diff --git a/CMakeLists.txt b/CMakeLists.txt
index 44f95ef..750e86c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,6 +17,10 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     add_compile_options(-fconcepts)
 endif ()
 
+if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+    add_link_options(-fuse-ld=lld)
+endif ()
+
 if (WINDOWS)
     SET(CMAKE_SYSTEM_NAME Windows)
     ADD_DEFINITIONS(-D WINDOWS=1)
@@ -34,8 +38,19 @@ message(STATUS "Using:
 \t CXX ABI ${CMAKE_CXX_COMPILER_ABI}
 \t C++ Version ${CMAKE_CXX_STANDARD}")
 
+
 if (LEVEL_SIZE STREQUAL "8")
     add_definitions(-DLEVEL_U8)
+    message(STATUS "Using level size of 8")
+elseif (LEVEL_SIZE STREQUAL "16")
+    add_definitions(-DLEVEL_U16)
+    message(STATUS "Using level size of 16")
+elseif (LEVEL_SIZE STREQUAL "32")
+    add_definitions(-DLEVEL_U32)
+    message(STATUS "Using level size of 32")
+elseif (LEVEL_SIZE STREQUAL "64")
+    add_definitions(-DLEVEL_U64)
+    message(STATUS "Using level size of 64")
 else ()
     message(FATAL_ERROR, "Invalid level size was given.")
 endif ()
diff --git a/src/Library/Species/LearnableMoves.hpp b/src/Library/Species/LearnableMoves.hpp
index e35668f..3d8d392 100644
--- a/src/Library/Species/LearnableMoves.hpp
+++ b/src/Library/Species/LearnableMoves.hpp
@@ -9,7 +9,7 @@ namespace PkmnLib::Library {
         ArbUt::List<ArbUt::BorrowedPtr<const MoveData>> _eggMoves;
 
     public:
-        explicit LearnableMoves(size_t levelAttackCapacity) : LearnableAttacks(levelAttackCapacity) {}
+        explicit LearnableMoves(level_int_t levelAttackCapacity) : LearnableAttacks(levelAttackCapacity) {}
 
         void AddEggMove(const ArbUt::BorrowedPtr<const MoveData>& move) noexcept {
             if (!_eggMoves.Contains(move))