diff --git a/cmake/macros/GenerateInstallers.cmake b/cmake/macros/GenerateInstallers.cmake
index 3b764c13da..78a7b5a804 100644
--- a/cmake/macros/GenerateInstallers.cmake
+++ b/cmake/macros/GenerateInstallers.cmake
@@ -5,7 +5,7 @@
 #  Created by Leonardo Murillo on 12/16/2015.
 #  Copyright 2015 High Fidelity, Inc.
 #  Copyright 2021 Vircadia contributors.
-#  Copyright 2022-2025 Overte e.V.
+#  Copyright 2022-2026 Overte e.V.
 #
 #  Distributed under the Apache License, Version 2.0.
 #  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
@@ -127,6 +127,17 @@ macro(GENERATE_INSTALLERS)
           "The resulting AppImage will not be able to run on most machines. "
           "Set APPIMAGE_IGNORE_OPTIMIZATION to continue anyway.")
     endif()
+
+    # Find and pass QMake to GenerateAppImage.cmake, since QMake tells linuxdeploy-plugin-qt where to find Qt.
+    find_package(Qt5 COMPONENTS Core REQUIRED)
+    get_target_property(Qt_Core_Location Qt5::Core LOCATION)
+    get_filename_component(QT_BIN_DIR ${Qt_Core_Location} DIRECTORY)
+    find_program(QMAKE_EXECUTABLE qmake PATHS ${QT_BIN_DIR} PATH_SUFFIXES qt5/bin NO_DEFAULT_PATH)
+    # Every variable starting with CPACK_* is automatically available inside CPack scripts.
+    set(CPACK_QMAKE_EXECUTABLE ${QMAKE_EXECUTABLE})
+    if (NOT CPACK_QMAKE_EXECUTABLE)
+        message(FATAL_ERROR "Could not find QMake at ${QT_BIN_DIR}. QMake is required by linuxdeploy-plugin-qt for finding Qt.")
+    endif ()
   endif ()
 
   # configure a cpack properties file for custom variables in template
diff --git a/cmake/modules/GenerateAppImage.cmake b/cmake/modules/GenerateAppImage.cmake
index 68190569f6..60b77c9d73 100644
--- a/cmake/modules/GenerateAppImage.cmake
+++ b/cmake/modules/GenerateAppImage.cmake
@@ -5,7 +5,7 @@
 #  This gets called by cmake/macros/GenerateInstaller.cmake and is intended to package Interface AppImages only.
 #
 #  Created by Julian Groß on 2025-04-12.
-#  Copyright 2025 Overte e.V.
+#  Copyright 2025-2026 Overte e.V.
 #
 #  Distributed under the Apache License, Version 2.0.
 #  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
@@ -62,6 +62,8 @@ execute_process(
       # https://github.com/probonopd/linuxdeployqt/issues/35
       # https://github.com/probonopd/linuxdeployqt/issues/35#issuecomment-382994446
       LINUXDEPLOY_EXCLUDED_LIBRARIES=libnss3.so\;libnssutil3.so
+      # QMake tells linuxdeploy-plugin-qt where to find Qt.
+      QMAKE=${CPACK_QMAKE_EXECUTABLE}
     ${LINUXDEPLOY_EXECUTABLE}
     --appdir=${CPACK_TEMPORARY_DIRECTORY}
     --executable=${CPACK_PACKAGE_DIRECTORY}/interface/interface
diff --git a/conanfile.py b/conanfile.py
index 0967c64695..3efb85df7c 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -36,6 +36,7 @@ class Overte(ConanFile):
         "qt*:qtwebengine": "True",
         "qt*:qtwebsockets": "True",
         "qt*:qtwebview": "True",
+        "qt*:qtx11extras": "True",  # Required by gpu-frame-player on Linux
         "qt*:qtxmlpatterns": "True",
         "qt*:qttools": "True",  # windeployqt for Windows
         "glad*:spec": "gl",
@@ -71,11 +72,11 @@ def requirements(self):
         self.requires("openexr/3.1.9")
         self.requires("openvr/2.2.3@overte/stable")
         self.requires("openxr/1.1.46@overte/stable")
-        self.requires("opus/1.4")
+        self.requires("opus/1.5.2")
         self.requires("polyvox/2025.09.19@overte/experimental#76ce908c1078988dceae5ad32ead2909")
         self.requires("quazip/1.4")
         self.requires("scribe/2019.02@overte/stable")
-        self.requires("sdl/2.32.8")
+        self.requires("sdl/2.32.10")
         self.requires("spirv-cross/1.3.268.0")
         self.requires("spirv-tools/1.3.268.0")
         self.requires("steamworks/158a@overte/prebuild")
@@ -85,9 +86,6 @@ def requirements(self):
         self.requires("zlib/1.3.1")
         self.requires("glm/0.9.9.5", force=True) # FIXME: update to version 1.0.1
         self.requires("jsoncpp/1.9.6", force=True)
-        # Fixes build errors on GCC 15. Check if this is still required when upgrading from sdl/2.30.3.
-        # https://github.com/conan-io/conan-center-index/issues/27265
-        self.requires("libiconv/1.18", force=True)
         openssl = "openssl/1.1.1q"
 
         if self.options.qt_source == "system":
@@ -97,7 +95,7 @@ def requirements(self):
         elif self.options.qt_source == "aqt":
             self.requires("qt/5.15.2@overte/aqt", force=True)
         else:
-            self.requires("qt/5.15.18-2026.01.04@overte/stable#30ca36fa18268c7c2de55c3d11102ab7", force=True)
+            self.requires("qt/5.15.18-2026.01.04@overte/stable#4fc772a2dbcd84731eb6ff9904e6e358", force=True)
 
         if self.settings.os == "Windows":
             self.requires("neuron/12.2@overte/prebuild")
diff --git a/tools/conan-profiles/linux b/tools/conan-profiles/linux
index d47214207a..63f9be5644 100644
--- a/tools/conan-profiles/linux
+++ b/tools/conan-profiles/linux
@@ -14,3 +14,25 @@ tools.build:cxxflags=['-include', 'cstdint']
 [options]
 # Required for building oneTBB.
 hwloc/*:shared=True
+
+# Options required for building Qt
+# Some Qt options are here rather than Overte's conanfile.py to allow for easier usage during Qt package development.
+# Version conflict and not needed.
+qt*:with_mysql=False
+# PulseAudio is used for audio output on Linux.
+qt*:with_pulseaudio=True
+# Required by qt:with_pulseaudio
+pulseaudio*:with_glib=True
+# Required for PulseAudio support in Qt.
+qt*:with_glib=True
+# libpq build error and not needed (PostgreSQL).
+qt*:with_pq=False
+# Open Database Connectivity
+# Avoid additional dependency on iconv.
+qt*:with_odbc=False
+# Build as shared, to avoid: `Invalid: NSS recipe cannot yet build static library. Contributions are welcome.`
+# Required by Qt WebEngine
+nss*:shared=True
+nspr*:shared=True
+# Work around `undefined reference` errors when building NSS.
+sqlite3*:shared=True