diff --git a/.ci/upload.sh b/.ci/upload.sh
index f2fa0e5..ce810cf 100644
--- a/.ci/upload.sh
+++ b/.ci/upload.sh
@@ -1,16 +1,33 @@
 #!/bin/bash
 
+is_kasmvnc() {
+  local package="$1";
+
+  echo "$package" | grep -q 'kasmvncserver_'
+}
+
 function prepare_upload_filename() {
   local package="$1";
 
+  if ! is_kasmvnc "$package"; then
+    export upload_filename="$package"
+    return
+  fi
+
   .ci/detect_os_arch_package_format "$package" > /tmp/os_arch_package_format;
   source /tmp/os_arch_package_format;
   detect_release_branch
+
+  detect_revision "$package" "$OS_ARCH"
+  if [ -n "$REVISION" ]; then
+    REVISION="_${REVISION}"
+  fi
+
   if [ -n "$RELEASE_BRANCH" ]; then
-    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}_${OS_ARCH}.${PACKAGE_FORMAT}";
+    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}${REVISION}_${OS_ARCH}.${PACKAGE_FORMAT}";
   else
     export SANITIZED_BRANCH="$(echo $CI_COMMIT_REF_NAME | sed 's/\//_/g')";
-    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}_${SANITIZED_BRANCH}_${CI_COMMIT_SHA:0:6}_${OS_ARCH}.${PACKAGE_FORMAT}";
+    export upload_filename="kasmvncserver_${PACKAGE_OS}_${RELEASE_VERSION}_${SANITIZED_BRANCH}_${CI_COMMIT_SHA:0:6}${REVISION}_${OS_ARCH}.${PACKAGE_FORMAT}";
   fi
 };
 
@@ -25,6 +42,7 @@ function upload_to_s3() {
   export BUILD_STATUS="{\"key\":\"doc\", \"state\":\"SUCCESSFUL\", \"name\":\"${upload_filename}\", \"url\":\"${S3_URL}\"}";
   curl --request POST --header "PRIVATE-TOKEN:${GITLAB_API_TOKEN}" "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/statuses/${CI_COMMIT_SHA}?state=success&name=build-url&target_url=${S3_URL}";
 };
+
 function prepare_to_run_scripts_and_s3_uploads() {
   export DEBIAN_FRONTEND=noninteractive;
   apt-get update;
@@ -38,3 +56,16 @@ detect_release_branch() {
     export RELEASE_BRANCH=1;
   fi
 }
+
+detect_revision() {
+  local package="$1"
+  local arch="$2"
+
+  REVISION=
+
+  if ! echo "$package" | grep -q '+'; then
+    return
+  fi
+
+  REVISION=$(echo "$package" | sed "s/_${arch}.\+//" | sed 's/.\++//')
+}
diff --git a/.dockerignore b/.dockerignore
deleted file mode 100644
index e052dcf..0000000
--- a/.dockerignore
+++ /dev/null
@@ -1 +0,0 @@
-builder/build
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 040fc5d..c8584fb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -34,6 +34,18 @@ build_ubuntu_bionic:
     paths:
       - output/
 
+build_ubuntu_bionic_libjpeg_turbo:
+  stage: build
+  before_script:
+    - *prepare_build
+  after_script:
+    - *prepare_artfacts
+  script:
+    - bash builder/build-package ubuntu bionic +libjpeg-turbo_latest
+  artifacts:
+    paths:
+      - output/
+
 build_ubuntu_focal:
   stage: build
   before_script:
@@ -103,7 +115,7 @@ upload:
     - export S3_BUILD_DIRECTORY="kasmvnc/${CI_COMMIT_SHA}"
     - prepare_to_run_scripts_and_s3_uploads
     - export RELEASE_VERSION=$(.ci/next_release_version "$CI_COMMIT_REF_NAME")
-    - for package in `find output/ -type f -name 'kasmvncserver_*.deb' -or -name '*.rpm'`; do
+    - for package in `find output/ -type f -name '*.deb' -or -name '*.rpm'`; do
         prepare_upload_filename "$package";
         echo;
         echo "File to upload $upload_filename";
diff --git a/builder/README.md b/builder/README.md
index d8c8f56..acae94e 100644
--- a/builder/README.md
+++ b/builder/README.md
@@ -3,8 +3,17 @@ Docker CE
 
 # Build a deb/rpm package
 ```
-# builder/build-package <os> <os_codename>
+# builder/build-package <os> <os_codename> <build_tag>
 # os_codename is what "lsb_release -c" outputs, e.g. buster, focal.
+#
+# build_tag allows building multiple versions of deb package (rpm not supported)
+# targeting a single distro release (e.g. Ubuntu Bionic). If build_tag is given,
+# the package name will include build_tag as part of Debian revision. For
+# example:
+# * with build_tag: kasmvncserver_0.9.1~beta-1+libjpeg-turbo-latest_amd64.deb
+# * without build_tag: kasmvncserver_0.9.1~beta-1_amd64.deb
+# You need to have .build and .deb.build for the build_tag.
+#
 # Packages will be placed under builder/build/
 
 builder/build-package ubuntu bionic
@@ -70,3 +79,14 @@ packages installed with XFCE.
 ```
 builder/test-deb-barebones ubuntu focal
 ```
+# CI development
+
+S3 upload code is extracted to various files in `.ci`. It's possible to iterate
+locally by doing stuff like this:
+
+```
+bash -c '
+. .ci/upload.sh;
+prepare_upload_filename "bionic/kasmvncserver_0.9.1~beta-1+libjpeg-turbo-latest_amd64.deb";
+echo $upload_filename;'
+```
diff --git a/builder/build-deb b/builder/build-deb
index 73751ef..e2e1093 100755
--- a/builder/build-deb
+++ b/builder/build-deb
@@ -5,12 +5,17 @@ set -e
 cd "$(dirname "$0")/.."
 . builder/os_ver_cli.sh
 
-docker build -t debbuilder_${os}:${os_codename} -f \
-  builder/dockerfile.${os}_${os_codename}.deb.build .
-
-deb_output_dir=$(cd .. && echo $PWD)
 L_UID=$(id -u) #Ubuntu already has UID env var, but this should work on all Linix systems
 L_GID=$(id -g)
-docker run --rm -v "$deb_output_dir":/src --user $L_UID:$L_GID \
-  debbuilder_${os}:${os_codename} /bin/bash -c \
+
+builder_image=debbuilder_${os}:${os_codename}${build_tag_for_images}
+docker build --build-arg KASMVNC_PACKAGE_DIR="builder/build/${os_codename}" \
+  --build-arg L_UID="$L_UID" \
+  -t "$builder_image" -f \
+  builder/dockerfile.${os}_${os_codename}${build_tag}.deb.build .
+
+deb_output_dir=$(cd .. && echo $PWD)
+docker run --rm -v "$deb_output_dir":/src -e BUILD_TAG="$build_tag" \
+  --user "$L_UID:$L_GID" \
+  "$builder_image" /bin/bash -c \
   '/src/*/builder/build-deb-inside-docker'
diff --git a/builder/build-deb-inside-docker b/builder/build-deb-inside-docker
index faca5d0..734b846 100755
--- a/builder/build-deb-inside-docker
+++ b/builder/build-deb-inside-docker
@@ -2,12 +2,31 @@
 
 set -e
 
-cd "$(dirname "$0")/.."
+prepare_docker_copy_of_debian_dir_and_cd_to_id() {
+   cd "$(dirname "$0")/.."
+
+   local mounted_src_dir="$PWD"
+   local docker_src_dir="$HOME/src"
+
+   mkdir "$docker_src_dir"
+   cd "$docker_src_dir"
+   cp -a "$mounted_src_dir/debian/" .
+   ln -s "$mounted_src_dir/builder" .
+}
+
+prepare_docker_copy_of_debian_dir_and_cd_to_id
 
 os=$(lsb_release -is | tr '[:upper:]' '[:lower:]')
 os_codename=$(lsb_release -cs)
 os_dir="builder/build/${os_codename}"
 
+if [ "$BUILD_TAG" = "+libjpeg-turbo_latest" ]; then
+   echo 'libjpeg 62 libjpeg-turbo (>= 2.1.1)' > debian/shlibs.local
+
+   debian_revision="$(echo $BUILD_TAG | tr _ -)"
+   sed -i -e "1 s/)/$debian_revision)/" debian/changelog
+fi
+
 dpkg-buildpackage -us -uc -b
 mkdir -p "$os_dir"
 cp ../*.deb "$os_dir"
diff --git a/builder/build-package b/builder/build-package
index a21bf01..9718846 100755
--- a/builder/build-package
+++ b/builder/build-package
@@ -4,6 +4,7 @@ set -e
 
 os="$1"
 codename="$2"
+build_tag="$3"
 
 detect_package_format() {
   package_format=rpm
@@ -12,8 +13,17 @@ detect_package_format() {
   fi
 }
 
+warn_build_tag_not_supported_for_rpm_and_exit() {
+  if [[ "$build_tag" && "$package_format" = "rpm" ]]; then
+    echo >&2 "<build_tag> isn't supported for rpm"
+    exit 1
+  fi
+}
+
 cd "$(dirname "$0")/.."
 
 detect_package_format
-builder/build-tarball "$os" "$codename"
-builder/build-${package_format} "$os" "$codename"
+warn_build_tag_not_supported_for_rpm_and_exit
+
+builder/build-tarball "$os" "$codename" "$build_tag"
+builder/build-${package_format} "$os" "$codename" "$build_tag"
diff --git a/builder/build-rpm b/builder/build-rpm
index 39724d5..f3fdf2d 100755
--- a/builder/build-rpm
+++ b/builder/build-rpm
@@ -2,8 +2,18 @@
 
 set -e
 
+warn_build_tag_not_supported_for_rpm_and_exit() {
+  local build_tag="$1"
+
+  if [[ -n "$build_tag" ]]; then
+    echo >&2 "<build_tag> isn't supported for rpm"
+    exit 1
+  fi
+}
+
 cd "$(dirname "$0")/.."
 . builder/os_ver_cli.sh
+warn_build_tag_not_supported_for_rpm_and_exit "$build_tag"
 
 docker build -t kasmvnc_rpmbuilder_${os}:${os_codename} -f \
   builder/dockerfile.${os}_${os_codename}.rpm.build .
diff --git a/builder/build-tarball b/builder/build-tarball
index 3cf9d2f..3a85a8e 100755
--- a/builder/build-tarball
+++ b/builder/build-tarball
@@ -12,6 +12,13 @@ build_www_dir() {
   fi
 }
 
+move_libjpeg_turbo_to_os_specific_dir() {
+  chown $L_UID:$L_GID $shared_with_docker_dir/${os_codename}/*
+  mkdir -p $PWD/builder/build/${os_codename}/
+  mv $shared_with_docker_dir/${os_codename}/libjpeg-turbo*.deb \
+    $PWD/builder/build/${os_codename}/
+}
+
 shared_with_docker_dir=${GITLAB_SHARED_DIND_DIR:-/tmp}
 
 cd "$(dirname "$0")/.."
@@ -19,13 +26,21 @@ cd "$(dirname "$0")/.."
 
 build_www_dir
 
-docker build -t kasmvncbuilder:$os_codename \
-  -f builder/dockerfile.${os}_${os_codename}.build .
+builder_image=kasmvncbuilder:$os_codename${build_tag_for_images}
+docker build -t "$builder_image" \
+  -f builder/dockerfile.${os}_${os_codename}${build_tag}.build .
 mkdir -p builder/build
-docker run -v $shared_with_docker_dir:/build --rm kasmvncbuilder:$os_codename
+docker run -v $shared_with_docker_dir:/build -e BUILD_TAG="$build_tag" \
+  --rm "$builder_image"
 
 L_GID=$(id -g)
 L_UID=$(id -u)
 tarball_name="kasmvnc.${os}_${os_codename}.tar.gz"
+tarball_name_with_build_tag="kasmvnc.${os}_${os_codename}${build_tag}.tar.gz"
 chown $L_UID:$L_GID $shared_with_docker_dir/$tarball_name
-mv $shared_with_docker_dir/$tarball_name $PWD/builder/build/
+mv $shared_with_docker_dir/$tarball_name \
+  $PWD/builder/build/"$tarball_name_with_build_tag"
+
+if [ "$build_tag" = "+libjpeg-turbo_latest" ]; then
+  move_libjpeg_turbo_to_os_specific_dir
+fi
diff --git a/builder/build.sh b/builder/build.sh
index 75794db..4192f36 100755
--- a/builder/build.sh
+++ b/builder/build.sh
@@ -84,3 +84,7 @@ fi
 make servertarball
 
 cp kasmvnc*.tar.gz /build/kasmvnc.${KASMVNC_BUILD_OS}_${KASMVNC_BUILD_OS_CODENAME}.tar.gz
+if [ "$BUILD_TAG" = "+libjpeg-turbo_latest" ]; then
+	mkdir -p /build/${KASMVNC_BUILD_OS_CODENAME}/
+	cp /libjpeg-turbo/libjpeg*.deb /build/${KASMVNC_BUILD_OS_CODENAME}/
+fi
diff --git a/builder/dockerfile.debian_bullseye.deb.build b/builder/dockerfile.debian_bullseye.deb.build
index 732c6a6..51bde4f 100644
--- a/builder/dockerfile.debian_bullseye.deb.build
+++ b/builder/dockerfile.debian_bullseye.deb.build
@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker
diff --git a/builder/dockerfile.debian_bullseye.deb.test b/builder/dockerfile.debian_bullseye.deb.test
index 3ad2600..90ee85d 100644
--- a/builder/dockerfile.debian_bullseye.deb.test
+++ b/builder/dockerfile.debian_bullseye.deb.test
@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 
diff --git a/builder/dockerfile.debian_buster.barebones.deb.test b/builder/dockerfile.debian_buster.barebones.deb.test
index 12049c6..43147af 100644
--- a/builder/dockerfile.debian_buster.barebones.deb.test
+++ b/builder/dockerfile.debian_buster.barebones.deb.test
@@ -1,8 +1,8 @@
 FROM debian:buster-slim
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
 RUN apt-get update && apt-get -y install xterm
 
 COPY startup/deb/kasmvncserver-easy-start /usr/local/bin
diff --git a/builder/dockerfile.debian_buster.deb.build b/builder/dockerfile.debian_buster.deb.build
index 9ca2b88..eb3a6bf 100644
--- a/builder/dockerfile.debian_buster.deb.build
+++ b/builder/dockerfile.debian_buster.deb.build
@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker
diff --git a/builder/dockerfile.debian_buster.deb.test b/builder/dockerfile.debian_buster.deb.test
index ef536ea..5b3753c 100644
--- a/builder/dockerfile.debian_buster.deb.test
+++ b/builder/dockerfile.debian_buster.deb.test
@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 
diff --git a/builder/dockerfile.kali_kali-rolling.deb.build b/builder/dockerfile.kali_kali-rolling.deb.build
index 240bd69..6d0ed1b 100644
--- a/builder/dockerfile.kali_kali-rolling.deb.build
+++ b/builder/dockerfile.kali_kali-rolling.deb.build
@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker
diff --git a/builder/dockerfile.kali_kali-rolling.deb.test b/builder/dockerfile.kali_kali-rolling.deb.test
index a189b9b..5d95f99 100644
--- a/builder/dockerfile.kali_kali-rolling.deb.test
+++ b/builder/dockerfile.kali_kali-rolling.deb.test
@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 
diff --git a/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.build b/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.build
new file mode 100644
index 0000000..7f6ca1d
--- /dev/null
+++ b/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.build
@@ -0,0 +1,39 @@
+FROM ubuntu:18.04
+
+ENV KASMVNC_BUILD_OS ubuntu
+ENV KASMVNC_BUILD_OS_CODENAME bionic
+ENV XORG_VER 1.20.10
+
+RUN sed -i 's$# deb-src$deb-src$' /etc/apt/sources.list
+
+RUN apt-get update && \
+      apt-get -y install sudo
+
+RUN apt-get update && apt-get -y build-dep xorg-server libxfont-dev
+RUN apt-get update && apt-get -y install cmake git libgnutls28-dev vim wget tightvncserver
+RUN apt-get update && apt-get -y install libpng-dev libtiff-dev libgif-dev libavcodec-dev libssl-dev
+
+RUN apt-get update && apt-get install -y cmake nasm gcc
+RUN git clone https://github.com/libjpeg-turbo/libjpeg-turbo.git
+RUN export MAKEFLAGS=-j`nproc`; cd libjpeg-turbo && cmake -G"Unix Makefiles" && make deb
+RUN export MAKEFLAGS=-j`nproc`; cd libjpeg-turbo && cmake -DCMAKE_INSTALL_PREFIX=/usr/local -G"Unix Makefiles" && make && make install
+
+# Additions for webp
+RUN cd /tmp && wget https://storage.googleapis.com/downloads.webmproject.org/releases/webp/libwebp-1.0.2.tar.gz
+RUN cd /tmp && tar -xzvf /tmp/libwebp-*
+RUN cd /tmp/libwebp-1.0.2 && \
+    ./configure --enable-static --disable-shared && \
+    make && make install
+
+# Fix for older required libs
+#RUN cd /tmp && wget http://launchpadlibrarian.net/347526424/libxfont1-dev_1.5.2-4ubuntu2_amd64.deb && \
+#    wget http://launchpadlibrarian.net/347526425/libxfont1_1.5.2-4ubuntu2_amd64.deb && \
+#    dpkg -i libxfont1_1.5.2-4ubuntu2_amd64.deb && \
+#    dpkg -i libxfont1-dev_1.5.2-4ubuntu2_amd64.deb
+
+RUN useradd -m docker && echo "docker:docker" | chpasswd && adduser docker sudo
+
+COPY --chown=docker:docker . /src
+
+USER docker
+ENTRYPOINT ["/src/builder/build.sh"]
diff --git a/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.build b/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.build
new file mode 100644
index 0000000..ab88621
--- /dev/null
+++ b/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.build
@@ -0,0 +1,23 @@
+FROM ubuntu:bionic
+
+RUN apt-get update && \
+      apt-get -y install vim build-essential devscripts equivs
+
+ARG KASMVNC_PACKAGE_DIR
+COPY $KASMVNC_PACKAGE_DIR/libjpeg-turbo*deb /tmp
+RUN apt-get install /tmp/libjpeg-turbo*deb
+
+# Install build-deps for the package.
+COPY ./debian/control /tmp
+RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
+
+ENV LD_LIBRARY_PATH="/opt/libjpeg-turbo/lib64/:$LD_LIBRARY_PATH"
+
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker
diff --git a/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.test b/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.test
new file mode 100644
index 0000000..9f3236b
--- /dev/null
+++ b/builder/dockerfile.ubuntu_bionic+libjpeg-turbo_latest.deb.test
@@ -0,0 +1,58 @@
+FROM ubuntu:bionic
+
+ENV DISPLAY=:1 \
+    VNC_PORT=8443 \
+    VNC_RESOLUTION=1280x720 \
+    MAX_FRAME_RATE=24 \
+    VNCOPTIONS="-PreferBandwidth -DynamicQualityMin=4 -DynamicQualityMax=7" \
+    HOME=/home/user \
+    TERM=xterm \
+    STARTUPDIR=/dockerstartup \
+    INST_SCRIPTS=/dockerstartup/install \
+    KASM_RX_HOME=/dockerstartup/kasmrx \
+    DEBIAN_FRONTEND=noninteractive \
+    VNC_COL_DEPTH=24 \
+    VNC_RESOLUTION=1280x1024 \
+    VNC_PW=vncpassword \
+    VNC_USER=user \
+    VNC_VIEW_ONLY_PW=vncviewonlypassword \
+    LD_LIBRARY_PATH=/opt/libjpeg-turbo/lib64/:/usr/local/lib/ \
+    OMP_WAIT_POLICY=PASSIVE \
+    SHELL=/bin/bash \
+    SINGLE_APPLICATION=0 \
+    KASMVNC_BUILD_OS=ubuntu \
+    KASMVNC_BUILD_OS_CODENAME=bionic
+
+EXPOSE $VNC_PORT
+
+WORKDIR $HOME
+
+### REQUIRED STUFF ###
+
+RUN apt-get update && apt-get install -y supervisor xfce4 xfce4-terminal xterm libnss-wrapper gettext wget
+RUN apt-get purge -y pm-utils xscreensaver*
+RUN apt-get update && apt-get install -y vim less
+RUN apt-get update && apt-get -y install lsb-release
+
+RUN echo 'source $STARTUPDIR/generate_container_user' >> $HOME/.bashrc
+
+RUN mkdir -p $STARTUPDIR
+COPY startup/ $STARTUPDIR
+
+### START CUSTOM STUFF ####
+
+ARG KASMVNC_PACKAGE_DIR
+COPY $KASMVNC_PACKAGE_DIR/libjpeg-turbo_*.deb /tmp
+RUN apt-get install /tmp/libjpeg-turbo*deb
+
+ARG BUILD_DEBIAN_REVISION
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*$BUILD_DEBIAN_REVISION*.deb /tmp
+RUN dpkg -i /tmp/*.deb; apt-get -yf install
+
+### END CUSTOM STUFF ###
+
+RUN chown -R 1000:0 $HOME
+USER 1000:ssl-cert
+WORKDIR $HOME
+
+ENTRYPOINT [ "/dockerstartup/vnc_startup.sh" ]
diff --git a/builder/dockerfile.ubuntu_bionic.deb.build b/builder/dockerfile.ubuntu_bionic.deb.build
index ac48856..a554ecb 100644
--- a/builder/dockerfile.ubuntu_bionic.deb.build
+++ b/builder/dockerfile.ubuntu_bionic.deb.build
@@ -7,4 +7,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker
diff --git a/builder/dockerfile.ubuntu_bionic.deb.test b/builder/dockerfile.ubuntu_bionic.deb.test
index 793c2ca..7230475 100644
--- a/builder/dockerfile.ubuntu_bionic.deb.test
+++ b/builder/dockerfile.ubuntu_bionic.deb.test
@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 ### END CUSTOM STUFF ###
 
diff --git a/builder/dockerfile.ubuntu_focal.barebones.deb.test b/builder/dockerfile.ubuntu_focal.barebones.deb.test
index 26b0c14..ae046ad 100644
--- a/builder/dockerfile.ubuntu_focal.barebones.deb.test
+++ b/builder/dockerfile.ubuntu_focal.barebones.deb.test
@@ -1,8 +1,8 @@
 FROM ubuntu:focal
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; apt-get update && dpkg -i /tmp/*.deb; apt-get -yf install
 RUN apt-get update && apt-get -y install xterm lsb-release
 
 RUN useradd -m foo && addgroup foo ssl-cert
diff --git a/builder/dockerfile.ubuntu_focal.deb.build b/builder/dockerfile.ubuntu_focal.deb.build
index 619a93d..8a4db12 100644
--- a/builder/dockerfile.ubuntu_focal.deb.build
+++ b/builder/dockerfile.ubuntu_focal.deb.build
@@ -9,4 +9,11 @@ RUN apt-get update && \
 COPY ./debian/control /tmp
 RUN apt-get update && echo YYY | mk-build-deps --install --remove /tmp/control
 
-USER 1000
+ARG L_UID
+RUN if [ "$L_UID" -eq 0 ]; then \
+      useradd -m docker; \
+    else \
+      useradd -m docker -u $L_UID;\
+    fi
+
+USER docker
diff --git a/builder/dockerfile.ubuntu_focal.deb.test b/builder/dockerfile.ubuntu_focal.deb.test
index 3397848..867dbd7 100644
--- a/builder/dockerfile.ubuntu_focal.deb.test
+++ b/builder/dockerfile.ubuntu_focal.deb.test
@@ -42,8 +42,8 @@ COPY startup/ $STARTUPDIR
 ### START CUSTOM STUFF ####
 
 ARG KASMVNC_PACKAGE_DIR
-COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp
-RUN dpkg -i /tmp/*.deb; apt-get -yf install
+COPY $KASMVNC_PACKAGE_DIR/kasmvncserver_*.deb /tmp/
+RUN rm -f /tmp/kasmvncserver_*+*.deb; dpkg -i /tmp/*.deb; apt-get -yf install
 
 RUN mkdir ~/.vnc && echo '/usr/bin/xfce4-session &' >> ~/.vnc/xstartup && \
   chmod +x ~/.vnc/xstartup
diff --git a/builder/os_ver_cli.sh b/builder/os_ver_cli.sh
index e1e230f..9dc4f80 100644
--- a/builder/os_ver_cli.sh
+++ b/builder/os_ver_cli.sh
@@ -3,6 +3,11 @@ default_os_codename=bionic
 
 os=${1:-$default_os}
 os_codename=${2:-$default_os_codename}
+build_tag="${3:-}"
+if [[ -n "$build_tag" ]]; then
+   build_tag_for_images="_${build_tag#+}"
+   build_debian_revision="$(echo $build_tag | tr _ -)"
+fi
 os_image="$os:$os_codename"
 
 echo "Building for $os_image"
diff --git a/builder/test-deb b/builder/test-deb
index 9114a3e..fa135d9 100755
--- a/builder/test-deb
+++ b/builder/test-deb
@@ -5,10 +5,12 @@ set -e
 cd "$(dirname "$0")"
 . ./os_ver_cli.sh
 
+tester_image=kasmvnctester_${os}:$os_codename${build_tag_for_images}
 docker build --build-arg KASMVNC_PACKAGE_DIR="build/${os_codename}" \
-  -t kasmvnctester_${os}:$os_codename \
-  -f dockerfile.${os}_${os_codename}.deb.test .
+  --build-arg BUILD_DEBIAN_REVISION="$build_debian_revision" \
+  -t "$tester_image" \
+  -f dockerfile.${os}_${os_codename}${build_tag}.deb.test .
 docker run -it -p 443:8443 --rm \
   -e KASMVNC_VERBOSE_LOGGING=$KASMVNC_VERBOSE_LOGGING \
   -e "VNC_USER=foo" -e "VNC_PW=foobar" \
-  kasmvnctester_${os}:$os_codename
+  "$tester_image"
diff --git a/debian/Makefile.to_fakebuild_tar_package b/debian/Makefile.to_fakebuild_tar_package
index dd097af..4a0938d 100644
--- a/debian/Makefile.to_fakebuild_tar_package
+++ b/debian/Makefile.to_fakebuild_tar_package
@@ -1,7 +1,7 @@
 TARGET_OS := $(shell lsb_release -is | tr '[:upper:]' '[:lower:]')
 TARGET_OS_CODENAME := $(shell lsb_release -cs | tr '[:upper:]' '[:lower:]')
 TARBALL_DIR := builder/build
-TARBALL := $(TARBALL_DIR)/kasmvnc.$(TARGET_OS)_$(TARGET_OS_CODENAME).tar.gz
+TARBALL := $(TARBALL_DIR)/kasmvnc.$(TARGET_OS)_$(TARGET_OS_CODENAME)$(BUILD_TAG).tar.gz
 TAR_DATA := $(shell mktemp -d)
 SRC := $(TAR_DATA)/usr/local
 SRC_BIN := $(SRC)/bin