diff --git a/.idea/vcs.xml b/.idea/vcs.xml
index 8641e63..e266c5e 100644
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@@ -13,6 +13,7 @@
     <mapping directory="$PROJECT_DIR$/pkg/chromaprint-fftw" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/pkg/crema" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/pkg/davs2" vcs="Git" />
+    <mapping directory="$PROJECT_DIR$/pkg/de-p1st-image-width-limit" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/pkg/decklink-sdk" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/pkg/discord_arch_electron" vcs="Git" />
     <mapping directory="$PROJECT_DIR$/pkg/fedora-firefox-wayland-bin" vcs="Git" />
diff --git a/build-pkg/Dockerfile b/build-pkg/Dockerfile
index f23295d..837dc30 100644
--- a/build-pkg/Dockerfile
+++ b/build-pkg/Dockerfile
@@ -23,8 +23,8 @@ RUN printf '\n[options]\nDisableDownloadTimeout\n' >> /etc/pacman.conf && \
     printf '\n[multilib]\nInclude = /etc/pacman.d/mirrorlist\n' >> /etc/pacman.conf && \
     \
     pacman -Syu --noconfirm && \
-    pacman -S --needed --noconfirm svn && \
-    pacman -S --needed --noconfirm multilib-devel
+    pacman -S --needed --noconfirm svn \
+                                   multilib-devel
 
 # 1. Set packager
 # 2. Store built packages in /out/
diff --git a/build-pkg/build-all b/build-pkg/build-all
index f34a6b2..49993d8 100755
--- a/build-pkg/build-all
+++ b/build-pkg/build-all
@@ -27,7 +27,8 @@ function start-docker() {
 }
 
 function update-build-image() {
-  sudo docker-compose build --pull
+  # "--no-cache" to always run the "pacman -Syu" build step
+  sudo docker-compose build --pull --no-cache
 }
 
 function build-pkg() {
@@ -91,9 +92,6 @@ before continuing with the next line.";
     is-installed "docker-compose" || return $?
   }
 
-  update-build-image || return $?
-
-
   # Read content of PKGLIST file to an array
   # For each line: build and push all space separated packages
   mapfile -t STAGES < "${PKGLIST}"
@@ -102,6 +100,8 @@ before continuing with the next line.";
     # trim leading/tailing whitespaces
     line="$(echo "${line}" | xargs)" || return $?
     space_separated_to_array line pkgs
+    # Rebuild the docker image with refreshed mirrors => this fetches packages that were built in a previous build stage
+    update-build-image || return $?
     # shellcheck disable=SC2154
     build-and-push "${pkgs[@]}" || exit $?
   done
diff --git a/build-pkg/build-all-without-docker.sh b/build-pkg/build-all-without-docker.sh
index 87e8f0a..57d8b5f 100755
--- a/build-pkg/build-all-without-docker.sh
+++ b/build-pkg/build-all-without-docker.sh
@@ -52,8 +52,11 @@ function build-pkg() {
 
 function push-pkg() {
   arch-repo-push-new || return $?  # Push remote repository
-  echo "Running 'pacman -Sy' to update de-p1st mirror database ..."
-  sudo pacman -Sy || return $?
+  echo "Running 'pacman -Syu' to update de-p1st mirror database ..."
+
+  # Theoretically "-Sy" would be enough to update the mirrors,
+  # but pacman does not support partial updates!
+  sudo pacman -Syu || return $?
 }
 
 function build-and-push() {
diff --git a/build-pkg/run.sh b/build-pkg/run.sh
index d68b1bf..103df89 100644
--- a/build-pkg/run.sh
+++ b/build-pkg/run.sh
@@ -9,9 +9,6 @@ function main(){
   # Write-permission for user "build"
   sudo chown "build:wheel" /out
 
-  # Refresh mirrors, e.g. to fetch packages that were built in the previous build stage
-  sudo pacman -Sy
-
   PKG=/pkg/"${1}"
   shift;  # remove first arg
   echo "Looking for PKGBUILD in ${PKG} ..."
diff --git a/git-pull b/git-pull
index 6552e72..0c29407 100755
--- a/git-pull
+++ b/git-pull
@@ -1,5 +1,5 @@
 #!/bin/bash
 
 git pull || exit $?
-git submodule foreach 'git checkout master' || exit $?
+git submodule foreach 'git checkout master || git checkout main' || exit $?
 git submodule foreach 'if git pull | grep '\''^Updating'\''; then printf " %s" "$(basename $sm_path)" >> $toplevel/build-pkg/pkglist.tmp; fi'
diff --git a/pkg/pycharm-professional b/pkg/pycharm-professional
index b717100..19310af 160000
--- a/pkg/pycharm-professional
+++ b/pkg/pycharm-professional
@@ -1 +1 @@
-Subproject commit b7171006c0752af066c64eb520c1c5b3eb62e486
+Subproject commit 19310af76b80fcdfce8087d0a0961491dac75118
diff --git a/pkg/signal-desktop-beta-bin b/pkg/signal-desktop-beta-bin
index af7ac0e..c9aa41f 160000
--- a/pkg/signal-desktop-beta-bin
+++ b/pkg/signal-desktop-beta-bin
@@ -1 +1 @@
-Subproject commit af7ac0ec4eda146420677cb68098a43fdbaa2ec0
+Subproject commit c9aa41fc3a224e6466a96894efa9b4f94e0ac539
diff --git a/pkg/ttf-unifont b/pkg/ttf-unifont
index 9b3b6c0..4e648a8 160000
--- a/pkg/ttf-unifont
+++ b/pkg/ttf-unifont
@@ -1 +1 @@
-Subproject commit 9b3b6c0b91ecbdd45aa5ebed89e1345097b42c8b
+Subproject commit 4e648a8a3b118d4b9903a454615eb7e4d53dcbb9