diff --git a/include/aquamarine/allocator/Swapchain.hpp b/include/aquamarine/allocator/Swapchain.hpp
index 0e49025..104dc38 100644
--- a/include/aquamarine/allocator/Swapchain.hpp
+++ b/include/aquamarine/allocator/Swapchain.hpp
@@ -7,8 +7,8 @@ namespace Aquamarine {
     class IBackendImplementation;
 
     struct SSwapchainOptions {
-        size_t                    length = 0;
-        Hyprutils::Math::Vector2D size;
+        size_t                    length  = 0;
+        Hyprutils::Math::Vector2D size    = Hyprutils::Math::Vector2D(0, 0);
         uint32_t                  format  = DRM_FORMAT_INVALID; // if you leave this on invalid, the swapchain will choose an appropriate format (and modifier) for you.
         bool                      scanout = false, cursor = false /* requires scanout = true */, multigpu = false /* if true, will force linear */;
     };
diff --git a/include/aquamarine/backend/DRM.hpp b/include/aquamarine/backend/DRM.hpp
index b1c569d..2905f03 100644
--- a/include/aquamarine/backend/DRM.hpp
+++ b/include/aquamarine/backend/DRM.hpp
@@ -236,12 +236,12 @@ namespace Aquamarine {
     };
 
     struct SDRMConnectorCommitData {
-        Hyprutils::Memory::CSharedPointer<CDRMFB> mainFB, cursorFB;
+        Hyprutils::Memory::CSharedPointer<CDRMFB> mainFB = nullptr, cursorFB = nullptr;
         bool                                      modeset  = false;
         bool                                      blocking = false;
         uint32_t                                  flags    = 0;
         bool                                      test     = false;
-        drmModeModeInfo                           modeInfo;
+        drmModeModeInfo                           modeInfo{0};
 
         struct {
             uint32_t gammaLut = 0;
@@ -323,6 +323,7 @@ namespace Aquamarine {
 
     class IDRMImplementation {
       public:
+        virtual ~IDRMImplementation()                                                                                  = default;
         virtual bool commit(Hyprutils::Memory::CSharedPointer<SDRMConnector> connector, SDRMConnectorCommitData& data) = 0;
         virtual bool reset()                                                                                           = 0;
 
diff --git a/include/aquamarine/buffer/Buffer.hpp b/include/aquamarine/buffer/Buffer.hpp
index 99c21bf..feda7a5 100644
--- a/include/aquamarine/buffer/Buffer.hpp
+++ b/include/aquamarine/buffer/Buffer.hpp
@@ -21,8 +21,8 @@ namespace Aquamarine {
     class CWLBufferResource;
 
     struct SDMABUFAttrs {
-        bool                      success = false;
-        Hyprutils::Math::Vector2D size;
+        bool                      success  = false;
+        Hyprutils::Math::Vector2D size     = Hyprutils::Math::Vector2D(0, 0);
         uint32_t                  format   = 0; // fourcc
         uint64_t                  modifier = 0;
 
diff --git a/include/aquamarine/output/Output.hpp b/include/aquamarine/output/Output.hpp
index 6474516..cba15d1 100644
--- a/include/aquamarine/output/Output.hpp
+++ b/include/aquamarine/output/Output.hpp
@@ -19,7 +19,7 @@ namespace Aquamarine {
         Hyprutils::Math::Vector2D      pixelSize;
         unsigned int                   refreshRate = 0 /* in mHz */;
         bool                           preferred   = false;
-        std::optional<drmModeModeInfo> modeInfo; // if this is a drm mode, this will be populated.
+        std::optional<drmModeModeInfo> modeInfo    = std::nullopt; // if this is a drm mode, this will be populated.
     };
 
     enum eOutputPresentationMode : uint32_t {
diff --git a/src/backend/Backend.cpp b/src/backend/Backend.cpp
index a6db06a..f10e0d0 100644
--- a/src/backend/Backend.cpp
+++ b/src/backend/Backend.cpp
@@ -246,7 +246,7 @@ void Aquamarine::CBackend::updateIdleTimer() {
     clock_gettime(CLOCK_MONOTONIC, &now);
     timespecAddNs(&now, ADD_NS);
 
-    itimerspec ts = {.it_value = now};
+    itimerspec ts = {.it_interval{0, 0}, .it_value = now};
 
     if (timerfd_settime(idle.fd, TFD_TIMER_ABSTIME, &ts, nullptr))
         log(AQ_LOG_ERROR, std::format("backend: failed to arm timerfd: {}", strerror(errno)));
diff --git a/src/backend/Headless.cpp b/src/backend/Headless.cpp
index df4b312..3433778 100644
--- a/src/backend/Headless.cpp
+++ b/src/backend/Headless.cpp
@@ -176,7 +176,7 @@ void Aquamarine::CHeadlessBackend::updateTimerFD() {
     clock_gettime(CLOCK_MONOTONIC, &now);
     timespecAddNs(&now, lowestNs);
 
-    itimerspec ts = {.it_value = now};
+    itimerspec ts = {.it_interval{0, 0}, .it_value = now};
 
     if (timerfd_settime(timers.timerfd, TFD_TIMER_ABSTIME, &ts, nullptr))
         backend->log(AQ_LOG_ERROR, std::format("headless: failed to arm timerfd: {}", strerror(errno)));
diff --git a/src/backend/Session.cpp b/src/backend/Session.cpp
index be8f4bb..15fcec7 100644
--- a/src/backend/Session.cpp
+++ b/src/backend/Session.cpp
@@ -722,8 +722,9 @@ void Aquamarine::CSession::handleLibinputEvent(libinput_event* e) {
             auto                tool = hlDevice->toolFrom(libinput_event_tablet_tool_get_tool(tte));
 
             ITablet::SAxisEvent event = {
-                .tool   = tool,
-                .timeMs = (uint32_t)(libinput_event_tablet_tool_get_time_usec(tte) / 1000),
+                .tool     = tool,
+                .timeMs   = (uint32_t)(libinput_event_tablet_tool_get_time_usec(tte) / 1000),
+                .absolute = Hyprutils::Math::Vector2D(0, 0),
             };
 
             if (libinput_event_tablet_tool_x_has_changed(tte)) {