervalID = window.setInterval(refreshImage, 10 * 1000);
+              var intervalID = window.setInterval(refreshImage, ${interval} * 1000);
 
               function refreshImage() {
                 fetch('./photo/random/' + location.hash.substr(1))
@@ -69,6 +70,7 @@ object PhotoprismSlideshowApp extends cask.MainRoutes{
 
                   // Examine the text in the response
                   response.json().then(function(data) {
+                    (new Image()).src = data.photo;
                     document.getElementById('title').innerText = data.title;
                     document.getElementsByTagName('title')[0].innerText = data.title;
                     document.getElementById('ts').innerText = data.taken_at;