diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 737ea98..f58ecb5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -54,7 +54,6 @@ variables:
   - oracle-7-desktop
   - postman
   - signal
-  - slack
   - steam
   - teams
   - tracelabs
@@ -133,7 +132,7 @@ build_app_images:
     - aws-autoscale
   parallel:
     matrix:
-      - KASM_IMAGE: [doom, sublime-text, gimp, vs-code, slack, teams, only-office, zoom, signal, steam, postman, insomnia, zsnes, vlc, maltego, telegram, hunchly, java-dev, terminal, vmware-horizon, remmina, rdesktop, discord, libre-office, thunderbird, atom, audacity, deluge, filezilla, inkscape, pinta, qbittorrent]
+      - KASM_IMAGE: [doom, sublime-text, gimp, vs-code, teams, only-office, zoom, signal, steam, postman, insomnia, zsnes, vlc, maltego, telegram, hunchly, java-dev, terminal, vmware-horizon, remmina, rdesktop, discord, libre-office, thunderbird, atom, audacity, deluge, filezilla, inkscape, pinta, qbittorrent]
 
 build_ubuntu_desktop_images:
   stage: build
@@ -430,7 +429,7 @@ build_schedules_app_images:
     - aws-autoscale
   parallel:
     matrix:
-      - KASM_IMAGE: [doom, sublime-text, gimp, vs-code, slack, teams, only-office, zoom, signal, steam, postman, insomnia, zsnes, vlc, maltego, telegram, hunchly, java-dev, terminal, vmware-horizon, remmina, rdesktop, discord, libre-office, thunderbird, atom, audacity, deluge, filezilla, inkscape, pinta, qbittorrent]
+      - KASM_IMAGE: [doom, sublime-text, gimp, vs-code, teams, only-office, zoom, signal, steam, postman, insomnia, zsnes, vlc, maltego, telegram, hunchly, java-dev, terminal, vmware-horizon, remmina, rdesktop, discord, libre-office, thunderbird, atom, audacity, deluge, filezilla, inkscape, pinta, qbittorrent]
 
 build_schedules_ubuntu_desktop_images:
   image: ${ORG_NAME}/docker-buildx-private:develop
@@ -559,7 +558,6 @@ update_readmes:
           - rdesktop
           - remmina
           - signal
-          - slack
           - steam
           - sublime-text
           - teams
diff --git a/dockerfile-kasm-desktop-deluxe b/dockerfile-kasm-desktop-deluxe
index 565ecc5..12e5c33 100644
--- a/dockerfile-kasm-desktop-deluxe
+++ b/dockerfile-kasm-desktop-deluxe
@@ -45,11 +45,6 @@ COPY ./src/ubuntu/install/vs_code $INST_SCRIPTS/vs_code/
 RUN bash $INST_SCRIPTS/vs_code/install_vs_code.sh  && rm -rf $INST_SCRIPTS/vs_code/
 
 
-### Install Slack
-COPY ./src/ubuntu/install/slack $INST_SCRIPTS/slack/
-RUN bash $INST_SCRIPTS/slack/install_slack.sh  && rm -rf $INST_SCRIPTS/slack/
-
-
 ### Install NextCloud
 COPY ./src/ubuntu/install/nextcloud $INST_SCRIPTS/nextcloud/
 RUN bash $INST_SCRIPTS/nextcloud/install_nextcloud.sh  && rm -rf $INST_SCRIPTS/nextcloud/
diff --git a/dockerfile-kasm-opensuse-15-desktop b/dockerfile-kasm-opensuse-15-desktop
index f52a988..88eae7c 100644
--- a/dockerfile-kasm-opensuse-15-desktop
+++ b/dockerfile-kasm-opensuse-15-desktop
@@ -40,10 +40,6 @@ RUN bash $INST_SCRIPTS/sublime_text/install_sublime_text.sh  && rm -rf $INST_SCR
 COPY ./src/opensuse/install/vs_code $INST_SCRIPTS/vs_code/
 RUN bash $INST_SCRIPTS/vs_code/install_vs_code.sh  && rm -rf $INST_SCRIPTS/vs_code/
 
-### Install Slack
-COPY ./src/opensuse/install/slack $INST_SCRIPTS/slack/
-RUN bash $INST_SCRIPTS/slack/install_slack.sh  && rm -rf $INST_SCRIPTS/slack/
-
 ### Install NextCloud
 COPY ./src/ubuntu/install/nextcloud $INST_SCRIPTS/nextcloud/
 RUN bash $INST_SCRIPTS/nextcloud/install_nextcloud.sh  && rm -rf $INST_SCRIPTS/nextcloud/
diff --git a/dockerfile-kasm-oracle-7-desktop b/dockerfile-kasm-oracle-7-desktop
index 21b89f9..f3efca1 100644
--- a/dockerfile-kasm-oracle-7-desktop
+++ b/dockerfile-kasm-oracle-7-desktop
@@ -40,10 +40,6 @@ RUN bash $INST_SCRIPTS/sublime_text/install_sublime_text.sh  && rm -rf $INST_SCR
 COPY ./src/oracle/install/vs_code $INST_SCRIPTS/vs_code/
 RUN bash $INST_SCRIPTS/vs_code/install_vs_code.sh  && rm -rf $INST_SCRIPTS/vs_code/
 
-### Install Slack
-COPY ./src/oracle/install/slack $INST_SCRIPTS/slack/
-RUN bash $INST_SCRIPTS/slack/install_slack.sh  && rm -rf $INST_SCRIPTS/slack/
-
 ### Install Remmina
 COPY ./src/ubuntu/install/remmina $INST_SCRIPTS/remmina/
 RUN bash $INST_SCRIPTS/remmina/install_remmina.sh  && rm -rf $INST_SCRIPTS/remmina/
diff --git a/dockerfile-kasm-oracle-8-desktop b/dockerfile-kasm-oracle-8-desktop
index d339075..893eef4 100644
--- a/dockerfile-kasm-oracle-8-desktop
+++ b/dockerfile-kasm-oracle-8-desktop
@@ -42,11 +42,6 @@ COPY ./src/oracle/install/vs_code $INST_SCRIPTS/vs_code/
 RUN bash $INST_SCRIPTS/vs_code/install_vs_code.sh  && rm -rf $INST_SCRIPTS/vs_code/
 
 
-### Install Slack
-COPY ./src/oracle/install/slack $INST_SCRIPTS/slack/
-RUN bash $INST_SCRIPTS/slack/install_slack.sh  && rm -rf $INST_SCRIPTS/slack/
-
-
 ### Install NextCloud
 COPY ./src/ubuntu/install/nextcloud $INST_SCRIPTS/nextcloud/
 RUN bash $INST_SCRIPTS/nextcloud/install_nextcloud.sh  && rm -rf $INST_SCRIPTS/nextcloud/
diff --git a/dockerfile-kasm-ubuntu-focal-desktop b/dockerfile-kasm-ubuntu-focal-desktop
index 20b0cce..a537a80 100644
--- a/dockerfile-kasm-ubuntu-focal-desktop
+++ b/dockerfile-kasm-ubuntu-focal-desktop
@@ -41,11 +41,6 @@ COPY ./src/ubuntu/install/vs_code $INST_SCRIPTS/vs_code/
 RUN bash $INST_SCRIPTS/vs_code/install_vs_code.sh  && rm -rf $INST_SCRIPTS/vs_code/
 
 
-### Install Slack
-COPY ./src/ubuntu/install/slack $INST_SCRIPTS/slack/
-RUN bash $INST_SCRIPTS/slack/install_slack.sh  && rm -rf $INST_SCRIPTS/slack/
-
-
 ### Install NextCloud
 COPY ./src/ubuntu/install/nextcloud $INST_SCRIPTS/nextcloud/
 RUN bash $INST_SCRIPTS/nextcloud/install_nextcloud.sh  && rm -rf $INST_SCRIPTS/nextcloud/
diff --git a/dockerfile-kasm-ubuntu-jammy-desktop b/dockerfile-kasm-ubuntu-jammy-desktop
index cb0c91b..ae8b0c0 100644
--- a/dockerfile-kasm-ubuntu-jammy-desktop
+++ b/dockerfile-kasm-ubuntu-jammy-desktop
@@ -41,11 +41,6 @@ COPY ./src/ubuntu/install/vs_code $INST_SCRIPTS/vs_code/
 RUN bash $INST_SCRIPTS/vs_code/install_vs_code.sh  && rm -rf $INST_SCRIPTS/vs_code/
 
 
-### Install Slack
-COPY ./src/ubuntu/install/slack $INST_SCRIPTS/slack/
-RUN bash $INST_SCRIPTS/slack/install_slack.sh  && rm -rf $INST_SCRIPTS/slack/
-
-
 ### Install NextCloud
 COPY ./src/ubuntu/install/nextcloud $INST_SCRIPTS/nextcloud/
 RUN bash $INST_SCRIPTS/nextcloud/install_nextcloud.sh  && rm -rf $INST_SCRIPTS/nextcloud/