diff --git a/platform/qt/src/mbgl/http_file_source.cpp b/platform/qt/src/mbgl/http_file_source.cpp
index b5885940c15..892955de63b 100644
--- a/platform/qt/src/mbgl/http_file_source.cpp
+++ b/platform/qt/src/mbgl/http_file_source.cpp
@@ -106,8 +106,9 @@ HTTPFileSource::HTTPFileSource(const ResourceOptions& resourceOptions, const Cli
 
 HTTPFileSource::~HTTPFileSource() = default;
 
-std::unique_ptr<AsyncRequest> HTTPFileSource::request(const Resource& resource, Callback callback) {
-    return std::make_unique<HTTPRequest>(impl.get(), resource, callback);
+std::unique_ptr<AsyncRequest> HTTPFileSource::request(const Resource& resource,
+                                                      FileSource::CopyableCallback<void(Response)> callback) {
+    return std::make_unique<HTTPRequest>(impl.get(), resource, std::move(callback));
 }
 
 void HTTPFileSource::setResourceOptions(ResourceOptions options) {
diff --git a/platform/qt/src/mbgl/http_request.cpp b/platform/qt/src/mbgl/http_request.cpp
index 973760a419a..550d2821a9d 100644
--- a/platform/qt/src/mbgl/http_request.cpp
+++ b/platform/qt/src/mbgl/http_request.cpp
@@ -13,10 +13,12 @@
 
 namespace mbgl {
 
-HTTPRequest::HTTPRequest(HTTPFileSource::Impl* context, const Resource& resource, FileSource::Callback callback)
+HTTPRequest::HTTPRequest(HTTPFileSource::Impl* context,
+                         const Resource& resource,
+                         FileSource::CopyableCallback<void(Response)> callback)
     : m_context(context),
       m_resource(resource),
-      m_callback(callback) {
+      m_callback(std::move(callback)) {
     m_context->request(this);
 }
 
diff --git a/platform/qt/src/mbgl/http_request.hpp b/platform/qt/src/mbgl/http_request.hpp
index 5486b686caf..5e53a4266f3 100644
--- a/platform/qt/src/mbgl/http_request.hpp
+++ b/platform/qt/src/mbgl/http_request.hpp
@@ -14,7 +14,7 @@ class Response;
 
 class HTTPRequest : public AsyncRequest {
 public:
-    HTTPRequest(HTTPFileSource::Impl*, const Resource&, FileSource::Callback);
+    HTTPRequest(HTTPFileSource::Impl*, const Resource&, FileSource::CopyableCallback<void(Response)>);
     virtual ~HTTPRequest();
 
     QUrl requestUrl() const;
@@ -25,7 +25,7 @@ class HTTPRequest : public AsyncRequest {
 private:
     HTTPFileSource::Impl* m_context;
     Resource m_resource;
-    FileSource::Callback m_callback;
+    FileSource::CopyableCallback<void(Response)> m_callback;
 
     bool m_handled = false;
 };
diff --git a/platform/qt/src/mbgl/run_loop.cpp b/platform/qt/src/mbgl/run_loop.cpp
index ea1828dea07..9831602ecd3 100644
--- a/platform/qt/src/mbgl/run_loop.cpp
+++ b/platform/qt/src/mbgl/run_loop.cpp
@@ -107,7 +107,7 @@ void RunLoop::waitForEmpty([[maybe_unused]] const mbgl::util::SimpleIdentity tag
     }
 }
 
-void RunLoop::addWatch(int fd, Event event, std::function<void(int, Event)>&& cb) {
+void RunLoop::addWatch(int fd, Event event, std23::move_only_function<void(int, Event)>&& cb) {
     MBGL_VERIFY_THREAD(tid);
 
     if (event == Event::Read || event == Event::ReadWrite) {
diff --git a/platform/qt/src/mbgl/run_loop_impl.hpp b/platform/qt/src/mbgl/run_loop_impl.hpp
index c1fe8578e31..650b5e58ce3 100644
--- a/platform/qt/src/mbgl/run_loop_impl.hpp
+++ b/platform/qt/src/mbgl/run_loop_impl.hpp
@@ -13,7 +13,7 @@
 namespace mbgl {
 namespace util {
 
-using WatchCallback = std::function<void(int, RunLoop::Event)>;
+using WatchCallback = std23::move_only_function<void(int, RunLoop::Event)>;
 using WatchPair = std::pair<std::unique_ptr<QSocketNotifier>, WatchCallback>;
 
 class RunLoop::Impl : public QObject {
diff --git a/platform/qt/src/utils/scheduler.cpp b/platform/qt/src/utils/scheduler.cpp
index a457d438363..af99ed7335f 100644
--- a/platform/qt/src/utils/scheduler.cpp
+++ b/platform/qt/src/utils/scheduler.cpp
@@ -27,7 +27,7 @@ void Scheduler::schedule(mbgl::util::SimpleIdentity, Task&& function) {
 }
 
 void Scheduler::processEvents() {
-    std::queue<std::function<void()>> taskQueue;
+    std::queue<Task> taskQueue;
     {
         const std::unique_lock<std::mutex> lock(m_taskQueueMutex);
         std::swap(taskQueue, m_taskQueue);
diff --git a/platform/qt/src/utils/scheduler.hpp b/platform/qt/src/utils/scheduler.hpp
index d9f5c6dce7d..15020a9f4cb 100644
--- a/platform/qt/src/utils/scheduler.hpp
+++ b/platform/qt/src/utils/scheduler.hpp
@@ -39,7 +39,7 @@ class Scheduler : public QObject, public mbgl::Scheduler {
     std::mutex m_taskQueueMutex;
     std::condition_variable cvEmpty;
     std::atomic<std::size_t> pendingItems;
-    std::queue<std::function<void()>> m_taskQueue;
+    std::queue<Task> m_taskQueue;
     mapbox::base::WeakPtrFactory<Scheduler> weakFactory{this};
     // Do not add members here, see `WeakPtrFactory`
 };