diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4ed8374..1226342 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -87,9 +87,8 @@ include(cmake/util.cmake)
 
 add_compile_options(-Wall -Wextra -Wno-vla-cxx-extension)
 
-# pipewire defines these, breaking PCH
+# pipewire defines this, breaking PCH
 add_compile_definitions(_REENTRANT)
-add_compile_options(-fno-strict-overflow)
 
 if (FRAME_POINTERS)
 	add_compile_options(-fno-omit-frame-pointer)
diff --git a/src/core/qmlglobal.cpp b/src/core/qmlglobal.cpp
index 6cac3aa..35504f6 100644
--- a/src/core/qmlglobal.cpp
+++ b/src/core/qmlglobal.cpp
@@ -26,7 +26,6 @@
 #include "../io/processcore.hpp"
 #include "generation.hpp"
 #include "iconimageprovider.hpp"
-#include "instanceinfo.hpp"
 #include "paths.hpp"
 #include "qmlscreen.hpp"
 #include "rootwrapper.hpp"
@@ -154,22 +153,6 @@ qint32 QuickshellGlobal::processId() const { // NOLINT
 	return getpid();
 }
 
-QString QuickshellGlobal::instanceId() const { // NOLINT
-	return InstanceInfo::CURRENT.instanceId;
-}
-
-QString QuickshellGlobal::shellId() const { // NOLINT
-	return InstanceInfo::CURRENT.shellId;
-}
-
-QString QuickshellGlobal::appId() const { // NOLINT
-	return InstanceInfo::CURRENT.appId;
-}
-
-QDateTime QuickshellGlobal::launchTime() const { // NOLINT
-	return InstanceInfo::CURRENT.launchTime;
-}
-
 qsizetype QuickshellGlobal::screensCount(QQmlListProperty<QuickshellScreenInfo>* /*unused*/) {
 	return QuickshellTracked::instance()->screens.size();
 }
diff --git a/src/core/qmlglobal.hpp b/src/core/qmlglobal.hpp
index 72055df..94b42f6 100644
--- a/src/core/qmlglobal.hpp
+++ b/src/core/qmlglobal.hpp
@@ -17,7 +17,6 @@
 
 #include "../io/processcore.hpp"
 #include "doc.hpp"
-#include "instanceinfo.hpp"
 #include "qmlscreen.hpp"
 
 ///! Accessor for some options under the Quickshell type.
@@ -84,21 +83,6 @@ class QuickshellGlobal: public QObject {
 	// clang-format off
 	/// Quickshell's process id.
 	Q_PROPERTY(qint32 processId READ processId CONSTANT);
-	/// A unique identifier for this Quickshell instance
-	Q_PROPERTY(QString instanceId READ instanceId CONSTANT)
-	/// The shell ID, used to differentiate between different shell configurations.
-	///
-	/// Defaults to a stable value derived from the config path.
-	/// Can be overridden with `//@ pragma ShellId <id>` in the root qml file.
-	Q_PROPERTY(QString shellId READ shellId CONSTANT)
-	/// The desktop application ID.
-	///
-	/// Defaults to `org.quickshell`.
-	/// Can be overridden with `//@ pragma AppId <id>` in the root qml file
-	/// or the `QS_APP_ID` environment variable.
-	Q_PROPERTY(QString appId READ appId CONSTANT)
-	/// The time at which this Quickshell instance was launched.
-	Q_PROPERTY(QDateTime launchTime READ launchTime CONSTANT)
 	/// All currently connected screens.
 	///
 	/// This property updates as connected screens change.
@@ -165,10 +149,6 @@ class QuickshellGlobal: public QObject {
 
 public:
 	[[nodiscard]] qint32 processId() const;
-	[[nodiscard]] QString instanceId() const;
-	[[nodiscard]] QString shellId() const;
-	[[nodiscard]] QString appId() const;
-	[[nodiscard]] QDateTime launchTime() const;
 
 	QQmlListProperty<QuickshellScreenInfo> screens();