diff --git a/.github/workflows/ci-build.yml b/.github/workflows/ci-build.yml
index 3b46ec37c6..1aa7e17ccb 100644
--- a/.github/workflows/ci-build.yml
+++ b/.github/workflows/ci-build.yml
@@ -75,6 +75,9 @@ jobs:
         - compiler: gcc
           cxxcompiler: g++
           libsdl: libsdl1.2-dev
+        - compiler: gcc
+          cxxcompiler: g++
+          extra-cmake-parameters: -DOPTION_DEDICATED=ON
 
     runs-on: ubuntu-20.04
     env:
@@ -97,7 +100,6 @@ jobs:
           libfontconfig-dev \
           libicu-dev \
           liblzma-dev \
-          libzstd-dev \
           liblzo2-dev \
           ${{ matrix.libsdl }} \
           zlib1g-dev \
@@ -130,7 +132,7 @@ jobs:
         cd build
 
         echo "::group::CMake"
-        cmake ..
+        cmake .. ${{ matrix.extra-cmake-parameters }}
         echo "::endgroup::"
 
         echo "::group::Build"
@@ -170,7 +172,7 @@ jobs:
       uses: actions/cache@v2
       with:
         path: /usr/local/share/vcpkg/installed
-        key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-1 # Increase the number whenever dependencies are modified
+        key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-0 # Increase the number whenever dependencies are modified
         restore-keys: |
           ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}
 
@@ -178,7 +180,6 @@ jobs:
       run: |
         vcpkg install --triplet=${{ matrix.arch }}-osx \
           liblzma \
-          zstd \
           libpng \
           lzo \
           zlib \
@@ -253,7 +254,7 @@ jobs:
       uses: actions/cache@v2
       with:
         path: vcpkg/installed
-        key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-1 # Increase the number whenever dependencies are modified
+        key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-0 # Increase the number whenever dependencies are modified
         restore-keys: |
           ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}
 
@@ -262,7 +263,6 @@ jobs:
       run: |
         vcpkg install --triplet=${{ matrix.arch }}-windows-static \
           liblzma \
-          zstd \
           libpng \
           lzo \
           zlib \
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 19a0dc54b6..84e8c17d98 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -297,7 +297,6 @@ jobs:
           SDL2-devel \
           wget \
           xz-devel \
-          libzstd-devel \
           zlib-devel \
           # EOF
         echo "::endgroup::"
@@ -413,7 +412,6 @@ jobs:
           libfluidsynth-dev \
           libicu-dev \
           liblzma-dev \
-          libzstd-dev \
           liblzo2-dev \
           libsdl2-dev \
           lsb-release \
@@ -498,7 +496,7 @@ jobs:
       uses: actions/cache@v2
       with:
         path: /usr/local/share/vcpkg/installed
-        key: ${{ steps.key.outputs.image }}-vcpkg-release-1 # Increase the number whenever dependencies are modified
+        key: ${{ steps.key.outputs.image }}-vcpkg-release-0 # Increase the number whenever dependencies are modified
         restore-keys: |
           ${{ steps.key.outputs.image }}-vcpkg-release
           ${{ steps.key.outputs.image }}-vcpkg-x64
@@ -508,8 +506,6 @@ jobs:
         vcpkg install \
           liblzma:x64-osx \
           liblzma:arm64-osx \
-          zstd:x64-osx \
-          zstd:arm64-osx \
           libpng:x64-osx \
           libpng:arm64-osx \
           lzo:x64-osx \
@@ -703,7 +699,7 @@ jobs:
       uses: actions/cache@v2
       with:
         path: vcpkg/installed
-        key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-1 # Increase the number whenever dependencies are modified
+        key: ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}-0 # Increase the number whenever dependencies are modified
         restore-keys: |
           ${{ steps.key.outputs.image }}-vcpkg-${{ matrix.arch }}
 
@@ -712,7 +708,6 @@ jobs:
       run: |
         vcpkg install --triplet=${{ matrix.arch }}-windows-static \
           liblzma \
-          zstd \
           libpng \
           lzo \
           zlib \
@@ -869,7 +864,7 @@ jobs:
       env:
         AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
         AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-        AWS_REGION: ${{ secrets.AWS_REGION }}
+        AWS_DEFAULT_REGION: ${{ secrets.AWS_REGION }}
 
     - name: Trigger 'New OpenTTD release'
       uses: peter-evans/repository-dispatch@v1
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d4e04c9484..15dd94df58 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -120,28 +120,31 @@ find_package(LZO)
 find_package(ZSTD 1.4)
 find_package(PNG)
 
-if(NOT WIN32)
-    find_package(Allegro)
-    if(NOT APPLE)
-        find_package(Freetype)
-        find_package(SDL2)
-        if(NOT SDL2_FOUND)
-            find_package(SDL)
+if(NOT OPTION_DEDICATED)
+    if(NOT WIN32)
+        find_package(Allegro)
+        if(NOT APPLE)
+            find_package(Freetype)
+            find_package(SDL2)
+            if(NOT SDL2_FOUND)
+                find_package(SDL)
+            endif()
+            find_package(Fluidsynth)
+            find_package(Fontconfig)
+            find_package(ICU OPTIONAL_COMPONENTS i18n lx)
         endif()
-        find_package(Fluidsynth)
-        find_package(Fontconfig)
-        find_package(ICU OPTIONAL_COMPONENTS i18n lx)
-    else()
-        find_package(Iconv)
-
-        find_library(AUDIOTOOLBOX_LIBRARY AudioToolbox)
-        find_library(AUDIOUNIT_LIBRARY AudioUnit)
-        find_library(COCOA_LIBRARY Cocoa)
-        find_library(QUARTZCORE_LIBRARY QuartzCore)
     endif()
 endif()
+if(APPLE)
+    find_package(Iconv)
 
-if(NOT EMSCRIPTEN)
+    find_library(AUDIOTOOLBOX_LIBRARY AudioToolbox)
+    find_library(AUDIOUNIT_LIBRARY AudioUnit)
+    find_library(COCOA_LIBRARY Cocoa)
+    find_library(QUARTZCORE_LIBRARY QuartzCore)
+endif()
+
+if(NOT EMSCRIPTEN AND NOT OPTION_DEDICATED)
     find_package(OpenGL COMPONENTS OpenGL)
 endif()
 
@@ -219,7 +222,7 @@ if(MSVC)
 endif()
 
 add_subdirectory(${CMAKE_SOURCE_DIR}/src)
-add_subdirectory(${CMAKE_SOURCE_DIR}/media/baseset)
+add_subdirectory(${CMAKE_SOURCE_DIR}/media)
 
 add_dependencies(openttd
     find_version)
@@ -227,6 +230,7 @@ add_dependencies(openttd
 target_link_libraries(openttd
     openttd::languages
     openttd::settings
+    openttd::media
     openttd::basesets
     openttd::script_api
     Threads::Threads
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0856d4de0f..82fd721afc 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -26,7 +26,6 @@ add_subdirectory(table)
 add_subdirectory(video)
 add_subdirectory(widgets)
 
-
 add_files(
     viewport_sprite_sorter_sse4.cpp
     CONDITION SSE_FOUND