diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 502a6e1a..5f739f2b 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -528,6 +528,11 @@ jobs:
           path: 'SuperGenius'
           submodules: "recursive"    
 
+      - name: Install Ninja
+        run: |
+          brew install ccache ninja
+          echo "CMAKE_GENERATOR=Ninja" >> $GITHUB_ENV
+
       - name: Install bindgen
         run: cargo install cbindgen
 
@@ -557,7 +562,7 @@ jobs:
 
       - name: Thirdparty Compile
         working-directory: ${{github.workspace}}/thirdparty/build/iOS/Release 
-        run: make -j8
+        run: cmake --build . -j --config Release
         
       - name: Create Build Directory
         run: cmake -E make_directory ${{github.workspace}}/SuperGenius/build/iOS/Release          
@@ -568,7 +573,7 @@ jobs:
 
       - name: Compile
         working-directory: ${{github.workspace}}/SuperGenius/build/iOS/Release 
-        run: make -j8
+        run: cmake --build . -j --config Release
       
       - name: Install
         working-directory: ${{github.workspace}}/SuperGenius/build/iOS/Release 
diff --git a/build/iOS/CMakeLists.txt b/build/iOS/CMakeLists.txt
index 504635f7..fea8120f 100644
--- a/build/iOS/CMakeLists.txt
+++ b/build/iOS/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.15)
+cmake_minimum_required(VERSION 3.22)
 
 if(POLICY CMP0025)
     # NEW: report OS X version of Clang as "AppleClang"
@@ -49,9 +49,6 @@ set(THREADS_PREFER_PTHREAD_FLAG ON)
 set(FORCE_MULTILE ON)
 set(MULTIPLE_OPTION "-Xlink=-force:multiple")
 
-# Set extra compiler flags
-set(EXTRA_CXX_FLAGS -std=c++17)
-
 # Set custom subfolder for ABI
 set(ABI_SUBFOLDER_NAME "/aarch64")
 
diff --git a/src/base/blob.hpp b/src/base/blob.hpp
index 53622685..78fb2caf 100644
--- a/src/base/blob.hpp
+++ b/src/base/blob.hpp
@@ -39,8 +39,9 @@ namespace sgns::base {
      * @brief constructor enabling initializer list
      * @param l initializer list
      */
-    explicit Blob(const std::array<byte_t, size_> &l) {
-      std::copy(l.begin(), l.end(), this->begin());
+    explicit constexpr Blob( const std::array<byte_t, size_> &l )
+    {
+        std::copy( l.begin(), l.end(), this->begin() );
     }
 
     /**
diff --git a/src/primitives/common.hpp b/src/primitives/common.hpp
index 8a7a5683..9ee64bfd 100644
--- a/src/primitives/common.hpp
+++ b/src/primitives/common.hpp
@@ -1,5 +1,3 @@
-
-
 #ifndef SUPERGENIUS_SRC_PRIMITIVES_COMMON_HPP
 #define SUPERGENIUS_SRC_PRIMITIVES_COMMON_HPP
 
@@ -19,10 +17,11 @@ namespace sgns::primitives {
     // (BlockInfo, Prevote, Precommit, PrimaryPropose)
     template <typename Tag>
     struct BlockInfoT : public boost::equality_comparable<BlockInfoT<Tag>> {
-      BlockInfoT() = default;
+      constexpr BlockInfoT() = default;
 
-      BlockInfoT(const BlockNumber &n, const BlockHash &h)
-          : block_number(n), block_hash(h) {}
+      constexpr BlockInfoT( BlockNumber n, BlockHash h ) : block_number( n ), block_hash( h )
+      {
+      }
 
       BlockNumber block_number{};
       BlockHash   block_hash;
diff --git a/src/processing/CMakeLists.txt b/src/processing/CMakeLists.txt
index 313f6879..4fa1517d 100644
--- a/src/processing/CMakeLists.txt
+++ b/src/processing/CMakeLists.txt
@@ -57,18 +57,23 @@ target_include_directories(processing_service
 
 if(APPLE)
 	set(XCFRAMEWORK_PATH "${_THIRDPARTY_BUILD_DIR}/moltenvk/build/lib/MoltenVK.xcframework")
-	target_link_libraries(processing_service PRIVATE
-		"-framework CoreFoundation"
-		"-framework CoreGraphics"
-		"-framework CoreServices"
-		"-framework IOKit"
-		"-framework IOSurface"
-		"-framework Metal"
-		"-framework QuartzCore"
-		"-framework AppKit"
-#		${XCFRAMEWORK_PATH} 
-		"-framework Foundation"
-		)
+    target_link_libraries(processing_service PRIVATE
+        "-framework CoreFoundation"
+        "-framework CoreGraphics"
+        "-framework CoreServices"
+        "-framework IOKit"
+        "-framework IOSurface"
+        "-framework Metal"
+        "-framework QuartzCore"
+
+        # ${XCFRAMEWORK_PATH}
+        "-framework Foundation"
+    )
+
+    if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+        target_link_libraries(processing_service PRIVATE
+            "-framework AppKit")
+    endif()
 endif()
 
 target_link_libraries(processing_service PRIVATE
diff --git a/src/verification/authority/impl/schedule_node.hpp b/src/verification/authority/impl/schedule_node.hpp
index f47d004e..42a794c1 100644
--- a/src/verification/authority/impl/schedule_node.hpp
+++ b/src/verification/authority/impl/schedule_node.hpp
@@ -27,7 +27,7 @@ namespace sgns::authority {
     std::shared_ptr<ScheduleNode> makeDescendant(
         const primitives::BlockInfo &block, bool finalized = false);
 
-    const primitives::BlockInfo                block;
+    const primitives::BlockInfo                block{};
     std::weak_ptr<ScheduleNode> parent;
     std::vector<std::shared_ptr<ScheduleNode>> descendants;
 
diff --git a/src/verification/finality/voter_set.hpp b/src/verification/finality/voter_set.hpp
index dda33cf1..67de3340 100644
--- a/src/verification/finality/voter_set.hpp
+++ b/src/verification/finality/voter_set.hpp
@@ -4,6 +4,7 @@
 #define SUPERGENIUS_SRC_VERIFICATION_FINALITY_VOTER_SET_HPP
 
 #include <boost/optional.hpp>
+#include <unordered_map>
 
 #include "verification/finality/common.hpp"