diff --git a/core/tabs/applications-setup/alacritty-setup.sh b/core/tabs/applications-setup/alacritty-setup.sh
index 25558fed..5afe6937 100755
--- a/core/tabs/applications-setup/alacritty-setup.sh
+++ b/core/tabs/applications-setup/alacritty-setup.sh
@@ -9,6 +9,9 @@ installAlacritty() {
             pacman)
                 "$ESCALATION_TOOL" "$PACKAGER" -S --needed --noconfirm alacritty
                 ;;
+            nix-env)
+                "$PACKAGER" -iA nixpkgs.alacritty
+                ;;
             *)
                 "$ESCALATION_TOOL" "$PACKAGER" install -y alacritty
                 ;;
diff --git a/core/tabs/applications-setup/android-debloat.sh b/core/tabs/applications-setup/android-debloat.sh
index b4e1073a..5e24d44c 100644
--- a/core/tabs/applications-setup/android-debloat.sh
+++ b/core/tabs/applications-setup/android-debloat.sh
@@ -15,6 +15,9 @@ install_adb() {
             dnf|zypper)
                 "$ESCALATION_TOOL" "$PACKAGER" install -y android-tools
                 ;;
+            nix-env)
+                "$PACKAGER" -iA nixpkgs.android-tools
+                ;;
             *)
                 printf "%b\n" "${RED}Unsupported package manager: "$PACKAGER"${RC}"
                 exit 1
diff --git a/core/tabs/applications-setup/docker-setup.sh b/core/tabs/applications-setup/docker-setup.sh
index afcd1572..4588a1d8 100755
--- a/core/tabs/applications-setup/docker-setup.sh
+++ b/core/tabs/applications-setup/docker-setup.sh
@@ -4,7 +4,6 @@
 
 # Function to prompt the user for installation choice
 choose_installation() {
-    clear
     printf "%b\n" "${YELLOW}Choose what to install:${RC}"
     printf "%b\n" "1. ${YELLOW}Docker${RC}"
     printf "%b\n" "2. ${YELLOW}Docker Compose${RC}"
@@ -36,6 +35,11 @@ install_docker() {
             "$ESCALATION_TOOL" systemctl enable docker
             "$ESCALATION_TOOL" systemctl start docker
             ;;
+        nix-env)
+            "$PACKAGER" -iA nixpkgs.docker
+            "$ESCALATION_TOOL" sed -i'' -E '/^[[:space:]]*virtualisation\.docker\.enable/!b; s/^([[:space:]]*)virtualisation\.docker\.enable.*/\1virtualisation.docker.enable = true;/' "$NIXOS_CONFIG" || echo 'virtualisation.docker.enable = true;' | "$ESCALATION_TOOL" tee -a "$NIXOS_CONFIG"
+            "$ESCALATION_TOOL" nixos-rebuild switch
+            ;;
         *)
             printf "%b\n" "${RED}Unsupported package manager: ""$PACKAGER""${RC}"
             exit 1
@@ -55,6 +59,9 @@ install_docker_compose() {
         pacman)
             "$ESCALATION_TOOL" "$PACKAGER" -S --needed --noconfirm docker-compose
             ;;
+        nix-env)
+            "$PACKAGER" -iA nixpkgs.docker-compose
+            ;;
         *)
             printf "%b\n" "${RED}Unsupported package manager: ""$PACKAGER""${RC}"
             exit 1
@@ -84,4 +91,4 @@ install_components() {
 
 checkEnv
 checkEscalationTool
-install_components
\ No newline at end of file
+install_components
diff --git a/core/tabs/applications-setup/dwmtitus-setup.sh b/core/tabs/applications-setup/dwmtitus-setup.sh
index 01ec0ef1..86f161ac 100755
--- a/core/tabs/applications-setup/dwmtitus-setup.sh
+++ b/core/tabs/applications-setup/dwmtitus-setup.sh
@@ -15,6 +15,8 @@ setupDWM() {
             "$ESCALATION_TOOL" "$PACKAGER" groupinstall -y "Development Tools"
             "$ESCALATION_TOOL" "$PACKAGER" install -y libX11-devel libXinerama-devel libXft-devel imlib2-devel libxcb-devel unzip flameshot lxappearance feh mate-polkit # no need to include git here as it should be already installed via "Development Tools"
             ;;
+        nix-env)
+            ;;
         *)
             printf "%b\n" "${RED}Unsupported package manager: ""$PACKAGER""${RC}"
             exit 1
diff --git a/core/tabs/applications-setup/setup-flatpak.sh b/core/tabs/applications-setup/setup-flatpak.sh
index 75da28af..6eee92e3 100755
--- a/core/tabs/applications-setup/setup-flatpak.sh
+++ b/core/tabs/applications-setup/setup-flatpak.sh
@@ -25,6 +25,11 @@ setup_flatpak() {
             pacman)
                 "$ESCALATION_TOOL" "$PACKAGER" -S --needed --noconfirm flatpak
                 ;;
+            nix-env)
+                "$PACKAGER" -iA nixpkgs.flatpak
+                "$ESCALATION_TOOL" sed -i'' -E '/^[[:space:]]*services\.flatpak\.enable/!b; s/^([[:space:]]*)services\.flatpak\.enable.*/\1services.flatpak.enable = true;/' "$NIXOS_CONFIG" || echo 'services.flatpak.enable = true;' | "$ESCALATION_TOOL" tee -a "$NIXOS_CONFIG"
+                "$ESCALATION_TOOL" nixos-rebuild switch
+                ;;
             *)
                 "$ESCALATION_TOOL" "$PACKAGER" install -y flatpak
                 ;;
diff --git a/core/tabs/common-script.sh b/core/tabs/common-script.sh
index 12ab1146..5ad70e53 100644
--- a/core/tabs/common-script.sh
+++ b/core/tabs/common-script.sh
@@ -78,6 +78,16 @@ checkPackageManager() {
         if command_exists "${pgm}"; then
             PACKAGER=${pgm}
             printf "%b\n" "${CYAN}Using ${pgm} as package manager${RC}"
+            
+            if [ $PACKAGER = 'nix-env' ] && [ -z "$NIXOS_CONFIG" ]; then
+                NIXOS_CONFIG="/etc/nixos/configuration.nix"
+                while [ ! -f "$NIXOS_CONFIG" ]; do
+                    printf "%b\n" "${RED}configuration.nix not found.${RC}"
+                    printf "%b" "${YELLOW}Enter the path manually: ${RC}"
+                    read -r NIXOS_CONFIG
+                done
+            fi
+
             break
         fi
     done
@@ -127,7 +137,7 @@ checkDistro() {
 checkEnv() {
     checkEscalationTool
     checkCommandRequirements "curl groups $ESCALATION_TOOL"
-    checkPackageManager 'nala apt-get dnf pacman zypper'
+    checkPackageManager 'nala apt-get dnf pacman zypper nix-env'
     checkCurrentDirectoryWritable
     checkSuperUser
     checkDistro