diff --git a/.gitmodules b/.gitmodules
index 984a35c..ff251b1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -211,3 +211,12 @@
 [submodule "pkg/mozilla-common"]
 	path = pkg/mozilla-common
 	url = https://aur.archlinux.org/mozilla-common.git
+[submodule "pkg/youplay"]
+	path = pkg/youplay
+	url = https://aur.archlinux.org/youplay.git
+[submodule "pkg/python-mpv"]
+	path = pkg/python-mpv
+	url = https://aur.archlinux.org/python-mpv.git
+[submodule "pkg/vulkan-headers-git"]
+	path = pkg/vulkan-headers-git
+	url = https://aur.archlinux.org/vulkan-headers-git.git
diff --git a/build-pkg/pkglist-AUR.txt b/build-pkg/pkglist-AUR.txt
index 91dac6b..0ec2320 100644
--- a/build-pkg/pkglist-AUR.txt
+++ b/build-pkg/pkglist-AUR.txt
@@ -1,4 +1,4 @@
-adwaita-qt aurutils balena-etcher calindori-git chili-sddm-theme chromaprint-fftw crema davs2 decklink-sdk discord_arch_electron firefox-profile-switcher-connector flite1-patched handbrake-full intellij-idea-ultimate-edition jellyfin-bin kirigami-addons-git lensfun-git libklvanc-git libopenmpt-svn librist libwacom-surface mauikit-git meta-group-base-devel mkcue mozilla-common mugshot ncurses5-compat-libs nextcloud-client-git nordic-kde-git opencl-amd openh264 pocketsphinx portfolio-file-manager pycharm-professional pyspread qt4 qt-installer-framework sddm-theme-deepin-git shine signal-desktop-beta-bin softmaker-office-2021-bin sphinxbase tagspaces-bin timeshift ttf-material-design-icons-git ttf-unifont uavs3d umldesigner vo-amrwbenc vobcopy vulkan-amdgpu-pro vulkan-headers-git wkhtmltopdf-static wps-office x264-git xavs xavs2 xfce4-meta xfce4-theme-switcher xorg-meta xournalpp-git yay zotero
-adwaita-qt4 fedora-firefox-wayland-bin ffmpeg-amd-full kclock riseup-vpn
+adwaita-qt aurutils balena-etcher calindori-git chili-sddm-theme chromaprint-fftw crema davs2 decklink-sdk discord_arch_electron firefox-profile-switcher-connector flite1-patched handbrake-full intellij-idea-ultimate-edition jellyfin-bin kirigami-addons-git lensfun-git libklvanc-git libopenmpt-svn librist libwacom-surface mauikit-git meta-group-base-devel mkcue mozilla-common mugshot ncurses5-compat-libs nextcloud-client-git nordic-kde-git opencl-amd openh264 portfolio-file-manager pycharm-professional pyspread python-mpv qt4 qt-installer-framework sddm-theme-deepin-git shine signal-desktop-beta-bin softmaker-office-2021-bin sphinxbase tagspaces-bin timeshift ttf-material-design-icons-git ttf-unifont uavs3d umldesigner vo-amrwbenc vobcopy vulkan-amdgpu-pro vulkan-headers-git wkhtmltopdf-static x264-git xavs xavs2 xfce4-meta xfce4-theme-switcher xorg-meta xournalpp-git yay zotero
+adwaita-qt4 fedora-firefox-wayland-bin ffmpeg-amd-full kclock pocketsphinx riseup-vpn youplay
 
 holo jellyfin
diff --git a/pkg/de-p1st-gnupg/README.md b/pkg/de-p1st-gnupg/README.md
index 3675c74..3289784 100644
--- a/pkg/de-p1st-gnupg/README.md
+++ b/pkg/de-p1st-gnupg/README.md
@@ -11,6 +11,9 @@
 GnuPG german mini HowTo:
 * [pdf](GnuPG_MiniHowto_ger_20200215.pdf)
 
+`makepkg` and `pacman` use different PGP keyrings:
+* [Two PGP Keyrings in Arch Linux](Two%20PGP%20Keyrings%20for%20Package%20Management%20in%20Arch%20Linux%20%7C%20Allan%20McRae.pdf)
+
 One can use `/etc/gnupg/gpgconf.conf` to configure gpg and gpg-agent. However, not all options are available ...
 
 ```shell
diff --git a/pkg/de-p1st-gnupg/Two PGP Keyrings for Package Management in Arch Linux | Allan McRae.pdf b/pkg/de-p1st-gnupg/Two PGP Keyrings for Package Management in Arch Linux | Allan McRae.pdf
new file mode 100644
index 0000000..e188545
Binary files /dev/null and b/pkg/de-p1st-gnupg/Two PGP Keyrings for Package Management in Arch Linux | Allan McRae.pdf differ
diff --git a/pkg/nextcloud-client-git b/pkg/nextcloud-client-git
index 4a0df1c..718a1c6 160000
--- a/pkg/nextcloud-client-git
+++ b/pkg/nextcloud-client-git
@@ -1 +1 @@
-Subproject commit 4a0df1c24e26f1c27baf051970ea811244d63082
+Subproject commit 718a1c64fece7ee1a456ae699305978e3a20c212
diff --git a/pkg/python-mpv b/pkg/python-mpv
new file mode 160000
index 0000000..d2fd40a
--- /dev/null
+++ b/pkg/python-mpv
@@ -0,0 +1 @@
+Subproject commit d2fd40af6e2a46ee363d10cdc20e167df6aa8b0b
diff --git a/pkg/vulkan-headers-git b/pkg/vulkan-headers-git
new file mode 160000
index 0000000..aefbd01
--- /dev/null
+++ b/pkg/vulkan-headers-git
@@ -0,0 +1 @@
+Subproject commit aefbd01d02c78a085019140e1d1e166f1feba9e0
diff --git a/pkg/wps-office b/pkg/wps-office
deleted file mode 160000
index 74dc33e..0000000
--- a/pkg/wps-office
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 74dc33e757b953b2f897d21b12dc653d1f314139
diff --git a/pkg/youplay b/pkg/youplay
new file mode 160000
index 0000000..581e72e
--- /dev/null
+++ b/pkg/youplay
@@ -0,0 +1 @@
+Subproject commit 581e72e8ae78f8aa3e5be8523a32ef6cfc671088