diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 925bf0201..d690b8e12 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,7 @@ linux-builder:
     - unzip artifacts.zip
     - export LIBOPENSHOT_AUDIO_DIR=$CI_PROJECT_DIR/build/install-x64
     - mkdir -p build; cd build;
-    - cmake -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -D"CMAKE_INSTALL_PREFIX:PATH=$CI_PROJECT_DIR/build/install-x64" -D"PYTHON_MODULE_PATH=python" -D"RUBY_MODULE_PATH=ruby" -DCMAKE_BUILD_TYPE:STRING=Release -DUSE_SYSTEM_JSONCPP=0 ../
+    - cmake -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON -D"CMAKE_INSTALL_PREFIX:PATH=$CI_PROJECT_DIR/build/install-x64" -D"PYTHON_MODULE_PATH=python" -D"RUBY_MODULE_PATH=ruby" -DCMAKE_BUILD_TYPE:STRING=Release -DAPPIMAGE_BUILD=1 -DUSE_SYSTEM_JSONCPP=0 ../
     - make
     - make install
     - make doc
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f50c575fa..94b09879b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -76,6 +76,7 @@ option(DISABLE_BUNDLED_JSONCPP "Don't fall back to bundled JsonCpp" OFF)
 option(ENABLE_IWYU "Enable 'Include What You Use' scanner (CMake 3.3+)" OFF)
 option(ENABLE_TESTS "Build unit tests (requires UnitTest++)" ON)
 option(ENABLE_DOCS "Build API documentation (requires Doxygen)" ON)
+option(APPIMAGE_BUILD "Build to install in an AppImage (Linux only)" OFF)
 
 # Legacy commandline override
 if (DISABLE_TESTS)
diff --git a/include/OpenShotVersion.h.in b/include/OpenShotVersion.h.in
index d0b015a4f..5e86e8ce7 100644
--- a/include/OpenShotVersion.h.in
+++ b/include/OpenShotVersion.h.in
@@ -49,6 +49,7 @@
 #cmakedefine AVUTIL_VERSION_STR "@AVUTIL_VERSION_STR@"
 #cmakedefine01 HAVE_IMAGEMAGICK
 #cmakedefine01 HAVE_RESVG
+#cmakedefine01 APPIMAGE_BUILD
 
 #include <sstream>
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 90c74ead7..61892668c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -33,8 +33,8 @@ include(GNUInstallDirs)
 # Set some compiler options for Windows
 # required for libopenshot-audio headers
 if (WIN32)
-	add_definitions( -DIGNORE_JUCE_HYPOT=1 )
-	set(CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} -include cmath")
+  add_definitions( -DIGNORE_JUCE_HYPOT=1 )
+  set(CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} -include cmath")
 endif()
 
 if (APPLE)
@@ -50,28 +50,28 @@ endif()
 ################ IMAGE MAGICK ##################
 # Set the Quantum Depth that ImageMagick was built with (default to 16 bits)
 IF (MAGICKCORE_QUANTUM_DEPTH)
-	add_definitions( -DMAGICKCORE_QUANTUM_DEPTH=${MAGICKCORE_QUANTUM_DEPTH} )
+  add_definitions( -DMAGICKCORE_QUANTUM_DEPTH=${MAGICKCORE_QUANTUM_DEPTH} )
 ELSE (MAGICKCORE_QUANTUM_DEPTH)
-	add_definitions( -DMAGICKCORE_QUANTUM_DEPTH=16 )
+  add_definitions( -DMAGICKCORE_QUANTUM_DEPTH=16 )
 ENDIF (MAGICKCORE_QUANTUM_DEPTH)
 IF (MAGICKCORE_HDRI_ENABLE)
-	add_definitions( -DMAGICKCORE_HDRI_ENABLE=${MAGICKCORE_HDRI_ENABLE} )
+  add_definitions( -DMAGICKCORE_HDRI_ENABLE=${MAGICKCORE_HDRI_ENABLE} )
 ELSE (MAGICKCORE_HDRI_ENABLE)
-	add_definitions( -DMAGICKCORE_HDRI_ENABLE=0 )
+  add_definitions( -DMAGICKCORE_HDRI_ENABLE=0 )
 ENDIF (MAGICKCORE_HDRI_ENABLE)
 
 # Find the ImageMagick++ library
 find_package(ImageMagick COMPONENTS Magick++ MagickWand MagickCore)
 if (ImageMagick_FOUND)
-	# Include ImageMagick++ headers (needed for compile)
-	include_directories(${ImageMagick_INCLUDE_DIRS})
+  # Include ImageMagick++ headers (needed for compile)
+  include_directories(${ImageMagick_INCLUDE_DIRS})
 
-	# define a global var (used in the C++)
-	add_definitions( -DUSE_IMAGEMAGICK=1 )
-	set(CMAKE_SWIG_FLAGS "-DUSE_IMAGEMAGICK=1")
+  # define a global var (used in the C++)
+  add_definitions( -DUSE_IMAGEMAGICK=1 )
+  list(APPEND CMAKE_SWIG_FLAGS "-DUSE_IMAGEMAGICK=1")
 
-    set(HAVE_IMAGEMAGICK TRUE CACHE BOOL "Building with ImageMagick support" FORCE)
-    mark_as_advanced(HAVE_IMAGEMAGICK)
+  set(HAVE_IMAGEMAGICK TRUE CACHE BOOL "Building with ImageMagick support" FORCE)
+  mark_as_advanced(HAVE_IMAGEMAGICK)
 endif()
 
 ################# LIBOPENSHOT-AUDIO ###################
@@ -85,15 +85,15 @@ include_directories(${LIBOPENSHOT_AUDIO_INCLUDE_DIRS})
 # Find BlackMagic DeckLinkAPI libraries
 if (ENABLE_BLACKMAGIC)
 
-	find_package(BlackMagic)
+  find_package(BlackMagic)
 
-	if (BLACKMAGIC_FOUND)
-		# Include Blackmagic headers (needed for compile)
-		include_directories(${BLACKMAGIC_INCLUDE_DIR})
+  if (BLACKMAGIC_FOUND)
+    # Include Blackmagic headers (needed for compile)
+    include_directories(${BLACKMAGIC_INCLUDE_DIR})
 
-		# define a global var (used in the C++)
-		add_definitions( -DUSE_BLACKMAGIC=1 )
-		set(CMAKE_SWIG_FLAGS "-DUSE_BLACKMAGIC=1")
+    # define a global var (used in the C++)
+    add_definitions( -DUSE_BLACKMAGIC=1 )
+    list(APPEND CMAKE_SWIG_FLAGS "-DUSE_BLACKMAGIC=1")
   endif()
 
 endif()
@@ -148,7 +148,7 @@ set(OPENSHOT_SOURCES
   Fraction.cpp
   Frame.cpp
   FrameMapper.cpp
-	Json.cpp
+  Json.cpp
   KeyFrame.cpp
   OpenShotVersion.cpp
   ZmqLogger.cpp
@@ -216,7 +216,7 @@ set_target_properties(openshot PROPERTIES
 
 # Add optional ImageMagic-dependent sources
 if(ImageMagick_FOUND)
-	target_sources(openshot PRIVATE
+  target_sources(openshot PRIVATE
     ImageReader.cpp
     ImageWriter.cpp
     TextReader.cpp)
@@ -245,7 +245,7 @@ target_include_directories(openshot
 ################### JSONCPP #####################
 # Include jsoncpp headers (needed for JSON parsing)
 if (USE_SYSTEM_JSONCPP)
-	message(STATUS "Looking for system jsoncpp")
+  message(STATUS "Looking for system jsoncpp")
   # Either an installed config or our find module will
   # create the IMPORTED target jsoncpp_lib if successful
   find_package(jsoncpp)
@@ -344,7 +344,7 @@ find_package(cppzmq QUIET) # Creates cppzmq target
 
 # Link ZeroMQ library
 if (TARGET libzmq)
-	target_link_libraries(openshot PUBLIC libzmq)
+  target_link_libraries(openshot PUBLIC libzmq)
 endif()
 # Include cppzmq headers, if not bundled into libzmq
 if (TARGET cppzmq)
@@ -361,7 +361,7 @@ if(DEFINED ENV{RESVGDIR} AND NOT DEFINED RESVG_ROOT)
 endif()
 
 # Find resvg library (used for rendering svg files)
-FIND_PACKAGE(RESVG)
+find_package(RESVG)
 
 # Include resvg headers (optional SVG library)
 if (TARGET RESVG::resvg)
@@ -369,7 +369,7 @@ if (TARGET RESVG::resvg)
   target_link_libraries(openshot PUBLIC RESVG::resvg)
 
   target_compile_definitions(openshot PUBLIC "-DUSE_RESVG=1")
-  set(CMAKE_SWIG_FLAGS "-DUSE_RESVG=1")
+  list(APPEND CMAKE_SWIG_FLAGS "-DUSE_RESVG=1")
 
   set(HAVE_RESVG TRUE CACHE BOOL "Building with Resvg support" FORCE)
   mark_as_advanced(HAVE_RESVG)
@@ -379,7 +379,7 @@ endif()
 ###############  LINK LIBRARY  #################
 # Link remaining dependency libraries
 target_link_libraries(openshot PUBLIC
-	${LIBOPENSHOT_AUDIO_LIBRARIES}
+  ${LIBOPENSHOT_AUDIO_LIBRARIES}
   ${PROFILER})
 
 if(ImageMagick_FOUND)
@@ -391,8 +391,8 @@ if(BLACKMAGIC_FOUND)
 endif()
 
 if(WIN32)
-	# Required for exception handling on Windows
-	target_link_libraries(openshot PUBLIC "imagehlp" "dbghelp" )
+  # Required for exception handling on Windows
+  target_link_libraries(openshot PUBLIC "imagehlp" "dbghelp" )
 endif()
 
 
@@ -401,9 +401,9 @@ endif()
 add_executable(openshot-example examples/Example.cpp)
 
 # Define path to test input files
-SET(TEST_MEDIA_PATH "${PROJECT_SOURCE_DIR}/src/examples/")
+set(TEST_MEDIA_PATH "${PROJECT_SOURCE_DIR}/src/examples/")
 if (WIN32)
-        STRING(REPLACE "/" "\\\\" TEST_MEDIA_PATH TEST_MEDIA_PATH)
+  string(REPLACE "/" "\\\\" TEST_MEDIA_PATH TEST_MEDIA_PATH)
 endif()
 target_compile_definitions(openshot-example PRIVATE
 	-DTEST_MEDIA_PATH="${TEST_MEDIA_PATH}" )
@@ -423,12 +423,12 @@ target_link_libraries(openshot-player openshot)
 
 ############### TEST BLACKMAGIC CAPTURE APP ################
 if (BLACKMAGIC_FOUND)
-	# Create test executable
-	add_executable(openshot-blackmagic
-			examples/ExampleBlackmagic.cpp)
+  # Create test executable
+  add_executable(openshot-blackmagic
+    examples/ExampleBlackmagic.cpp)
 
-	# Link test executable to the new library
-	target_link_libraries(openshot-blackmagic openshot)
+  # Link test executable to the new library
+  target_link_libraries(openshot-blackmagic openshot)
 endif()
 
 ############### INCLUDE SWIG BINDINGS ################
@@ -448,13 +448,13 @@ install(DIRECTORY ${CMAKE_SOURCE_DIR}/include/
 
 ############### CPACK PACKAGING ##############
 if(MINGW)
-	set(CPACK_GENERATOR "NSIS")
+  set(CPACK_GENERATOR "NSIS")
 endif()
 if(UNIX AND NOT APPLE)
-	set(CPACK_GENERATOR "DEB")
+  set(CPACK_GENERATOR "DEB")
 endif()
 #if(UNIX AND APPLE)
-#	set(CPACK_GENERATOR "DragNDrop")
+#  set(CPACK_GENERATOR "DragNDrop")
 #endif()
 set(CPACK_DEBIAN_PACKAGE_MAINTAINER "Jonathan Thomas") #required
 
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 7ccddba8d..53b4cacea 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -80,7 +80,6 @@ if(ImageMagick_FOUND)
 
 	# define a global var (used in the C++)
 	add_definitions( -DUSE_IMAGEMAGICK=1 )
-	set(CMAKE_SWIG_FLAGS "-DUSE_IMAGEMAGICK=1")
 endif()
 
 ################# LIBOPENSHOT-AUDIO ###################