diff --git a/R/utils.R b/R/utils.R
index df962e8f..57b9053a 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -191,7 +191,5 @@ app_container <- function(url, deps = FALSE, skin, color = NULL, landscape = FAL
     } else {
       device_tag
     }
-  } else {
-    NULL
   }
 }
diff --git a/README.md b/README.md
index 254dd53d..7f53b6a9 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 > Develop outstanding {shiny} apps for iOS, Android, desktop as well as beautiful {shiny} gadgets. {shinyMobile} is built on top of the latest [Framework7](https://framework7.io) template.
 
 [![R build status](https://github.com/RinteRface/shinyMobile/workflows/R-CMD-check/badge.svg)](https://github.com/RinteRface/shinyMobile/actions)
-[![lifecycle](https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg)](https://www.tidyverse.org/lifecycle/#maturing)
+[![lifecycle](https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg)](https://lifecycle.r-lib.org/articles/stages.html)
 [![CRAN status](https://www.r-pkg.org/badges/version/shinyMobile)](https://cran.r-project.org/package=shinyMobile)
 
 
diff --git a/docs/articles/Single-Layout.html b/docs/articles/Single-Layout.html
index 90b4f447..e89c02cc 100644
--- a/docs/articles/Single-Layout.html
+++ b/docs/articles/Single-Layout.html
@@ -133,7 +133,7 @@ <h4 class="date">2021-07-22</h4>
     
     
 <p><a href="https://github.com/RinteRface/shinyMobile">shinyMobile</a> comes with 3 predefined layouts. <code><a href="../reference/f7SingleLayout.html">f7SingleLayout()</a></code> is dedicated to build simple, one-page apps or gadgets.</p>
-<link rel="stylesheet" href="/private/var/folders/lr/cb85_7yn3fv4q92hyc0yzmxc0000gn/T/RtmphCb3bk/temp_libpathedcb26dfb612/shinyMobile/marvel-devices-css-1.0.0/devices.min.css" type="text/css">
+<link rel="stylesheet" href="/private/var/folders/lr/cb85_7yn3fv4q92hyc0yzmxc0000gn/T/RtmpsY33BF/temp_libpath17b711cd86c48/shinyMobile/marvel-devices-css-1.0.0/devices.min.css" type="text/css">
 <div class="marvel-device iphone8">
 <div class="top-bar"></div>
 <div class="sleep"></div>
diff --git a/docs/articles/Split-Layout.html b/docs/articles/Split-Layout.html
index 5a7f985a..21e5ce31 100644
--- a/docs/articles/Split-Layout.html
+++ b/docs/articles/Split-Layout.html
@@ -146,7 +146,7 @@ <h4 class="date">2021-07-22</h4>
   style <span class="op">=</span> <span class="st">"reveal"</span>
 <span class="op">)</span></code></pre></div>
 <p>The content must be passed in <code>...</code> If you have a menu in the sidebar, you must use the corresponding body function, namely <code><a href="../reference/f7Items.html">f7Items()</a></code> and <code><a href="../reference/f7Item.html">f7Item()</a></code>. Particularly, the <em>tabName</em> argument provided in <code><a href="../reference/f7PanelMenu.html">f7PanelItem()</a></code> and <code><a href="../reference/f7Item.html">f7Item()</a></code> must exactly match (like in <a href="http://rstudio.github.io/shinydashboard/">shinydashboard</a>, again). If you don’t have any <code><a href="../reference/f7PanelMenu.html">f7PanelMenu()</a></code>, you can pass tags in the <code>...</code> directly. However, this prevents you from having a tabbed navigation.</p>
-<link rel="stylesheet" href="/private/var/folders/lr/cb85_7yn3fv4q92hyc0yzmxc0000gn/T/RtmphCb3bk/temp_libpathedcb26dfb612/shinyMobile/marvel-devices-css-1.0.0/devices.min.css" type="text/css">
+<link rel="stylesheet" href="/private/var/folders/lr/cb85_7yn3fv4q92hyc0yzmxc0000gn/T/RtmpsY33BF/temp_libpath17b711cd86c48/shinyMobile/marvel-devices-css-1.0.0/devices.min.css" type="text/css">
 <div class="marvel-device black ipad">
 <div class="camera"></div>
 <div class="screen">
diff --git a/docs/articles/Tabs-Layout.html b/docs/articles/Tabs-Layout.html
index ac880bb7..8e35f898 100644
--- a/docs/articles/Tabs-Layout.html
+++ b/docs/articles/Tabs-Layout.html
@@ -133,7 +133,7 @@ <h4 class="date">2021-07-22</h4>
     
     
 <p>The second layout is the <code><a href="../reference/f7TabLayout.html">f7TabLayout()</a></code>, very similar to that of <a href="https://github.com/rstudio/miniUI">miniUI</a>.</p>
-<link rel="stylesheet" href="/private/var/folders/lr/cb85_7yn3fv4q92hyc0yzmxc0000gn/T/RtmphCb3bk/temp_libpathedcb26dfb612/shinyMobile/marvel-devices-css-1.0.0/devices.min.css" type="text/css">
+<link rel="stylesheet" href="/private/var/folders/lr/cb85_7yn3fv4q92hyc0yzmxc0000gn/T/RtmpsY33BF/temp_libpath17b711cd86c48/shinyMobile/marvel-devices-css-1.0.0/devices.min.css" type="text/css">
 <div class="marvel-device iphone8">
 <div class="top-bar"></div>
 <div class="sleep"></div>
diff --git a/docs/index.html b/docs/index.html
index 73d877c8..dd4a748a 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -132,7 +132,7 @@
 <blockquote>
 <p>Develop outstanding {shiny} apps for iOS, Android, desktop as well as beautiful {shiny} gadgets. {shinyMobile} is built on top of the latest <a href="https://framework7.io">Framework7</a> template.</p>
 </blockquote>
-<p><a href="https://github.com/RinteRface/shinyMobile/actions"><img src="https://github.com/RinteRface/shinyMobile/workflows/R-CMD-check/badge.svg" alt="R build status"></a> <a href="https://www.tidyverse.org/lifecycle/#maturing"><img src="https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg" alt="lifecycle"></a> <a href="https://www.repostatus.org/#wip"><img src="https://www.repostatus.org/badges/latest/wip.svg" alt="Project Status"></a> <a href="https://cran.r-project.org/package=shinyMobile"><img src="https://www.r-pkg.org/badges/version/shinyMobile" alt="CRAN status"></a></p>
+<p><a href="https://github.com/RinteRface/shinyMobile/actions"><img src="https://github.com/RinteRface/shinyMobile/workflows/R-CMD-check/badge.svg" alt="R build status"></a> <a href="https://lifecycle.r-lib.org/articles/stages.html"><img src="https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg" alt="lifecycle"></a> <a href="https://www.repostatus.org/#wip"><img src="https://www.repostatus.org/badges/latest/wip.svg" alt="Project Status"></a> <a href="https://cran.r-project.org/package=shinyMobile"><img src="https://www.r-pkg.org/badges/version/shinyMobile" alt="CRAN status"></a></p>
 <div id="installation" class="section level2">
 <h2 class="hasAnchor">
 <a href="#installation" class="anchor"></a>Installation</h2>
diff --git a/docs/pkgdown.yml b/docs/pkgdown.yml
index 0930c033..ce849662 100644
--- a/docs/pkgdown.yml
+++ b/docs/pkgdown.yml
@@ -8,5 +8,5 @@ articles:
   Tabs-Layout: Tabs-Layout.html
   shinyMobile: shinyMobile.html
   shinyMobile_tools: shinyMobile_tools.html
-last_built: 2021-07-22T13:02Z
+last_built: 2021-07-22T14:22Z
 
diff --git a/index.Rmd b/index.Rmd
index fee96e7b..adf76f33 100644
--- a/index.Rmd
+++ b/index.Rmd
@@ -13,7 +13,7 @@ knitr::opts_chunk$set(echo = TRUE)
 {shinyMobile} is built on top of the latest [Framework7](https://framework7.io) template.
 
 [![R build status](https://github.com/RinteRface/shinyMobile/workflows/R-CMD-check/badge.svg)](https://github.com/RinteRface/shinyMobile/actions)
-[![lifecycle](https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg)](https://www.tidyverse.org/lifecycle/#maturing)
+[![lifecycle](https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg)](https://lifecycle.r-lib.org/articles/stages.html)
 [![Project Status](https://www.repostatus.org/badges/latest/wip.svg)](https://www.repostatus.org/#wip)
 [![CRAN status](https://www.r-pkg.org/badges/version/shinyMobile)](https://cran.r-project.org/package=shinyMobile)
 
diff --git a/index.md b/index.md
index c49dba00..9dab0dae 100644
--- a/index.md
+++ b/index.md
@@ -7,7 +7,7 @@
 
 [![R build
 status](https://github.com/RinteRface/shinyMobile/workflows/R-CMD-check/badge.svg)](https://github.com/RinteRface/shinyMobile/actions)
-[![lifecycle](https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg)](https://www.tidyverse.org/lifecycle/#maturing)
+[![lifecycle](https://img.shields.io/badge/lifecycle-maturing-ff69b4.svg)](https://lifecycle.r-lib.org/articles/stages.html)
 [![Project
 Status](https://www.repostatus.org/badges/latest/wip.svg)](https://www.repostatus.org/#wip)
 [![CRAN