diff --git a/Justfile b/Justfile
index f60771a..2d6377e 100644
--- a/Justfile
+++ b/Justfile
@@ -12,6 +12,9 @@ lint-ci:
 lint-changed:
 	git diff --name-only HEAD | grep "^.*\.cpp\$" |  parallel -j$(nproc) --no-notice --will-cite --tty --bar clang-tidy --load={{ env_var("TIDYFOX") }}
 
+lint-staged:
+	git diff --staged --name-only HEAD | grep "^.*\.cpp\$" |  parallel -j$(nproc) --no-notice --will-cite --tty --bar clang-tidy --load={{ env_var("TIDYFOX") }}
+
 configure target='debug' *FLAGS='':
 	cmake -GNinja -B {{builddir}} \
 		-DCMAKE_BUILD_TYPE={{ if target == "debug" { "Debug" } else { "RelWithDebInfo" } }} \
diff --git a/src/core/logging.cpp b/src/core/logging.cpp
index 909da03..034a14d 100644
--- a/src/core/logging.cpp
+++ b/src/core/logging.cpp
@@ -313,8 +313,12 @@ void ThreadLogging::init() {
 
 	if (logMfd != -1) {
 		this->file = new QFile();
-		this->file->open(logMfd, QFile::ReadWrite, QFile::AutoCloseHandle);
-		this->fileStream.setDevice(this->file);
+
+		if (this->file->open(logMfd, QFile::ReadWrite, QFile::AutoCloseHandle)) {
+			this->fileStream.setDevice(this->file);
+		} else {
+			qCCritical(logLogging) << "Failed to open early logging memfd.";
+		}
 	}
 
 	if (dlogMfd != -1) {
@@ -322,14 +326,19 @@ void ThreadLogging::init() {
 
 		this->detailedFile = new QFile();
 		// buffered by WriteBuffer
-		this->detailedFile->open(dlogMfd, QFile::ReadWrite | QFile::Unbuffered, QFile::AutoCloseHandle);
-		this->detailedWriter.setDevice(this->detailedFile);
+		if (this->detailedFile
+		        ->open(dlogMfd, QFile::ReadWrite | QFile::Unbuffered, QFile::AutoCloseHandle))
+		{
+			this->detailedWriter.setDevice(this->detailedFile);
 
-		if (!this->detailedWriter.writeHeader()) {
-			qCCritical(logLogging) << "Could not write header for detailed logs.";
-			this->detailedWriter.setDevice(nullptr);
-			delete this->detailedFile;
-			this->detailedFile = nullptr;
+			if (!this->detailedWriter.writeHeader()) {
+				qCCritical(logLogging) << "Could not write header for detailed logs.";
+				this->detailedWriter.setDevice(nullptr);
+				delete this->detailedFile;
+				this->detailedFile = nullptr;
+			}
+		} else {
+			qCCritical(logLogging) << "Failed to open early detailed logging memfd.";
 		}
 	}
 
diff --git a/src/crash/handler.cpp b/src/crash/handler.cpp
index 1433a87..43a9792 100644
--- a/src/crash/handler.cpp
+++ b/src/crash/handler.cpp
@@ -77,7 +77,11 @@ void CrashHandler::setRelaunchInfo(const RelaunchInfo& info) {
 	}
 
 	QFile file;
-	file.open(this->d->infoFd, QFile::ReadWrite);
+
+	if (!file.open(this->d->infoFd, QFile::ReadWrite)) {
+		qCCritical(logCrashHandler
+		) << "Failed to open instance info memfd, crash recovery will not work.";
+	}
 
 	QDataStream ds(&file);
 	ds << info;
diff --git a/src/crash/main.cpp b/src/crash/main.cpp
index b9f0eab..6571660 100644
--- a/src/crash/main.cpp
+++ b/src/crash/main.cpp
@@ -161,7 +161,10 @@ void qsCheckCrash(int argc, char** argv) {
 		auto infoFd = qEnvironmentVariable("__QUICKSHELL_CRASH_INFO_FD").toInt();
 
 		QFile file;
-		file.open(infoFd, QFile::ReadOnly, QFile::AutoCloseHandle);
+		if (!file.open(infoFd, QFile::ReadOnly, QFile::AutoCloseHandle)) {
+			qFatal() << "Failed to open instance info fd.";
+		}
+
 		file.seek(0);
 
 		auto ds = QDataStream(&file);
diff --git a/src/launch/main.cpp b/src/launch/main.cpp
index 2bcbebd..7a801fc 100644
--- a/src/launch/main.cpp
+++ b/src/launch/main.cpp
@@ -32,7 +32,10 @@ void checkCrashRelaunch(char** argv, QCoreApplication* coreApplication) {
 		auto lastInfoFd = lastInfoFdStr.toInt();
 
 		QFile file;
-		file.open(lastInfoFd, QFile::ReadOnly, QFile::AutoCloseHandle);
+		if (!file.open(lastInfoFd, QFile::ReadOnly, QFile::AutoCloseHandle)) {
+			qFatal() << "Failed to open crash info fd. Cannot restart.";
+		}
+
 		file.seek(0);
 
 		auto ds = QDataStream(&file);
diff --git a/src/services/mpris/player.cpp b/src/services/mpris/player.cpp
index 85b2b3b..fe8b349 100644
--- a/src/services/mpris/player.cpp
+++ b/src/services/mpris/player.cpp
@@ -100,7 +100,7 @@ MprisPlayer::MprisPlayer(const QString& address, QObject* parent): QObject(paren
 		} else return static_cast<qlonglong>(-1);
 	});
 
-	this->bLengthSupported.setBinding([this]() { return this->bInternalLength != -1; });
+	this->bLengthSupported.setBinding([this]() { return this->bInternalLength.value() != -1; });
 
 	this->bIsPlaying.setBinding([this]() {
 		return this->bPlaybackState == MprisPlaybackState::Playing;
diff --git a/src/services/upower/device.cpp b/src/services/upower/device.cpp
index b2964f2..adf5923 100644
--- a/src/services/upower/device.cpp
+++ b/src/services/upower/device.cpp
@@ -73,7 +73,7 @@ UPowerDevice::UPowerDevice(QObject* parent): QObject(parent) {
 		return this->bType == UPowerDeviceType::Battery && this->bPowerSupply;
 	});
 
-	this->bHealthSupported.setBinding([this]() { return this->bHealthPercentage != 0; });
+	this->bHealthSupported.setBinding([this]() { return this->bHealthPercentage.value() != 0; });
 }
 
 void UPowerDevice::init(const QString& path) {
diff --git a/src/services/upower/powerprofiles.cpp b/src/services/upower/powerprofiles.cpp
index 4c40798..43615ae 100644
--- a/src/services/upower/powerprofiles.cpp
+++ b/src/services/upower/powerprofiles.cpp
@@ -164,6 +164,7 @@ QString DBusDataTransform<PowerProfile::Enum>::toWire(Data data) {
 	case PowerProfile::PowerSaver: return QStringLiteral("power-saver");
 	case PowerProfile::Balanced: return QStringLiteral("balanced");
 	case PowerProfile::Performance: return QStringLiteral("performance");
+	default: qFatal() << "Attempted to convert invalid power profile" << data << "to wire format.";
 	}
 }
 
diff --git a/src/wayland/wlr_layershell/wlr_layershell.cpp b/src/wayland/wlr_layershell/wlr_layershell.cpp
index 2b77690..947c51a 100644
--- a/src/wayland/wlr_layershell/wlr_layershell.cpp
+++ b/src/wayland/wlr_layershell/wlr_layershell.cpp
@@ -28,9 +28,10 @@ WlrLayershell::WlrLayershell(QObject* parent): ProxyWindowBase(parent) {
 			case Qt::BottomEdge: return this->bImplicitHeight + margins.top;
 			case Qt::LeftEdge: return this->bImplicitWidth + margins.right;
 			case Qt::RightEdge: return this->bImplicitWidth + margins.left;
-			default: return 0;
 			}
 		}
+
+		return 0;
 	});
 
 	this->bcExclusionEdge.setBinding([this] { return this->bAnchors.value().exclusionEdge(); });
diff --git a/src/x11/i3/ipc/connection.cpp b/src/x11/i3/ipc/connection.cpp
index ba010ed..c5d2db2 100644
--- a/src/x11/i3/ipc/connection.cpp
+++ b/src/x11/i3/ipc/connection.cpp
@@ -532,7 +532,7 @@ QString I3IpcEvent::eventToString(EventCode event) {
 	case EventCode::BarStateUpdate: return "bar_state_update"; break;
 	case EventCode::Input: return "input"; break;
 
-	case EventCode::Unknown: return "unknown"; break;
+	default: return "unknown"; break;
 	}
 }
 
diff --git a/src/x11/panel_window.cpp b/src/x11/panel_window.cpp
index 5d53fdd..c78b548 100644
--- a/src/x11/panel_window.cpp
+++ b/src/x11/panel_window.cpp
@@ -115,6 +115,8 @@ XPanelWindow::XPanelWindow(QObject* parent): ProxyWindowBase(parent) {
 				return 0;
 			}
 		}
+
+		return 0;
 	});
 
 	this->bcExclusionEdge.setBinding([this] { return this->bAnchors.value().exclusionEdge(); });