diff --git a/depthai-core/src/utility/Resources.cpp b/depthai-core/src/utility/Resources.cpp
index bca4dbde..e55436ea 100644
--- a/depthai-core/src/utility/Resources.cpp
+++ b/depthai-core/src/utility/Resources.cpp
@@ -255,9 +255,14 @@ std::function<void()> getLazyTarXzFunction(MTX& mtx, CV& cv, BOOL& ready, PATH c
     return [&mtx, &cv, &ready, cmrcPath, &resourceList, &resourceMap] {
         using namespace std::chrono;
 
-        // Get binaries from internal sources
-        auto fs = cmrc::depthai::get_filesystem();
-        auto tarXz = fs.open(cmrcPath);
+        std::ifstream file(cmrcPath, std::ios::binary | std::ios::ate);
+        auto size = file.tellg();
+        file.seekg(0, std::ios::beg);
+        std::vector<char> buffer(size);
+        if (!file.read(buffer.data(), size))
+        {
+            throw std::runtime_error(std::string("Could not open file for reading: \"") + cmrcPath + '"');
+        }
 
         auto t1 = steady_clock::now();
 
@@ -265,7 +270,7 @@ std::function<void()> getLazyTarXzFunction(MTX& mtx, CV& cv, BOOL& ready, PATH c
         struct archive* a = archive_read_new();
         archive_read_support_filter_xz(a);
         archive_read_support_format_tar(a);
-        int r = archive_read_open_memory(a, tarXz.begin(), tarXz.size());
+        int r = archive_read_open_memory(a, buffer.data(), size);
         assert(r == ARCHIVE_OK);
 
         auto t2 = steady_clock::now();