diff --git a/src/audio_core/in/audio_in_system.cpp b/src/audio_core/in/audio_in_system.cpp
index ec1f565736..9a5e0cea7f 100644
--- a/src/audio_core/in/audio_in_system.cpp
+++ b/src/audio_core/in/audio_in_system.cpp
@@ -14,14 +14,16 @@
 #include "core/core_timing.h"
 #include "core/hle/kernel/k_event.h"
 
+namespace AudioCore::AudioIn {
+
 // See texture_cache/util.h
 template<typename T, size_t N>
 #if BOOST_VERSION >= 108100 || __GNUC__ > 12
-[[nodiscard]] boost::container::static_vector<T, N> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
+[[nodiscard]] static inline boost::container::static_vector<T, N> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
     return v;
 }
 #else
-[[nodiscard]] std::vector<T> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
+[[nodiscard]] static inline std::vector<T> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
     std::vector<T> u;
     for (auto const& e : v)
         u.push_back(e);
@@ -29,8 +31,6 @@ template<typename T, size_t N>
 }
 #endif
 
-namespace AudioCore::AudioIn {
-
 System::System(Core::System& system_, Kernel::KEvent* event_, const size_t session_id_)
     : system{system_}, buffer_event{event_},
       session_id{session_id_}, session{std::make_unique<DeviceSession>(system_)} {}
diff --git a/src/audio_core/out/audio_out_system.cpp b/src/audio_core/out/audio_out_system.cpp
index dcb0d0694e..f0ee2386e6 100644
--- a/src/audio_core/out/audio_out_system.cpp
+++ b/src/audio_core/out/audio_out_system.cpp
@@ -14,14 +14,15 @@
 #include "core/core_timing.h"
 #include "core/hle/kernel/k_event.h"
 
+namespace AudioCore::AudioOut {
 // See texture_cache/util.h
 template<typename T, size_t N>
 #if BOOST_VERSION >= 108100 || __GNUC__ > 12
-[[nodiscard]] boost::container::static_vector<T, N> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
+[[nodiscard]] static inline boost::container::static_vector<T, N> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
     return v;
 }
 #else
-[[nodiscard]] std::vector<T> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
+[[nodiscard]] static inline std::vector<T> FixStaticVectorADL(const boost::container::static_vector<T, N>& v) {
     std::vector<T> u;
     for (auto const& e : v)
         u.push_back(e);
@@ -29,8 +30,6 @@ template<typename T, size_t N>
 }
 #endif
 
-namespace AudioCore::AudioOut {
-
 System::System(Core::System& system_, Kernel::KEvent* event_, size_t session_id_)
     : system{system_}, buffer_event{event_},
       session_id{session_id_}, session{std::make_unique<DeviceSession>(system_)} {}
diff --git a/src/video_core/dirty_flags.cpp b/src/video_core/dirty_flags.cpp
index fa92563628..8d345cffec 100644
--- a/src/video_core/dirty_flags.cpp
+++ b/src/video_core/dirty_flags.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
diff --git a/src/video_core/renderer_opengl/gl_state_tracker.cpp b/src/video_core/renderer_opengl/gl_state_tracker.cpp
index 4430124b7b..eda54caf66 100644
--- a/src/video_core/renderer_opengl/gl_state_tracker.cpp
+++ b/src/video_core/renderer_opengl/gl_state_tracker.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
diff --git a/src/video_core/renderer_vulkan/vk_state_tracker.cpp b/src/video_core/renderer_vulkan/vk_state_tracker.cpp
index 32225c9fa3..dc5326bfbb 100644
--- a/src/video_core/renderer_vulkan/vk_state_tracker.cpp
+++ b/src/video_core/renderer_vulkan/vk_state_tracker.cpp
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project