diff --git a/Makefile b/Makefile
index d3bc5d5..41e1844 100644
--- a/Makefile
+++ b/Makefile
@@ -1,15 +1,15 @@
-# Autogenerated at 12.04.2023 19:04 using ./gen-makefile
+# Autogenerated at 17.04.2023 15:46 using ./gen-makefile
 .DEFAULT_GOAL := help
 
 #===============================================
 #	Scripts listed in ./install
 #===============================================
 
-##apache: Install apache2 (latest)
-apache:
-	@./install/apache
+##apache2: Install apache2 (latest)
+apache2:
+	@./install/apache2
 
-##apt: Install bunch of software from apt
+##apt: Install software from apt
 apt:
 	@./install/apt
 
@@ -33,7 +33,7 @@ docker:
 dots:
 	@./install/dots
 
-##droidcam: Install droidcam v1.8.2
+##droidcam: Install droidcam v1.9.0
 droidcam:
 	@./install/droidcam
 
@@ -41,21 +41,21 @@ droidcam:
 droidcam-obs:
 	@./install/droidcam-obs
 
-##flameshot-build: [TODO] Build flameshot from src (latest)
-flameshot-build:
-	@./install/flameshot-build
+##flameshot: Install flameshot (latest)
+flameshot:
+	@./install/flameshot
 
 ##git: Install git (latest)
 git:
 	@./install/git
 
-##golang: Install golang v1.18.3
+##golang: Install golang v1.20.3
 golang:
 	@./install/golang
 
-##grubc: Install grub-customizer (latest) + ppa
-grubc:
-	@./install/grubc
+##grub-customizer: Install grub-customizer (latest + ppa)
+grub-customizer:
+	@./install/grub-customizer
 
 ##jbmono: Install JetBrains Mono fonts
 jbmono:
@@ -242,10 +242,18 @@ phpstack: php phptools
 #	Scripts listed in ./uninstall
 #===============================================
 
+##/apache2: Uninstall apache2
+/apache2:
+	@./uninstall/apache2
+
 ##/docker: Uninstall docker + ppa
 /docker:
 	@./uninstall/docker
 
+##/grub-customizer: Uninstall grub-customizer with ppa
+/grub-customizer:
+	@./uninstall/grub-customizer
+
 ##/lite-xl: Uninstall lite-xl
 /lite-xl:
 	@./uninstall/lite-xl
diff --git a/helpers b/helpers
index 25c27da..5dbcbe4 100644
--- a/helpers
+++ b/helpers
@@ -4,6 +4,40 @@ installed() {
     command -v "$1" >/dev/null 2>&1
 }
 
+installed2() {
+    dpkg --list | grep -qw "ii  $1"
+}
+
+apt_install() {
+    sudo apt install -y --autoremove "$*"
+}
+
+require() {
+    sw=()
+    for package in "$@"; do
+        if ! installed "$package" && ! installed2 "$package"; then
+            sw+=("$package")
+        fi
+    done
+    if [ ${#sw[@]} -gt 0 ]; then
+        info "This packages will be installed in your system:\n${sw[*]}"
+        apt_install "${sw[*]}"
+        [ $? -gt 0 ] && die "installation cancelled" 201
+    fi
+}
+
+require2() {
+    sw=()
+    for package in "$@"; do
+        if ! installed "$package" && ! installed2 "$package"; then
+            sw+=("$package")
+        fi
+    done
+    if [ ${#sw[@]} -gt 0 ]; then
+        die "This packages must be installed in your system:\n${sw[*]}" 200
+    fi
+}
+
 title() {
     [ "$1" ] && title="$1" || title="$(grep -m 1 -oP "(?<=^##makedesc:\s).*$" ${BASH_SOURCE[1]})"
     info
@@ -13,16 +47,13 @@ title() {
     info
 }
 
-require() {
-    if ! installed "$1"; then
-        if [ "$2" ]; then
-            die "'$1' must to be installed in your system" 200
-        else
-            info "Installing '$1' because it is required to continue"
-            sudo apt install "$1"
-            [ $? -gt 0 ] && die "installation cancelled" 201
-        fi
-    fi
+unpak_targz() {
+    require tar
+    tar -xzf "$1" -C "$2"
+}
+
+symlink() {
+    ln -sf "$1" "$2"
 }
 
 download() {
@@ -30,6 +61,16 @@ download() {
     wget "$1" -O "$2"
 }
 
+clone() {
+    require git
+    git clone $*
+}
+
+clone_quick() {
+    require git
+    git clone $* --depth=1 --single-branch
+}
+
 abspath() {
     echo $(realpath -q "${1/#\~/$HOME}")
 }
@@ -132,7 +173,6 @@ debug() {
     fi
 }
 
-
 verbose() {
     print "${BOLD}${IVRB}${RESET}${FYELLOW} $1 "
 }
@@ -155,7 +195,6 @@ warn() {
 
 error() {
     print "${BOLD}${BLRED}${FWHITE}${IERROR} Error: ${BRESET}${FLRED} $1 " >&2
-    # print_stacktrace
 }
 
 fatal() {
@@ -164,19 +203,8 @@ fatal() {
 }
 
 die() {
-    error "$1"
-    [ "$2" ] && exit $2 || exit 100
-}
-
-die_fatal() {
-    fatal "$1"
-    [ "$2" ] && exit $2 || exit 100
-}
-
-die_help() {
-    error "$1"
-    [ "$2" ] && is_function "$2".help && $2.help
-    [ "$3" ] && exit $3 || exit 100
+    error "${1:-halted}"
+    exit ${2:-100}
 }
 
 print_stacktrace() {
diff --git a/install/apache b/install/apache2
similarity index 74%
rename from install/apache
rename to install/apache2
index 54c6e2c..5d3f6ac 100755
--- a/install/apache
+++ b/install/apache2
@@ -1,6 +1,6 @@
 #!/bin/bash
 ##makedesc: Install apache2 (latest)
-[ -f `dirname $0`/../helpers ] && source `dirname $0`/../helpers || exit 255
+source `dirname $0`/../helpers || exit 255
 
 title
 
diff --git a/install/apt b/install/apt
index da6fc4d..a660bcf 100755
--- a/install/apt
+++ b/install/apt
@@ -1,62 +1,58 @@
 #!/bin/bash
-##makedesc: Install bunch of software from apt
+##makedesc: Install software from apt
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing software from apt..."
-echo "==============================================="
-echo
+title
 
 sudo apt update && \
-    sudo apt upgrade -y --autoremove
-
-sudo apt install -y \
-    alien \
-    apt-transport-https \
-    build-essential \
-    ca-certificates \
-    cmake \
-    curl \
-    dconf-editor \
-    default-jdk \
-    dialog \
-    gettext \
-    gnupg \
-    gparted \
-    hardinfo \
-    htop \
-    libaio1 \
-    libcurl4-gnutls-dev \
-    libexpat1-dev \
-    libghc-zlib-dev \
-    libssl-dev \
-    lsb-release \
-    lsp-plugins \
-    make \
-    mc \
-    meld \
-    nano \
-    neofetch \
-    net-tools \
-    nmap \
-    p7zip-full \
-    pulseeffects \
-    software-properties-common \
-    terminator \
-    ubuntu-restricted-extras \
-    unzip \
-    vlc \
-    ffmpeg \
-    xclip \
-    inotify-tools \
-    notify-osd \
-    fonts-open-sans \
-    libnotify-bin
-    # sqlitebrowser
-    # earlyoom \
-    # etckeeper \
-    # geoclue-2.0 \
-    # gnome-software \
-    # minder \
-    # redshift \
-    # redshift-gtk
+    sudo apt upgrade -y --autoremove && \
+    sudo apt install -y \
+        alien \
+        apt-transport-https \
+        build-essential \
+        ca-certificates \
+        cmake \
+        curl \
+        dconf-editor \
+        default-jdk \
+        dialog \
+        gettext \
+        gnupg \
+        gparted \
+        hardinfo \
+        htop \
+        libaio1 \
+        libcurl4-gnutls-dev \
+        libexpat1-dev \
+        libghc-zlib-dev \
+        libssl-dev \
+        lsb-release \
+        lsp-plugins \
+        make \
+        mc \
+        meld \
+        nano \
+        neofetch \
+        net-tools \
+        nmap \
+        p7zip-full \
+        pulseeffects \
+        software-properties-common \
+        terminator \
+        ubuntu-restricted-extras \
+        unzip \
+        vlc \
+        ffmpeg \
+        xclip \
+        inotify-tools \
+        notify-osd \
+        fonts-open-sans \
+        libnotify-bin
+        # sqlitebrowser
+        # earlyoom \
+        # etckeeper \
+        # geoclue-2.0 \
+        # gnome-software \
+        # minder \
+        # redshift \
+        # redshift-gtk
diff --git a/install/canon-mg2500 b/install/canon-mg2500
index eaf7942..7047e21 100755
--- a/install/canon-mg2500
+++ b/install/canon-mg2500
@@ -1,11 +1,17 @@
 #!/bin/bash
 ##makedesc: Install Canon Pixma MG2500 + ppa
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing Canon Pixma MG2500 + ppa..."
-echo "==============================================="
-echo
+title
 
-sudo add-apt-repository -y ppa:thierry-f/fork-michael-gruz
-sudo apt install -y cnijfilter-mg2500series scangearmp-mg2500series
+sudo add-apt-repository -y ppa:thierry-f/fork-michael-gruz && \
+    sudo apt install -y \
+        cnijfilter-mg2500series \
+        scangearmp-mg2500series
+
+[ $? = 0 ] && {
+    echo
+    success "Canon Pixma MG2500 installed!"
+    info "Now you must add a new printer in your system."
+    echo
+}
diff --git a/install/chrome b/install/chrome
index 50c7ce3..47b8fdb 100755
--- a/install/chrome
+++ b/install/chrome
@@ -1,14 +1,20 @@
 #!/bin/bash
 ##makedesc: Install google chrome (latest)
-
-echo
-echo "==============================================="
-echo "Installing google chrome (latest)..."
-echo "==============================================="
-echo
+source `dirname $0`/../helpers || exit 255
 
 # https://t.me/axenov_blog/251
 
-wget "https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb" -O /tmp/google-chrome-stable_current_amd64.deb && \
-    sudo dpkg -i /tmp/google-chrome-stable_current_amd64.deb && \
-    rm /tmp/google-chrome-stable_current_amd64.deb
+title
+
+mkdir -p "$HOME/install"
+
+download "https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb" \
+    "$HOME/install/google-chrome.deb" && \
+    sudo dpkg -i "$HOME/install/google-chrome.deb"
+
+[ $? = 0 ] && {
+    echo
+    success "Google Chrome installed!"
+    google-chrome --version
+    echo
+}
diff --git a/install/composer b/install/composer
index 6c1b6d4..70c890f 100755
--- a/install/composer
+++ b/install/composer
@@ -1,56 +1,41 @@
 #!/bin/bash
 ##makedesc: Install composer (latest)
-echo
-echo "==============================================="
-echo "Installing composer (latest)..."
-echo "==============================================="
-echo
+source `dirname $0`/../helpers || exit 255
 
 # https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
 
-installed() {
-    command -v "$1" >/dev/null 2>&1
-}
+title
 
-! installed "php" && echo "WARNING: You need php to be installed"
+require php
 
 if installed "composer"; then
-    echo "WARNING: Removing current composer to install its actual version"
+    warn "WARNING: Removing current composer to install its actual version"
     sudo apt remove -y --autoremove composer
-    sudo rm -f $HOME/.local/bin/composer
-    sudo rm -f /bin/composer
-    sudo rm -f /usr/bin/composer
-    sudo rm -f /usr/local/bin/composer
-    sudo rm -f /usr/src/composer
-    rm $HOME/.local/bin/composer
+    sudo rm -f \
+        "$HOME/.local/bin/composer" \
+        /bin/composer \
+        /usr/bin/composer \
+        /usr/local/bin/composer \
+        /usr/src/composer \
+        "$HOME/.local/bin/composer"
 fi
 
-mkdir -p $HOME/install $HOME/.local/bin
-cd $HOME/install
+mkdir -p "$HOME/install" "$HOME/.local/bin"
+download "https://getcomposer.org/installer" "$HOME/install/composer-setup.php" && \
+    php "$HOME/install/composer-setup.php" --install-dir="$HOME/.local/bin/composer"
 
-EXPECTED_CHECKSUM="$(php -r 'copy("https://composer.github.io/installer.sig", "php://stdout");')"
-# php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
-wget https://getcomposer.org/installer -O composer-setup.php
-ACTUAL_CHECKSUM="$(php -r "echo hash_file('sha384', 'composer-setup.php');")"
-if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]; then
-    >&2 echo 'ERROR: Invalid installer checksum'
-    rm composer-setup.php
-    exit 1
-fi
-php composer-setup.php --quiet
-mv -f $HOME/install/composer.phar $HOME/.local/bin/composer
-cd - >/dev/null
+[ $? = 0 ] && {
+    COMPOSER_GLOBAL_HOME="$($HOME/.local/bin/composer config -g home)"
+    NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
+    cat "$HOME/.profile" | grep -qoh "$NEWPATH" || {
+        $NEWPATH
+        echo "$NEWPATH" >> "$HOME/.profile"
+    }
 
-COMPOSER_GLOBAL_HOME="$($HOME/.local/bin/composer config -g home)"
-NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
-cat "${HOME}/.profile" | grep -qoh "$NEWPATH" || {
-    $NEWPATH
-    echo "$NEWPATH" >> "${HOME}/.profile"
+    echo
+    success "composer installed!"
+    composer --version
+    echo
 }
-source "${HOME}/.profile"
-
-echo
-echo "Finish!"
-composer --version
-echo
 
+source "$HOME/.profile"
diff --git a/install/docker b/install/docker
index 357a486..aced031 100755
--- a/install/docker
+++ b/install/docker
@@ -1,41 +1,35 @@
 #!/bin/bash
 ##makedesc: Install docker (latest) + docker-compose (latest) + ppa
-
-echo
-echo "==============================================="
-echo "Installing docker (latest)..."
-echo "==============================================="
-echo
+source `dirname $0`/../helpers || exit 255
 
 # https://docs.docker.com/engine/install/ubuntu/
 
-sudo apt install -y \
-    ca-certificates \
-    curl \
-    gnupg \
-    lsb-release
+title
+
+require ca-certificates
+require curl
+require gnupg
+require lsb-release
 
 sudo mkdir -p /etc/apt/keyrings
 curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
-| sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+| sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg && \
+    sudo chmod a+r /etc/apt/keyrings/docker.gpg && \
+    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" \
+    | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null && \
+    sudo apt update && \
+    sudo apt install -y --autoremove \
+        docker-ce \
+        docker-ce-cli \
+        containerd.io \
+        docker-compose-plugin && \
+    sudo usermod -aG docker $(whoami)
 
-sudo chmod a+r /etc/apt/keyrings/docker.gpg
-
-echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" \
-| sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-
-sudo apt update
-sudo apt install -y --autoremove \
-    docker-ce \
-    docker-ce-cli \
-    containerd.io \
-    docker-compose-plugin
-
-sudo usermod -aG docker $(whoami)
-
-echo
-echo "Finish!"
-docker --version
-echo "Probably, you need to relogin to apply 'docker' group."
-echo "Your ones currently are: $(groups)"
-echo
+[ $? = 0 ] && {
+    echo
+    success "Docker installed!"
+    info "Probably, you need to relogin to apply 'docker' group."
+    info "Your ones currently are: $(groups)"
+    docker --version
+    echo
+}
diff --git a/install/dots b/install/dots
index 88e9b94..1806089 100755
--- a/install/dots
+++ b/install/dots
@@ -1,25 +1,22 @@
 #!/bin/bash
 ##makedesc: Install dotfiles
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing dotfiles..."
-echo "==============================================="
-echo
+title
 
 install_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 dotfiles_src_dir="`dirname $install_dir`/dotfiles"
 postfix=".bak-`date '+%Y%m%d%H%M'`"
 
-install() {
-    echo "mv "$HOME/$1" "$HOME/$1$postfix""
-    echo "cp "$dotfiles_src_dir/$1" "$HOME/$1""
-    echo "- $1"
+install_dotfile() {
+    mv "$HOME/$1" "$HOME/$1$postfix"
+    cp "$dotfiles_src_dir/$1" "$HOME/$1"
+    success "- $1"
 }
 
-install .bash_aliases
-install .profile
-install .bashrc
-install .gitconfig
-install .gitignore
-install .git_aliases
+install_dotfile ".bash_aliases" && \
+    install_dotfile ".profile" && \
+    install_dotfile ".bashrc" && \
+    install_dotfile ".gitconfig" && \
+    install_dotfile ".gitignore" && \
+    install_dotfile ".git_aliases"
diff --git a/install/droidcam b/install/droidcam
index d903461..94b629a 100755
--- a/install/droidcam
+++ b/install/droidcam
@@ -1,21 +1,22 @@
 #!/bin/bash
-##makedesc: Install droidcam v1.8.2
+##makedesc: Install droidcam v1.9.0
+source `dirname $0`/../helpers || exit 255
 
 # https://www.dev47apps.com/droidcam/linux/
 
-echo
-echo "==============================================="
-echo "Installing droidcam v1.8.2..."
-echo "==============================================="
-echo
+title
 
-mkdir -p ~/install/droidcam
-wget -O /tmp/droidcam.zip https://files.dev47apps.net/linux/droidcam_1.8.2.zip
-unzip -oq /tmp/droidcam.zip -d ~/install/droidcam
-rm -rf /tmp/droidcam.zip
-cd ~/install/droidcam && sudo ./install-client
+mkdir -p "$HOME/install/droidcam"
 
-echo
-echo "Finish!"
-echo "Don't forget to install android app: https://play.google.com/store/apps/developer?id=Dev47Apps"
-echo
+download "https://files.dev47apps.net/linux/droidcam_1.9.0.zip" "$HOME/install/droidcam.zip" && \
+    unzip -oq "$HOME/install/droidcam.zip" -d "$HOME/install/droidcam" && \
+    cd "$HOME/install/droidcam" && \
+    sudo ./install-client
+
+[ $? = 0 ] && {
+    echo
+    success "droidcam installed!"
+    info "Don't forget to install the android app:"
+    info "https://play.google.com/store/apps/developer?id=Dev47Apps"
+    echo
+}
diff --git a/install/droidcam-obs b/install/droidcam-obs
index 5c9d6f3..3ba0e05 100755
--- a/install/droidcam-obs
+++ b/install/droidcam-obs
@@ -15,11 +15,11 @@ echo
 # command -v "obs" >/dev/null 2>&1 || echo 'You need to install obs first!'
 command -v "obs-studio" >/dev/null 2>&1 || echo 'You need to install obs-studio first!'
 
-mkdir -p ~/install/droidcam-obs
+mkdir -p $HOMEinstall/droidcam-obs
 wget -O /tmp/droidcam-obs.zip https://files.dev47apps.net/obs/droidcam_obs_1.5.1_linux.zip
-unzip -oq /tmp/droidcam-obs.zip -d ~/install/droidcam-obs
+unzip -oq /tmp/droidcam-obs.zip -d $HOMEinstall/droidcam-obs
 rm -rf /tmp/droidcam-obs.zip
-cd ~/install/droidcam-obs && ./install.sh
+cd $HOMEinstall/droidcam-obs && ./install.sh
 sudo modprobe v4l2loopback video_nr=2 card_label="OBS Virtual Camera"
 
 echo
diff --git a/install/flameshot b/install/flameshot
new file mode 100755
index 0000000..dfdef4a
--- /dev/null
+++ b/install/flameshot
@@ -0,0 +1,15 @@
+#!/bin/bash
+##makedesc: Install flameshot (latest)
+source `dirname $0`/../helpers || exit 255
+
+title
+
+sudo apt install -y --autoremove flameshot && \
+    sudo systemctl restart flameshot
+
+[ $? = 0 ] && {
+    echo
+    success "flameshot installed!"
+    flameshot -v
+    echo
+}
diff --git a/install/flameshot-build b/install/flameshot-build
deleted file mode 100755
index b9f672b..0000000
--- a/install/flameshot-build
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-##makedesc: [TODO] Build flameshot from src (latest)
-
-echo
-echo "==============================================="
-echo "Installing flameshot (latest)..."
-echo "==============================================="
-echo
diff --git a/install/git b/install/git
index 4eedad4..782dbfa 100755
--- a/install/git
+++ b/install/git
@@ -1,43 +1,38 @@
 #!/bin/bash
 ##makedesc: Install git (latest)
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing git (latest)..."
-echo "==============================================="
-echo
+title
 
-installed() {
-    command -v "$1" >/dev/null 2>&1
-}
-
-! installed make && sudo apt install -y make
+require make
 
 if installed git; then
-    if [ -d "${HOME}/install/git" ]; then
-        cd "${HOME}/install/git" && \
+    if [ -d "$HOME/install/git" ]; then
+        cd "$HOME/install/git" && \
             git pull
     else
-        git clone https://github.com/git/git.git --depth=1 "${HOME}/install/git" && \
-            cd "${HOME}/install/git"
+        clone "https://github.com/git/git.git" "$HOME/install/git" --depth=1 --single-branch && \
+            cd "$HOME/install/git"
     fi
     sudo make prefix=/usr/local all && \
         sudo make prefix=/usr/local install
 else
-    ! installed wget && sudo apt install -y wget
-    [ -d "${HOME}/install/git" ] || mkdir -p "${HOME}/install/git"
-    wget https://github.com/git/git/archive/master.zip -O /tmp/git.zip && \
-        unzip -oq /tmp/git.zip -d "${HOME}/install/git" && \
+    require wget
+    mkdir -p "$HOME/install/git"
+    download "https://github.com/git/git/archive/master.zip" "/tmp/git.zip" && \
+        unzip -oq "/tmp/git.zip" -d "$HOME/install/git" && \
         rm /tmp/git.zip && \
-        cd "${HOME}/install/git/git-master" && \
+        cd "$HOME/install/git/git-master" && \
         sudo make prefix=/usr/local all && \
         sudo make prefix=/usr/local install && \
         cd - && \
         rm -rf git && \
-        git clone https://github.com/git/git.git --depth=1 "${HOME}/install/git"
+        clone "https://github.com/git/git.git" "$HOME/install/git" --depth=1 --single-branch
 fi
 
-echo
-echo "Finish!"
-git --version
-echo
+[ $? = 0 ] && {
+    echo
+    success "git installed!"
+    git --version
+    echo
+}
diff --git a/install/golang b/install/golang
index 4dbb53e..a272a5b 100755
--- a/install/golang
+++ b/install/golang
@@ -1,30 +1,28 @@
 #!/bin/bash
-##makedesc: Install golang v1.18.3
+##makedesc: Install golang v1.20.3
+source `dirname $0`/../helpers || exit 255
 
 # https://go.dev/dl/
 # https://golang.org/doc/install
 # https://www.vultr.com/docs/install-the-latest-version-of-golang-on-ubuntu
 
+[ $1 ] && VERSION="$1" || VERSION="1.20.3"
+title "Installing golang v$VERSION..."
 
-[ $1 ] && VERSION="$1" || VERSION="1.18.3"
 FILE="go$VERSION.linux-amd64.tar.gz"
-
-echo
-echo "==============================================="
-echo "Installing golang v$VERSION..."
-echo "==============================================="
-echo
-
 sudo rm -rf /usr/local/go && \
-    wget "https://golang.org/dl/$FILE" -O /tmp/$FILE && \
-    sudo tar -xzf /tmp/$FILE -C /usr/local && \
-    rm -rf /tmp/$FILE && \
+    download "https://golang.org/dl/$FILE" "/tmp/$FILE" && \
+    sudo tar -xzf "/tmp/$FILE" -C /usr/local && \
+    rm -rf "/tmp/$FILE" && \
     sudo chown $USER: -R /usr/local/go && \
-    echo 'export PATH="$PATH:/usr/local/go/bin\"' >> $HOME/.profile && \
-    echo 'export GOPATH="$HOME/.go"' >> $HOME/.profile
+    echo 'export PATH="$PATH:/usr/local/go/bin\"' >> "$HOME/.profile" && \
+    echo 'export GOPATH="~/.go"' >> "$HOME/.profile" && \
+    source ~/.profile
 
-echo
-echo "Finish!"
-go version
-echo "NOTE: now run 'source ~/.profile' to apply new env vars"
-echo
+[ $? = 0 ] && {
+    echo
+    success "golang installed!"
+    info "NOTE: now run 'source ~/.profile' to apply new env vars"
+    go --version
+    echo
+}
diff --git a/install/grub-customizer b/install/grub-customizer
new file mode 100755
index 0000000..cfc0eeb
--- /dev/null
+++ b/install/grub-customizer
@@ -0,0 +1,15 @@
+#!/bin/bash
+##makedesc: Install grub-customizer (latest + ppa)
+source `dirname $0`/../helpers || exit 255
+
+title
+
+sudo add-apt-repository -y ppa:danielrichter2007/grub-customizer && \
+    sudo apt install -y --autoremove grub-customizer
+
+[ $? = 0 ] && {
+    echo
+    success "grub-customizer installed!"
+    grub-customizer -v
+    echo
+}
diff --git a/install/grubc b/install/grubc
deleted file mode 100755
index 236fd10..0000000
--- a/install/grubc
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/bash
-##makedesc: Install grub-customizer (latest) + ppa
-
-echo
-echo "==============================================="
-echo "Installing grub-customizer (latest)..."
-echo "==============================================="
-echo
-
-sudo add-apt-repository -y ppa:danielrichter2007/grub-customizer
-sudo apt install -y --autoremove grub-customizer
diff --git a/install/jbmono b/install/jbmono
index 73f28aa..b0f4173 100755
--- a/install/jbmono
+++ b/install/jbmono
@@ -1,14 +1,14 @@
 #!/bin/bash
 ##makedesc: Install JetBrains Mono fonts
-[ -f `dirname $0`/../helpers ] && source `dirname $0`/../helpers || exit 255
+source `dirname $0`/../helpers || exit 255
 
 # https://www.jetbrains.com/lp/mono/#how-to-install
 
 title
+
 require unzip
 
 mkdir -p "$HOME/install/jbmono" "$HOME/.local/share/fonts/"
-
 download "https://download.jetbrains.com/fonts/JetBrainsMono-2.304.zip" "$HOME/install/jbmono.zip" && \
     unzip -oj "$HOME/install/jbmono.zip" "fonts/ttf/*.ttf" -d "$HOME/.local/share/fonts/" && \
     fc-cache -vf "$HOME/.local/share/fonts/"
diff --git a/install/kde-backports b/install/kde-backports
index a5401a4..57687e1 100755
--- a/install/kde-backports
+++ b/install/kde-backports
@@ -1,14 +1,9 @@
 #!/bin/bash
 ##makedesc: Install KDE Backports
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing KDE Backports..."
-echo "==============================================="
-echo
+title
 
-sudo add-apt-repository -y ppa:kubuntu-ppa/backports
-# sudo add-apt-repository -y ppa:kubuntu-ppa/backports-extra
-sudo apt update
-# sudo pkcon update
-sudo apt full-upgrade
+sudo add-apt-repository -y ppa:kubuntu-ppa/backports && \
+    sudo apt update && \
+    sudo apt full-upgrade
diff --git a/install/openvpn b/install/openvpn
index c392197..f52a536 100755
--- a/install/openvpn
+++ b/install/openvpn
@@ -1,37 +1,31 @@
 #!/bin/bash
-##makedesc: Install openvpn v2.5.8 (src)
+##makedesc: Install openvpn v2.6.3 (src)
+source `dirname $0`/../helpers || exit 255
 
 # https://openvpn.net/community-downloads/
 # https://openvpn.net/community-resources/installing-openvpn/
 
-[ $1 ] && OVPNVER="$1" || OVPNVER='2.5.8'
+[ "$1" ] && OVPNVER="$1" || OVPNVER='2.6.3'
 
-echo
-echo "==============================================="
-echo "Installing openvpn v${OVPNVER} (src)..."
-echo "==============================================="
-echo
+title "Installing openvpn v${OVPNVER} (src)..."
 
-set -ex
-
-sudo apt install -y \
-    libssl-dev \
+require libssl-dev \
     liblzo2-dev \
     libpam0g-dev
 
-mkdir -p "${HOME}/install/"
-wget "https://swupdate.openvpn.org/community/releases/openvpn-${OVPNVER}.tar.gz" \
-    -O "/tmp/openvpn-${OVPNVER}.tar.gz"
-tar -xzf "/tmp/openvpn-${OVPNVER}.tar.gz" -C "${HOME}/install/"
-cd "${HOME}/install/openvpn-${OVPNVER}"
-sudo ./configure && \
+mkdir -p "$HOME/install/"
+download "https://swupdate.openvpn.org/community/releases/openvpn-${OVPNVER}.tar.gz" "$HOME/install/openvpn-${OVPNVER}.tar.gz" && \
+    unpak_targz "$HOME/install/openvpn-${OVPNVER}.tar.gz" "$HOME/install/" && \
+    cd "$HOME/install/openvpn-${OVPNVER}" && \
+    sudo ./configure && \
     sudo make && \
     sudo make install &&
-    sudo apt install -y \
-        network-manager-openvpn \
+    apt_install network-manager-openvpn \
         network-manager-openvpn-gnome
 
-echo
-echo "Finish!"
-openvpn --version
-echo
+[ $? = 0 ] && {
+    echo
+    success "openvpn installed!"
+    openvpn --version
+    echo
+}
diff --git a/install/papirus b/install/papirus
index ca7dfdd..1e576cb 100755
--- a/install/papirus
+++ b/install/papirus
@@ -1,34 +1,27 @@
 #!/bin/bash
 ##makedesc: Install papirus-icon-theme (latest)
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing papirus-icon-theme (latest)..."
-echo "==============================================="
-echo
+title
 
-installed() {
-    command -v "$1" >/dev/null 2>&1
-}
+mkdir -p "$HOME/install/papirus-icon-theme" "$HOME/.local/share/icons/"
 
 if installed git; then
-    mkdir -p "${HOME}/install/"
-    git clone https://github.com/PapirusDevelopmentTeam/papirus-icon-theme.git "${HOME}/install/papirus-icon-theme" --depth=1 --single-branch
+    clone_quick https://github.com/PapirusDevelopmentTeam/papirus-icon-theme.git "$HOME/install/"
 else
-    ! installed wget && sudo apt install -y wget
-    mkdir -p "${HOME}/install/papirus-icon-theme"
-    wget https://github.com/PapirusDevelopmentTeam/papirus-icon-theme/archive/refs/heads/master.zip -O "${HOME}/install/papirus-icon-theme.zip"
-    unzip -oq "${HOME}/install/papirus-icon-theme.zip" -d "${HOME}/install/papirus-icon-theme"
-    rm -f "${HOME}/install/papirus-icon-theme.zip"
+    download https://github.com/PapirusDevelopmentTeam/papirus-icon-theme/archive/refs/heads/master.zip -O "$HOME/install/papirus-icon-theme.zip" && \
+        unzip -oq "$HOME/install/papirus-icon-theme.zip" -d "$HOME/install/papirus-icon-theme" && \
+        rm -f "$HOME/install/papirus-icon-theme.zip"
 fi
 
-mkdir -p "${HOME}/.local/share/icons/"
-ln -sf "${HOME}/install/papirus-icon-theme/Papirus" "${HOME}/.local/share/icons/Papirus"
-ln -sf "${HOME}/install/papirus-icon-theme/Papirus-Dark" "${HOME}/.local/share/icons/Papirus-Dark"
-ln -sf "${HOME}/install/papirus-icon-theme/Papirus-Light" "${HOME}/.local/share/icons/Papirus-Light"
+symlink "$HOME/install/papirus-icon-theme/Papirus" "$HOME/.local/share/icons/Papirus" && \
+    symlink "$HOME/install/papirus-icon-theme/Papirus-Dark" "$HOME/.local/share/icons/Papirus-Dark" && \
+    symlink "$HOME/install/papirus-icon-theme/Papirus-Light" "$HOME/.local/share/icons/Papirus-Light"
+
+[ $? = 0 ] && {
+    echo
+    success "Papirus icons installed!"
+    info "You can find them in $HOME/.local/share/icons/"
+    echo
+}
 
-echo
-echo "Finish! Don't forget to change current icon theme."
-echo "You can find them here:"
-echo -e "\t${HOME}/.local/share/icons/"
-echo
diff --git a/install/pgsql b/install/pgsql
index 5386919..81de742 100755
--- a/install/pgsql
+++ b/install/pgsql
@@ -1,16 +1,14 @@
 #!/bin/bash
 ##makedesc: Install postgresql (latest) and php-pgsql (if php is installed)
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing postgresql (latest)..."
-echo "==============================================="
-echo
+title
 
-installed() {
-    command -v "$1" >/dev/null 2>&1
-}
-
-sudo apt install -y --autoremove postgresql postgresql-contrib
-sudo service postgresql restart
-installed 'php' && sudo apt install -y --autoremove php-pgsql
+require postgresql postgresql-contrib && \
+    sudo service postgresql restart && \
+    {
+        echo
+        success "openvpn installed!"
+        postgres --version
+        echo
+    }
diff --git a/install/php-psalm b/install/php-psalm
index 548e374..7fee67c 100755
--- a/install/php-psalm
+++ b/install/php-psalm
@@ -16,11 +16,11 @@ installed() {
 
 COMPOSER_GLOBAL_HOME="$(composer config -g home)"
 NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
-cat "${HOME}/.profile" | grep -qoh "$NEWPATH" || {
+cat "$HOME/.profile" | grep -qoh "$NEWPATH" || {
     $NEWPATH
-    echo "$NEWPATH" >> "${HOME}/.profile"
+    echo "$NEWPATH" >> "$HOME/.profile"
 }
-source "${HOME}/.profile"
+source "$HOME/.profile"
 
 composer global require vimeo/psalm --dev
 
diff --git a/install/php-spx b/install/php-spx
index 4e8351b..edf5814 100755
--- a/install/php-spx
+++ b/install/php-spx
@@ -16,11 +16,11 @@ installed() {
 ! installed 'make' && sudo apt install -y make
 ! installed 'wget' && sudo apt install -y wget
 
-[ -d "${HOME}/install/php-spx" ] || mkdir -p "${HOME}/install/php-spx"
+[ -d "$HOME/install/php-spx" ] || mkdir -p "$HOME/install/php-spx"
 wget https://github.com/NoiseByNorthwest/php-spx/archive/refs/heads/release/latest.zip -O /tmp/php-spx.zip \
-    && unzip -oq /tmp/php-spx.zip -d "${HOME}/install/php-spx" \
+    && unzip -oq /tmp/php-spx.zip -d "$HOME/install/php-spx" \
     && rm /tmp/php-spx.zip \
-    && cd "${HOME}/install/php-spx/php-spx-release-latest" \
+    && cd "$HOME/install/php-spx/php-spx-release-latest" \
     && phpize \
     && ./configure \
     && make \
diff --git a/install/phpcs b/install/phpcs
index 489c8b5..163bc6a 100755
--- a/install/phpcs
+++ b/install/phpcs
@@ -16,11 +16,11 @@ installed() {
 
 COMPOSER_GLOBAL_HOME="$(composer config -g home)"
 NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
-cat "${HOME}/.profile" | grep -qoh "$NEWPATH" || {
+cat "$HOME/.profile" | grep -qoh "$NEWPATH" || {
     $NEWPATH
-    echo "$NEWPATH" >> "${HOME}/.profile"
+    echo "$NEWPATH" >> "$HOME/.profile"
 }
-source "${HOME}/.profile"
+source "$HOME/.profile"
 
 composer global require squizlabs/php_codesniffer --dev
 composer global require friendsofphp/php-cs-fixer --dev
diff --git a/install/phpmd b/install/phpmd
index beffa52..c1124d8 100755
--- a/install/phpmd
+++ b/install/phpmd
@@ -16,11 +16,11 @@ installed() {
 
 COMPOSER_GLOBAL_HOME="$(composer config -g home)"
 NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
-cat "${HOME}/.profile" | grep -qoh "$NEWPATH" || {
+cat "$HOME/.profile" | grep -qoh "$NEWPATH" || {
     $NEWPATH
-    echo "$NEWPATH" >> "${HOME}/.profile"
+    echo "$NEWPATH" >> "$HOME/.profile"
 }
-source "${HOME}/.profile"
+source "$HOME/.profile"
 
 composer global require phpmd/phpmd --dev
 
diff --git a/install/phpstan b/install/phpstan
index 64bf973..ba2ac3f 100755
--- a/install/phpstan
+++ b/install/phpstan
@@ -16,11 +16,11 @@ installed() {
 
 COMPOSER_GLOBAL_HOME="$(composer config -g home)"
 NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
-cat "${HOME}/.profile" | grep -qoh "$NEWPATH" || {
+cat "$HOME/.profile" | grep -qoh "$NEWPATH" || {
     $NEWPATH
-    echo "$NEWPATH" >> "${HOME}/.profile"
+    echo "$NEWPATH" >> "$HOME/.profile"
 }
-source "${HOME}/.profile"
+source "$HOME/.profile"
 
 composer global require phpstan/phpstan --dev
 
diff --git a/install/phpunit b/install/phpunit
index ce3ca45..584df44 100755
--- a/install/phpunit
+++ b/install/phpunit
@@ -16,11 +16,11 @@ installed() {
 
 COMPOSER_GLOBAL_HOME="$(composer config -g home)"
 NEWPATH="export PATH=\"$COMPOSER_GLOBAL_HOME/vendor/bin:\${PATH}\""
-cat "${HOME}/.profile" | grep -qoh "$NEWPATH" || {
+cat "$HOME/.profile" | grep -qoh "$NEWPATH" || {
     $NEWPATH
-    echo "$NEWPATH" >> "${HOME}/.profile"
+    echo "$NEWPATH" >> "$HOME/.profile"
 }
-source "${HOME}/.profile"
+source "$HOME/.profile"
 
 composer global require phpunit/phpunit --dev
 
diff --git a/install/postman b/install/postman
index 2f16a69..e77f17f 100755
--- a/install/postman
+++ b/install/postman
@@ -1,28 +1,31 @@
 #!/bin/bash
 ##makedesc: Install postman (latest)
+source `dirname $0`/../helpers || exit 255
 
-echo
-echo "==============================================="
-echo "Installing postman (latest)..."
-echo "==============================================="
-echo
+# https://learning.postman.com/docs/getting-started/installation-and-updates/#installing-postman-on-linux
 
-mkdir -p ${HOME}/install/postman
-mkdir -p ${HOME}/.local/bin
-wget "https://dl.pstmn.io/download/latest/linux64" -O ${HOME}/install/postman.tar.gz && \
-    tar -xzf ${HOME}/install/postman.tar.gz -C ${HOME}/install/postman && \
-    ln -sf ${HOME}/install/postman/Postman/Postman ${HOME}/.local/bin/postman && \
-    mkdir -p "${HOME}/.local/share/applications" && \
-    cat << EOF > "${HOME}/.local/share/applications/Postman.desktop"
-#!/usr/bin/env xdg-open
+title
 
+mkdir -p "$HOME/install" && \
+    "$HOME/.local/bin" && \
+    "$HOME/.local/share/applications"
+
+download "https://dl.pstmn.io/download/latest/linux64" $HOME/install/postman.tar.gz && \
+    unpak_targz "$HOME/install/postman.tar.gz" "$HOME/install" && \
+    symlink $HOME/install/Postman/Postman $HOME/.local/bin/postman && \
+    cat << EOF > "$HOME/.local/share/applications/Postman.desktop" && sudo update-desktop-database
 [Desktop Entry]
 Name=Postman
-Exec=${HOME}/.local/bin/postman
-Icon=${HOME}/install/postman/Postman/app/icons/icon_128x128.png
-Categories=Utility,Network
+Exec=$HOME/.local/bin/postman %U
+Icon=$HOME/install/Postman/app/icons/icon_128x128.png
+Categories=Development,Network
 Terminal=false
 Type=Application
 Encoding=UTF-8
 EOF
-sudo update-desktop-database
+
+[ $? = 0 ] && {
+    echo
+    success "Postman installed!"
+    echo
+}
diff --git a/install/telegram b/install/telegram
index 7437d18..ea5bb35 100755
--- a/install/telegram
+++ b/install/telegram
@@ -7,7 +7,7 @@ echo "Installing telegram (latest)..."
 echo "==============================================="
 echo
 
-mkdir -p "${HOME}/install" "${HOME}/.local/bin"
-wget "https://telegram.org/dl/desktop/linux" -O ${HOME}/install/telegram.tar.gz && \
-    tar -xJf ${HOME}/install/telegram.tar.gz -C ${HOME}/.local/bin
-${HOME}/.local/bin/Telegram/Telegram & disown > /dev/null
+mkdir -p "$HOME/install" "$HOME/.local/bin"
+wget "https://telegram.org/dl/desktop/linux" -O $HOME/install/telegram.tar.gz && \
+    tar -xJf $HOME/install/telegram.tar.gz -C $HOME/.local/bin
+$HOME/.local/bin/Telegram/Telegram & disown > /dev/null
diff --git a/install/youtube-dl b/install/youtube-dl
index bec0b07..0d4204c 100755
--- a/install/youtube-dl
+++ b/install/youtube-dl
@@ -12,8 +12,8 @@ echo
 # 11.04.23: release 2021.12.17 in snap/apt/github is broken (Unable to extract uploader id)
 # and still no fix officially released, so we just build it from actual sources
 
-# curl -L https://yt-dl.org/downloads/latest/youtube-dl -o "${HOME}/.local/bin/youtube-dl" && \
-#     sudo chmod +rx "${HOME}/.local/bin/youtube-dl"
+# curl -L https://yt-dl.org/downloads/latest/youtube-dl -o "$HOME/.local/bin/youtube-dl" && \
+#     sudo chmod +rx "$HOME/.local/bin/youtube-dl"
 
 installed() {
     command -v "$1" >/dev/null 2>&1
diff --git a/install/ytdlcue b/install/ytdlcue
index fcfe3a4..1cf7533 100755
--- a/install/ytdlcue
+++ b/install/ytdlcue
@@ -11,5 +11,5 @@ echo
 
 install_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 tools_dir="`dirname $install_dir`/tools"
-cp "${tools_dir}/ytdlcue.sh" "${HOME}/.local/bin/ytdlcue"
-sudo chmod +rx "${HOME}/.local/bin/ytdlcue"
+cp "${tools_dir}/ytdlcue.sh" "$HOME/.local/bin/ytdlcue"
+sudo chmod +rx "$HOME/.local/bin/ytdlcue"
diff --git a/install/zsh b/install/zsh
index 0d7dc39..2e73d2e 100755
--- a/install/zsh
+++ b/install/zsh
@@ -8,4 +8,4 @@ echo "==============================================="
 echo
 
 sudo apt install -y --autoremove zsh
-echo "source ~/.profile" >> ~/.zshrc
+echo "source ~/.profile" >> "$HOME/.zshrc"
diff --git a/uninstall/apache2 b/uninstall/apache2
new file mode 100755
index 0000000..b6e725e
--- /dev/null
+++ b/uninstall/apache2
@@ -0,0 +1,13 @@
+#!/bin/bash
+##makedesc: Uninstall apache2
+source `dirname $0`/../helpers || exit 255
+
+title
+
+sudo apt remove -y --autoremove apache2
+
+[ $? = 0 ] && {
+    echo
+    success "apache2 uninstalled!"
+    echo
+}
diff --git a/uninstall/grub-customizer b/uninstall/grub-customizer
new file mode 100755
index 0000000..f6b0b71
--- /dev/null
+++ b/uninstall/grub-customizer
@@ -0,0 +1,19 @@
+#!/bin/bash
+##makedesc: Uninstall grub-customizer with ppa
+source `dirname $0`/../helpers || exit 255
+
+title
+
+source_file="/etc/apt/sources.list.d/$(ls -1 /etc/apt/sources.list.d/ | grep danielrichter2007)"
+
+sudo apt remove -y --autoremove grub-customizer && \
+    [ -f "$source_file" ] && {
+        sudo rm "$source_file" && \
+        sudo apt update
+    }
+
+[ $? = 0 ] && {
+    echo
+    success "grub-customizer uninstalled!"
+    echo
+}
diff --git a/uninstall/lite-xl b/uninstall/lite-xl
index 4e580e2..10cf21f 100755
--- a/uninstall/lite-xl
+++ b/uninstall/lite-xl
@@ -9,10 +9,10 @@ echo
 
 set -x
 rm -rf \
-    "${HOME}/.local/bin/lite-xl" \
-    "${HOME}/.local/share/applications/org.lite_xl.lite_xl.desktop" \
-    "${HOME}/.local/share/lite-xl" \
-    "${HOME}/.config/lite-xl"
+    "$HOME/.local/bin/lite-xl" \
+    "$HOME/.local/share/applications/org.lite_xl.lite_xl.desktop" \
+    "$HOME/.local/share/lite-xl" \
+    "$HOME/.config/lite-xl"
 
 sudo update-desktop-database && \
     xdg-desktop-menu forceupdate