diff --git a/system/DisplayCAL/DisplayCAL.SlackBuild b/system/DisplayCAL/DisplayCAL.SlackBuild
new file mode 100644
index 0000000000..d0bb433451
--- /dev/null
+++ b/system/DisplayCAL/DisplayCAL.SlackBuild
@@ -0,0 +1,102 @@
+#!/bin/bash
+
+# Slackware build script for DisplayCAL
+
+# Copyright 2023 Fernando Lopez Jr. <fernando.lopezjr@gmail.com>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=DisplayCAL
+VERSION=${VERSION:-3.8.9.3}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+python2 setup.py install --root=$PKG
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/man
+mv $PKG/usr/share/man/man1 $PKG/usr/man/
+rm -rf $PKG/usr/share/man
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
+
+mv $PKG/usr/share/doc/ $PKG/usr/doc/
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+  CHANGES.html LICENSE.txt README.html \
+  $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+cat $CWD/doinst.sh > $PKG/install/doinst.sh
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
diff --git a/system/DisplayCAL/DisplayCAL.info b/system/DisplayCAL/DisplayCAL.info
new file mode 100644
index 0000000000..934707bae4
--- /dev/null
+++ b/system/DisplayCAL/DisplayCAL.info
@@ -0,0 +1,10 @@
+PRGNAM="DisplayCAL"
+VERSION="3.8.9.3"
+HOMEPAGE="https://displaycal.net/"
+DOWNLOAD="https://displaycal.net/download/DisplayCAL.tar.gz"
+MD5SUM="dafa7f892965ccd392bbfa292ad1422b"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Fernando Lopez Jr."
+EMAIL="fernando.lopezjr@gmail.com"
diff --git a/system/DisplayCAL/README b/system/DisplayCAL/README
new file mode 100644
index 0000000000..3258fa1387
--- /dev/null
+++ b/system/DisplayCAL/README
@@ -0,0 +1,8 @@
+DisplayCAL (formerly known as dispcalGUI) is a display calibration
+and profiling solution with a focus on accuracy and versatility
+(in fact, the author is of the honest opinion it may be the most
+accurate and versatile ICC compatible display profiling solution
+available anywhere). At its core it relies on ArgyllCMS, an advanced
+open source color management system, to take measurements, create
+calibrations and profiles, and for a variety of other advanced
+color related tasks.
diff --git a/system/DisplayCAL/doinst.sh b/system/DisplayCAL/doinst.sh
new file mode 100644
index 0000000000..0fb9c8b686
--- /dev/null
+++ b/system/DisplayCAL/doinst.sh
@@ -0,0 +1,14 @@
+if [ -x /usr/bin/update-desktop-database ]; then
+  /usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
+fi
+
+if [ -x /usr/bin/update-mime-database ]; then
+  /usr/bin/update-mime-database usr/share/mime >/dev/null 2>&1
+fi
+
+if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
+  if [ -x /usr/bin/gtk-update-icon-cache ]; then
+    /usr/bin/gtk-update-icon-cache -f usr/share/icons/hicolor >/dev/null 2>&1
+  fi
+fi
+
diff --git a/system/DisplayCAL/slack-desc b/system/DisplayCAL/slack-desc
new file mode 100644
index 0000000000..d18a4b6583
--- /dev/null
+++ b/system/DisplayCAL/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+          |-----handy-ruler------------------------------------------------------|
+DisplayCAL: DisplayCAL (display calibration and profiling)
+DisplayCAL:
+DisplayCAL: DisplayCAL (formerly known as dispcalGUI) is a display calibration
+DisplayCAL: and profiling solution with a focus on accuracy and versatility (in
+DisplayCAL: fact, the author is of the honest opinion it may be the most accurate
+DisplayCAL: and versatile ICC compatible display profiling solution available
+DisplayCAL: anywhere).
+DisplayCAL: At its core it relies on ArgyllCMS, an advanced open source color
+DisplayCAL: management system, to take measurements, create calibrations and
+DisplayCAL: profiles, and for a variety of other advanced color related tasks.
+DisplayCAL: