diff --git a/.ci/license-header.sh b/.ci/license-header.sh
index 986b364845..e78afb9857 100755
--- a/.ci/license-header.sh
+++ b/.ci/license-header.sh
@@ -79,7 +79,7 @@ check_header() {
 
 	header="$(pcre_header "$begin")"
 
-	if ! echo "$content" | grep -Pzo "$header" > /dev/null; then
+	if ! echo "$content" | grep -zo "$header" > /dev/null; then
 		# SRC_FILES is Kotlin/C++
 		# OTHER_FILES is sh, CMake
 		case "$begin" in
diff --git a/.ci/windows/build.sh b/.ci/windows/build.sh
old mode 100644
new mode 100755
diff --git a/CMakeModules/Findzstd.cmake b/CMakeModules/Findzstd.cmake
index 17efec2192..abcdbc2a3e 100644
--- a/CMakeModules/Findzstd.cmake
+++ b/CMakeModules/Findzstd.cmake
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 # SPDX-FileCopyrightText: 2022 yuzu Emulator Project
 # SPDX-License-Identifier: GPL-2.0-or-later
 
diff --git a/src/common/fs/file.cpp b/src/common/fs/file.cpp
index 722ba41949..8a3135e0ed 100644
--- a/src/common/fs/file.cpp
+++ b/src/common/fs/file.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
diff --git a/src/video_core/host1x/codecs/decoder.cpp b/src/video_core/host1x/codecs/decoder.cpp
old mode 100755
new mode 100644
diff --git a/tools/generate-legacy-icons.sh b/tools/generate-legacy-icons.sh
index 9bf14e8093..8dad11470e 100755
--- a/tools/generate-legacy-icons.sh
+++ b/tools/generate-legacy-icons.sh
@@ -1,5 +1,8 @@
 #!/bin/sh -e
 
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 # Generate SDK <26 icons for android
 # requires imagemagick, inkscape
 
diff --git a/tools/translations/lupdate.sh b/tools/translations/lupdate.sh
index c0b7dba9f6..0442d25d02 100755
--- a/tools/translations/lupdate.sh
+++ b/tools/translations/lupdate.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 for i in dist/languages/*.ts; do
     SRC=en_US
     TARGET=`head -n1 $i | awk -F 'language="' '{split($2, a, "\""); print a[1]}'`
diff --git a/tools/translations/qt-source.sh b/tools/translations/qt-source.sh
index c74bd0b091..3480070624 100755
--- a/tools/translations/qt-source.sh
+++ b/tools/translations/qt-source.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 SRC=en_US
 TARGET=en_US
 
diff --git a/tools/translations/update-translations.sh b/tools/translations/update-translations.sh
index e95b51da91..8bcd79142f 100755
--- a/tools/translations/update-translations.sh
+++ b/tools/translations/update-translations.sh
@@ -1,5 +1,8 @@
 #!/bin/sh
 
+# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 command -v tx-cli && COMMAND=tx-cli
 command -v tx && COMMAND=tx