diff --git a/templates/cpp-plasmoid/CMakeLists.txt b/templates/cpp-plasmoid/CMakeLists.txt
--- a/templates/cpp-plasmoid/CMakeLists.txt
+++ b/templates/cpp-plasmoid/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.0)
 
 project(plasma-%{APPNAMELC})
  
@@ -8,20 +8,18 @@
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
-include(ECMInstallIcons)
-include(ECMMarkAsTest)
-include(ECMMarkNonGuiExecutable)
 include(FeatureSummary)
-include(CheckIncludeFiles)
 
 find_package(KF5 REQUIRED COMPONENTS
     Plasma
     I18n
 )
 
-find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED COMPONENTS
+find_package(Qt5 CONFIG REQUIRED COMPONENTS
     Quick
     Core
 )
 
 add_subdirectory(src)
+
+feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
diff --git a/templates/cpp-plasmoid/Messages.sh b/templates/cpp-plasmoid/Messages.sh
--- a/templates/cpp-plasmoid/Messages.sh
+++ b/templates/cpp-plasmoid/Messages.sh
@@ -1,3 +1,2 @@
 #! /usr/bin/env bash
-$XGETTEXT `find . -name \*.qml` -o $podir/plasma_applet_%{APPNAMELC}.pot
-$XGETTEXT `find . -name \*.js -o -name \*.qml -o -name \*.cpp` -o $podir/plasma_applet_%{APPNAMELC}.pot
+$XGETTEXT `find . -name \*.js -o -name \*.qml -o -name \*.cpp` -o $podir/plasma_applet_org.kde.plasma.%{APPNAMELC}.pot
diff --git a/templates/cpp-plasmoid/README b/templates/cpp-plasmoid/README
--- a/templates/cpp-plasmoid/README
+++ b/templates/cpp-plasmoid/README
@@ -1,6 +1,23 @@
 Plasma Applet mixed C++/QML Template
 ----------------------
 
+-- Namespace adaption --
+
+Each Plasma plugin has a unique identifier, which is also used to find related
+resources (like the translation catalogs).
+To avoid naming collisions, Plasma plugins use a reverse domain name notation
+for that identifier:
+
+* org.kde.plasma.* - plugins coming from Plasma modules
+* org.kde.*        - plugins coming from other software from KDE
+* $(my.domain).*   - plugins of your 3rd-party
+
+The generated code uses the "org.kde.plasma" namespace for the plugin identifier.
+As this namespace is reserved for use by plugins part of Plasma modules, you will
+need to adapt this namespace if you are writing a plugin which is not intended to
+end up in the Plasma modules.
+
+
 -- Build instructions --
 
 cd /where/your/applet/is/generated
diff --git a/templates/cpp-plasmoid/src/CMakeLists.txt b/templates/cpp-plasmoid/src/CMakeLists.txt
--- a/templates/cpp-plasmoid/src/CMakeLists.txt
+++ b/templates/cpp-plasmoid/src/CMakeLists.txt
@@ -1,4 +1,5 @@
-add_definitions(-DTRANSLATION_DOMAIN=\"plasma_applet_org.kde.%{APPNAMELC}\")
+# TODO: adapt "org.kde.plasma" here & elsewhere if needed (see README)
+add_definitions(-DTRANSLATION_DOMAIN=\"plasma_applet_org.kde.plasma.%{APPNAMELC}\")
 
 set(%{APPNAMELC}_SRCS
     %{APPNAMELC}.cpp
@@ -16,4 +17,4 @@
 
 install(TARGETS plasma_applet_%{APPNAMELC} DESTINATION ${KDE_INSTALL_PLUGINDIR}/plasma/applets)
 
-plasma_install_package(package org.kde.%{APPNAMELC})
+plasma_install_package(package org.kde.plasma.%{APPNAMELC})
diff --git a/templates/cpp-plasmoid/src/package/metadata.desktop b/templates/cpp-plasmoid/src/package/metadata.desktop
--- a/templates/cpp-plasmoid/src/package/metadata.desktop
+++ b/templates/cpp-plasmoid/src/package/metadata.desktop
@@ -85,14 +85,13 @@
 
 X-KDE-PluginInfo-Author=%{AUTHOR}
 X-KDE-PluginInfo-Email=%{EMAIL}
-X-KDE-PluginInfo-Name=%{APPNAMELC}
+X-KDE-PluginInfo-Name=org.kde.plasma.%{APPNAMELC}
 X-KDE-PluginInfo-Version=1.0
 X-KDE-PluginInfo-Website=http://plasma.kde.org/
 X-KDE-PluginInfo-Category=Utilities
 X-KDE-PluginInfo-Depends=
 X-KDE-PluginInfo-License=GPL
 X-KDE-PluginInfo-EnabledByDefault=true
-X-KDE-PluginInfo-Name=org.kde.%{APPNAMELC}
 
 X-Plasma-API=declarativeappletscript
 X-Plasma-MainScript=ui/main.qml
diff --git a/templates/plasma-wallpaper-with-qml-extension/CMakeLists.txt b/templates/plasma-wallpaper-with-qml-extension/CMakeLists.txt
--- a/templates/plasma-wallpaper-with-qml-extension/CMakeLists.txt
+++ b/templates/plasma-wallpaper-with-qml-extension/CMakeLists.txt
@@ -22,6 +22,7 @@
 )
 
 # wallpaper applet
+# TODO: adapt "org.kde.plasma" here & elsewhere if needed (see README)
 plasma_install_package(package org.kde.plasma.%{APPNAMELC} wallpapers wallpaper)
 
 # qml extension plugin
diff --git a/templates/plasma-wallpaper-with-qml-extension/README b/templates/plasma-wallpaper-with-qml-extension/README
--- a/templates/plasma-wallpaper-with-qml-extension/README
+++ b/templates/plasma-wallpaper-with-qml-extension/README
@@ -1,6 +1,23 @@
 Plasma Wallpaper Template
 ----------------------
 
+-- Namespace adaption --
+
+Each Plasma plugin has a unique identifier, which is also used to find related
+resources (like the translation catalogs).
+To avoid naming collisions, Plasma plugins use a reverse domain name notation
+for that identifier:
+
+* org.kde.plasma.* - plugins coming from Plasma modules
+* org.kde.*        - plugins coming from other software from KDE
+* $(my.domain).*   - plugins of your 3rd-party
+
+The generated code uses the "org.kde.plasma" namespace for the plugin identifier.
+As this namespace is reserved for use by plugins part of Plasma modules, you will
+need to adapt this namespace if you are writing a plugin which is not intended to
+end up in the Plasma modules.
+
+
 -- Build instructions --
 
 cd /where/your/wallpaper/is/generated
diff --git a/templates/plasma-wallpaper/CMakeLists.txt b/templates/plasma-wallpaper/CMakeLists.txt
--- a/templates/plasma-wallpaper/CMakeLists.txt
+++ b/templates/plasma-wallpaper/CMakeLists.txt
@@ -1,10 +1,11 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.0)
 
 project(plasma-%{APPNAMELC})
 
 find_package(ECM 1.4.0 REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
 
 find_package(KF5Plasma REQUIRED)
 
+# TODO: adapt "org.kde.plasma" here & elsewhere if needed (see README)
 plasma_install_package(package org.kde.plasma.%{APPNAMELC} wallpapers wallpaper)
diff --git a/templates/plasma-wallpaper/README b/templates/plasma-wallpaper/README
--- a/templates/plasma-wallpaper/README
+++ b/templates/plasma-wallpaper/README
@@ -1,6 +1,23 @@
 Plasma Wallpaper Template
 ----------------------
 
+-- Namespace adaption --
+
+Each Plasma plugin has a unique identifier, which is also used to find related
+resources (like the translation catalogs).
+To avoid naming collisions, Plasma plugins use a reverse domain name notation
+for that identifier:
+
+* org.kde.plasma.* - plugins coming from Plasma modules
+* org.kde.*        - plugins coming from other software from KDE
+* $(my.domain).*   - plugins of your 3rd-party
+
+The generated code uses the "org.kde.plasma" namespace for the plugin identifier.
+As this namespace is reserved for use by plugins part of Plasma modules, you will
+need to adapt this namespace if you are writing a plugin which is not intended to
+end up in the Plasma modules.
+
+
 -- Build instructions --
 
 cd /where/your/wallpaper/is/generated
diff --git a/templates/plasma-wallpaper/package/contents/ui/main.qml b/templates/plasma-wallpaper/package/contents/ui/main.qml
--- a/templates/plasma-wallpaper/package/contents/ui/main.qml
+++ b/templates/plasma-wallpaper/package/contents/ui/main.qml
@@ -32,8 +32,7 @@
 
     PlasmaExtras.Title {
         anchors.centerIn: parent
-        // use i18nd in wallpaper QML, as the default textdomain is not setup at least in Plasma 5.7
         text: wallpaper.configuration.DisplayText ||
-              i18nd("plasma_wallpaper_org.kde.plasma.%{APPNAMELC}", "<Please configure a text to display>")
+              i18n("<Please configure a text to display>")
     }
 }
diff --git a/templates/qml-plasmoid-with-qml-extension/CMakeLists.txt b/templates/qml-plasmoid-with-qml-extension/CMakeLists.txt
--- a/templates/qml-plasmoid-with-qml-extension/CMakeLists.txt
+++ b/templates/qml-plasmoid-with-qml-extension/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.0)
 
 project(plasma-%{APPNAMELC})
  
@@ -8,6 +8,7 @@
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDECompilerSettings NO_POLICY_SCOPE)
+include(FeatureSummary)
 
 find_package(KF5 REQUIRED COMPONENTS
     Plasma
@@ -21,7 +22,10 @@
 )
 
 # plasmoid
-plasma_install_package(package org.kde.%{APPNAMELC})
+# TODO: adapt "org.kde.plasma" here & elsewhere if needed (see README)
+plasma_install_package(package org.kde.plasma.%{APPNAMELC})
 
 # qml extension plugin
 add_subdirectory(plugin)
+
+feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
diff --git a/templates/qml-plasmoid-with-qml-extension/Messages.sh b/templates/qml-plasmoid-with-qml-extension/Messages.sh
--- a/templates/qml-plasmoid-with-qml-extension/Messages.sh
+++ b/templates/qml-plasmoid-with-qml-extension/Messages.sh
@@ -1,2 +1,2 @@
 #! /usr/bin/env bash
-$XGETTEXT `find . -name \*.qml` -o $podir/plasma_applet_%{APPNAMELC}.pot
\ No newline at end of file
+$XGETTEXT `find . -name \*.qml -o -name \*.cpp` -o $podir/plasma_applet_org.kde.plasma.%{APPNAMELC}.pot
diff --git a/templates/qml-plasmoid-with-qml-extension/README b/templates/qml-plasmoid-with-qml-extension/README
--- a/templates/qml-plasmoid-with-qml-extension/README
+++ b/templates/qml-plasmoid-with-qml-extension/README
@@ -1,6 +1,23 @@
 Plasma Applet Template
 ----------------------
 
+-- Namespace adaption --
+
+Each Plasma plugin has a unique identifier, which is also used to find related
+resources (like the translation catalogs).
+To avoid naming collisions, Plasma plugins use a reverse domain name notation
+for that identifier:
+
+* org.kde.plasma.* - plugins coming from Plasma modules
+* org.kde.*        - plugins coming from other software from KDE
+* $(my.domain).*   - plugins of your 3rd-party
+
+The generated code uses the "org.kde.plasma" namespace for the plugin identifier.
+As this namespace is reserved for use by plugins part of Plasma modules, you will
+need to adapt this namespace if you are writing a plugin which is not intended to
+end up in the Plasma modules.
+
+
 -- Build instructions --
 
 cd /where/your/applet/is/generated
diff --git a/templates/qml-plasmoid-with-qml-extension/package/metadata.desktop b/templates/qml-plasmoid-with-qml-extension/package/metadata.desktop
--- a/templates/qml-plasmoid-with-qml-extension/package/metadata.desktop
+++ b/templates/qml-plasmoid-with-qml-extension/package/metadata.desktop
@@ -83,14 +83,13 @@
 
 X-KDE-PluginInfo-Author=%{AUTHOR}
 X-KDE-PluginInfo-Email=%{EMAIL}
-X-KDE-PluginInfo-Name=%{APPNAMELC}
+X-KDE-PluginInfo-Name=org.kde.plasma.%{APPNAMELC}
 X-KDE-PluginInfo-Version=1.0
 X-KDE-PluginInfo-Website=http://plasma.kde.org/
 X-KDE-PluginInfo-Category=Utilities
 X-KDE-PluginInfo-Depends=
 X-KDE-PluginInfo-License=GPL
 X-KDE-PluginInfo-EnabledByDefault=true
-X-KDE-PluginInfo-Name=org.kde.%{APPNAMELC}
 
 X-Plasma-API=declarativeappletscript
 X-Plasma-MainScript=ui/main.qml
diff --git a/templates/qml-plasmoid-with-qml-extension/plugin/%{APPNAMELC}plugin.cpp b/templates/qml-plasmoid-with-qml-extension/plugin/%{APPNAMELC}plugin.cpp
--- a/templates/qml-plasmoid-with-qml-extension/plugin/%{APPNAMELC}plugin.cpp
+++ b/templates/qml-plasmoid-with-qml-extension/plugin/%{APPNAMELC}plugin.cpp
@@ -18,6 +18,9 @@
 
 #include "%{APPNAMELC}plugin.h"
 
+// KF
+#include <KLocalizedString>
+// Qt
 #include <QJSEngine>
 #include <QQmlEngine>
 #include <QQmlContext>
@@ -27,7 +30,7 @@
     Q_UNUSED(engine)
 
     QJSValue helloWorld = scriptEngine->newObject();
-    helloWorld.setProperty("text", QStringLiteral("Hello world!"));
+    helloWorld.setProperty("text", i18n("Hello world!"));
     return helloWorld;
 }
 
diff --git a/templates/qml-plasmoid-with-qml-extension/plugin/CMakeLists.txt b/templates/qml-plasmoid-with-qml-extension/plugin/CMakeLists.txt
--- a/templates/qml-plasmoid-with-qml-extension/plugin/CMakeLists.txt
+++ b/templates/qml-plasmoid-with-qml-extension/plugin/CMakeLists.txt
@@ -1,10 +1,13 @@
+add_definitions(-DTRANSLATION_DOMAIN=\"plasma_applet_org.kde.plasma.%{APPNAMELC}\")
+
 set(%{APPNAMELC}plugin_SRCS
     %{APPNAMELC}plugin.cpp
 )
 
 add_library(%{APPNAMELC}plugin SHARED ${%{APPNAMELC}plugin_SRCS})
 
 target_link_libraries(%{APPNAMELC}plugin
+    KF5::I18n
     Qt5::Gui
     Qt5::Qml
 )
diff --git a/templates/qml-plasmoid/CMakeLists.txt b/templates/qml-plasmoid/CMakeLists.txt
--- a/templates/qml-plasmoid/CMakeLists.txt
+++ b/templates/qml-plasmoid/CMakeLists.txt
@@ -1,10 +1,11 @@
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.0)
 
 project(plasma-%{APPNAMELC})
  
 find_package(ECM 1.4.0 REQUIRED NO_MODULE)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
 
 find_package(KF5Plasma REQUIRED)
 
-plasma_install_package(package org.kde.%{APPNAMELC})
+# TODO: adapt "org.kde.plasma" here & elsewhere if needed (see README)
+plasma_install_package(package org.kde.plasma.%{APPNAMELC})
diff --git a/templates/qml-plasmoid/Messages.sh b/templates/qml-plasmoid/Messages.sh
--- a/templates/qml-plasmoid/Messages.sh
+++ b/templates/qml-plasmoid/Messages.sh
@@ -1,2 +1,2 @@
 #! /usr/bin/env bash
-$XGETTEXT `find . -name \*.qml` -o $podir/plasma_applet_%{APPNAMELC}.pot
\ No newline at end of file
+$XGETTEXT `find . -name \*.qml` -o $podir/plasma_applet_org.kde.plasma.%{APPNAMELC}.pot
diff --git a/templates/qml-plasmoid/README b/templates/qml-plasmoid/README
--- a/templates/qml-plasmoid/README
+++ b/templates/qml-plasmoid/README
@@ -1,6 +1,23 @@
 Plasma Applet Template
 ----------------------
 
+-- Namespace adaption --
+
+Each Plasma plugin has a unique identifier, which is also used to find related
+resources (like the translation catalogs).
+To avoid naming collisions, Plasma plugins use a reverse domain name notation
+for that identifier:
+
+* org.kde.plasma.* - plugins coming from Plasma modules
+* org.kde.*        - plugins coming from other software from KDE
+* $(my.domain).*   - plugins of your 3rd-party
+
+The generated code uses the "org.kde.plasma" namespace for the plugin identifier.
+As this namespace is reserved for use by plugins part of Plasma modules, you will
+need to adapt this namespace if you are writing a plugin which is not intended to
+end up in the Plasma modules.
+
+
 -- Build instructions --
 
 cd /where/your/applet/is/generated
diff --git a/templates/qml-plasmoid/package/metadata.desktop b/templates/qml-plasmoid/package/metadata.desktop
--- a/templates/qml-plasmoid/package/metadata.desktop
+++ b/templates/qml-plasmoid/package/metadata.desktop
@@ -83,14 +83,13 @@
 
 X-KDE-PluginInfo-Author=%{AUTHOR}
 X-KDE-PluginInfo-Email=%{EMAIL}
-X-KDE-PluginInfo-Name=%{APPNAMELC}
+X-KDE-PluginInfo-Name=org.kde.plasma.%{APPNAMELC}
 X-KDE-PluginInfo-Version=1.0
 X-KDE-PluginInfo-Website=http://plasma.kde.org/
 X-KDE-PluginInfo-Category=Utilities
 X-KDE-PluginInfo-Depends=
 X-KDE-PluginInfo-License=GPL
 X-KDE-PluginInfo-EnabledByDefault=true
-X-KDE-PluginInfo-Name=org.kde.%{APPNAMELC}
 
 X-Plasma-API=declarativeappletscript
 X-Plasma-MainScript=ui/main.qml