diff --git a/Gemfile b/Gemfile
index a2db75a..80d688c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,9 +10,9 @@ gem 'angular_rails_csrf'
 gem 'haml'
 
 source 'https://rails-assets.org' do
-  gem 'rails-assets-angular'
-  gem 'rails-assets-angular-route'
-  gem 'rails-assets-lazysizes'
+  gem 'rails-assets-angular', '1.4.5'
+  gem 'rails-assets-angular-route', '1.4.5'
+  gem 'rails-assets-lazysizes', '4.0.4'
 end
 
 gem 'uglifier', '>= 1.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 3d301d7..08f38dc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -80,7 +80,7 @@ GEM
     erubis (2.7.0)
     eventmachine (1.0.9)
     execjs (2.7.0)
-    ffi (1.9.10)
+    ffi (1.9.25)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
     haml (5.0.4)
@@ -132,7 +132,7 @@ GEM
     rails-assets-angular (1.4.5)
     rails-assets-angular-route (1.4.5)
       rails-assets-angular (= 1.4.5)
-    rails-assets-lazysizes (1.3.2)
+    rails-assets-lazysizes (4.0.4)
     rails-deprecated_sanitizer (1.0.3)
       activesupport (>= 4.2.0.alpha)
     rails-dom-testing (1.0.9)
@@ -231,9 +231,9 @@ DEPENDENCIES
   pi_piper
   quiet_assets
   rails (~> 4.2)
-  rails-assets-angular!
-  rails-assets-angular-route!
-  rails-assets-lazysizes!
+  rails-assets-angular (= 1.4.5)!
+  rails-assets-angular-route (= 1.4.5)!
+  rails-assets-lazysizes (= 4.0.4)!
   rspec-rails
   rubocop
   simplecov
diff --git a/config/initializers/gpio.rb b/config/initializers/gpio.rb
index 40e4364..34d0500 100644
--- a/config/initializers/gpio.rb
+++ b/config/initializers/gpio.rb
@@ -1,10 +1,15 @@
 # rubocop:disable Output
+# rubocop:disable Lint/RescueException
 begin
+  $VERBOSE = nil
   require 'pi_piper'
   GpioPort.on(GpioPort::GPIO_PORTS['READY'])
   puts '*** Running with gpio support'
-rescue StandardError
+rescue Exception
   Object.send(:remove_const, :PiPiper)
   puts '*** Running without gpio support'
+ensure
+  $VERBOSE = false
 end
 # rubocop:enable Output
+# rubocop:enable Lint/RescueException
diff --git a/config/unicorn.rb b/config/unicorn.rb
index 9c5d464..f5c7a11 100644
--- a/config/unicorn.rb
+++ b/config/unicorn.rb
@@ -1,4 +1,5 @@
 worker_processes 3
 timeout 60
 preload_app true
-listen '0.0.0.0:3000', tcp_nopush: true
+
+# listen '0.0.0.0', tcp_nopush: true
diff --git a/lib/tasks/picture_set.rake b/lib/tasks/picture_set.rake
new file mode 100644
index 0000000..d9de44d
--- /dev/null
+++ b/lib/tasks/picture_set.rake
@@ -0,0 +1,67 @@
+require 'fileutils'
+
+# rubocop:disable Metrics/BlockLength
+namespace :picture_set do
+  COMBINED_SUFFIX = '_combined.jpg'.freeze
+
+  desc 'Combine all images into one'
+  task :combine_images, [:path] => [:environment] do |_task, args|
+    path = args[:path]
+    path = Rails.root.join('public', 'picture_sets') if path.blank?
+    puts "Using directory #{path}."
+    Dir.chdir(path) do
+      picture_sets = Dir.glob('*').select { |f| File.directory? f }
+      picture_sets.each do |date|
+        puts "Processing #{date}..."
+        combine_images(date, path)
+      end
+    end
+  end
+
+  desc 'Remove combined images. Necessary before running combine_images task again.'
+  task :clean_combine_images, [:path] => [:environment] do |_task, args|
+    path = args[:path]
+    path = Rails.root.join('public', 'picture_sets') if path.blank?
+    puts "Using directory #{path}."
+    Dir.chdir(path) do
+      picture_sets = Dir.glob('*').select { |f| File.directory? f }
+      picture_sets.each do |date|
+        Dir.chdir(File.join(path, date)) do
+          FileUtils.rm("#{date}#{COMBINED_SUFFIX}", force: true)
+        end
+      end
+    end
+  end
+
+  desc 'Copies all images into one directory (without the single polaroids)'
+  task :copy, %i[path output] => [:environment] do |_task, args|
+    path = args[:path]
+    path = Rails.root.join('public', 'picture_sets') if path.blank?
+    puts "Using directory #{path}."
+    Dir.chdir(path) do
+      picture_sets = Dir.glob('*').select { |f| File.directory?(f) && f != 'all' }
+      picture_sets.each do |date|
+        begin
+          Syscall.execute("cp #{File.join(path, date, '*.jpg')} #{args[:output]}")
+          Syscall.execute("cp #{File.join(path, date, '*.gif')} #{args[:output]}")
+        rescue StandardError => e
+          puts e
+        end
+      end
+    end
+  end
+
+  def combine_images(date, path)
+    dir = File.join(path, date)
+    return if File.exist?(File.join(dir, "#{date}#{COMBINED_SUFFIX}"))
+    begin
+      Syscall.execute("time montage -geometry '25%x25%+25+25<' -background '#{OPTS.background_color}' " \
+        "-title '#{OPTS.image_caption}' -font '#{OPTS.font}' -fill '#{OPTS.font_color}' " \
+        "-pointsize #{OPTS.combined_image_fontsize} -gravity 'Center' #{date}_*.jpg #{date}#{COMBINED_SUFFIX}",
+                      dir: dir)
+    rescue StandardError => e
+      puts "Can not process #{dir}: #{e}"
+    end
+  end
+end
+# rubocop:enable Metrics/BlockLength