diff --git a/buildenv.sh b/buildenv.sh
index 28f2ac5d..d8f27aff 100644
--- a/buildenv.sh
+++ b/buildenv.sh
@@ -20,6 +20,68 @@
 
 set -o allexport
 
+PACKAGES=(
+  libbrotli-dev liblz4-dev libzstd-dev protobuf-compiler libgtest-dev
+  ffmpeg webp zipalign clang build-essential cmake openjdk-17-jdk
+  libncurses-dev bison flex libssl-dev libelf-dev python3
+  python-is-python3 cpio attr zip libprotobuf-dev make
+  libpcre2-dev ccache npm
+)
+
+echo "Checking dependencies..."
+
+MISSING_PACKAGES=()
+for PACKAGE in "${PACKAGES[@]}"; do
+  if ! dpkg -s "$PACKAGE" >/dev/null 2>&1; then
+    MISSING_PACKAGES+=("$PACKAGE")
+  fi
+done
+
+if [ ${#MISSING_PACKAGES[@]} -eq 0 ]; then
+  echo "All dependencies are already installed."
+else
+  echo "The following packages are missing: ${MISSING_PACKAGES[*]}"
+  echo "Attempting to install missing packages..."
+  sudo apt update
+  sudo apt install "${MISSING_PACKAGES[@]}"
+fi
+
+echo "Checking for missing Git submodules..."
+
+if [ -f .gitmodules ]; then
+  UNINITIALIZED_SUBMODULES=$(git submodule status | grep '^-' || true)
+  
+  if [ -n "$UNINITIALIZED_SUBMODULES" ]; then
+    echo "The following submodules are missing or uninitialized:"
+    echo "$UNINITIALIZED_SUBMODULES"
+    echo "Initializing and cloning submodules..."
+    git submodule update --init --recursive
+    if [ $? -eq 0 ]; then
+      echo "Submodules initialized and cloned successfully."
+    else
+      echo "Failed to clone submodules. Please check your repository configuration."
+      exit 1
+    fi
+  else
+    echo "All submodules are already initialized."
+  fi
+else
+  echo "No submodules found in this repository."
+fi
+
+#create venv if not exist
+if [ ! -f "venv/bin/activate" ]; then
+    echo "Virtual environment not found. Creating a new one..."
+    python3 -m venv venv
+else
+    echo "Virtual environment already exists."
+fi
+
+source venv/bin/activate
+
+pip3 install git+https://github.com/ananjaser1211/samloader.git &> /dev/null
+
+
 # [
 SRC_DIR="$(git rev-parse --show-toplevel)"
 OUT_DIR="$SRC_DIR/out"
@@ -32,14 +94,30 @@ TOOLS_DIR="$OUT_DIR/tools/bin"
 
 PATH="$TOOLS_DIR:$PATH"
 
-run_cmd()
+unica()
 {
     local CMD=$1
     local CMDS
     CMDS="$(find "scripts" -mindepth 1 -maxdepth 1 -type f -printf '%f\n' | sed "s/.sh//g")"
 
+    local YELLOW="\033[1;33m"
+    local CYAN="\033[1;36m"
+    local RESET_COLOR="\033[0m"
+
     if [ -z "$CMD" ] || [ "$CMD" = "-h" ]; then
-        echo -e "Available cmds:\n$CMDS"
+        echo -e "Available cmds:"
+        for script in "scripts"/*.sh; do
+            CMD_NAME=$(basename "$script" .sh)
+                        HELP_LINES=$(grep "^# CMD_HELP" "$script" | sed 's/^# CMD_HELP[[:space:]]*//')
+
+            if [ -n "$HELP_LINES" ]; then
+                echo -e "${YELLOW}$CMD_NAME${RESET_COLOR}:"
+                echo -e "${CYAN}$HELP_LINES${RESET_COLOR}"
+                echo ""
+            else
+                echo -e "${YELLOW}$CMD_NAME${RESET_COLOR} - No help available"
+            fi
+        done
         return 1
     elif ! echo "$CMDS" | grep -q -w "$CMD"; then
         echo "\"$CMD\" is not valid."
@@ -50,31 +128,52 @@ run_cmd()
         bash -e "$SRC_DIR/scripts/$CMD.sh" "$@"
     fi
 }
+
 # ]
 
-TARGETS="$(ls "$SRC_DIR/target")"
+TARGETS=($(ls "$SRC_DIR/target"))
 
-if [ "$#" != 1 ]; then
+if [ "$#" -ne 1 ]; then
     echo "Usage: source buildenv.sh <target>"
-    echo -e "Available devices:\n$TARGETS"
-    return 1
-elif ! echo "$TARGETS" | grep -q -w "$1"; then
-    echo "\"$1\" is not valid target."
-    echo -e "Available devices:\n$TARGETS"
-    return 1
+    echo "No target specified. Please choose from the available devices below:"
+
+    select TARGET in "${TARGETS[@]}"; do
+        if [ -n "$TARGET" ]; then
+            echo "You selected: $TARGET"
+            export SELECTED_TARGET="$TARGET"
+            break
+        else
+            echo "Invalid selection. Please try again."
+        fi
+    done
+
+    if [ -z "$SELECTED_TARGET" ]; then
+        echo "No valid target selected. Exiting."
+        return 1
+    fi
 else
-    mkdir -p "$OUT_DIR"
-    run_cmd build_dependencies || return 1
-    [ -f "$OUT_DIR/config.sh" ] && unset $(sed "/Automatically/d" "$OUT_DIR/config.sh" | cut -d= -f1)
-    bash "$SRC_DIR/scripts/internal/gen_config_file.sh" "$1" || return 1
-    source "$OUT_DIR/config.sh"
-
-    echo "=============================="
-    sed "/Automatically/d" "$OUT_DIR/config.sh"
-    echo "=============================="
+    if ! printf "%s\n" "${TARGETS[@]}" | grep -q -w "$1"; then
+        echo "\"$1\" is not a valid target."
+        echo "Available devices:"
+        printf "%s\n" "${TARGETS[@]}"
+        return 1
+    fi
+    SELECTED_TARGET="$1"
+fi
+
+mkdir -p "$OUT_DIR"
+unica build_dependencies || return 1
+
+if [ -f "$OUT_DIR/config.sh" ]; then
+    unset $(sed "/Automatically/d" "$OUT_DIR/config.sh" | cut -d= -f1)
 fi
 
-unset TARGETS
-set +o allexport
+bash "$SRC_DIR/scripts/internal/gen_config_file.sh" "$SELECTED_TARGET" || return 1
+source "$OUT_DIR/config.sh"
+
+echo "=============================="
+sed "/Automatically/d" "$OUT_DIR/config.sh"
+echo "type "unica -h" for help"
+
 
 return 0
diff --git a/scripts/apktool.sh b/scripts/apktool.sh
index 9c5be7df..e012ebb6 100755
--- a/scripts/apktool.sh
+++ b/scripts/apktool.sh
@@ -16,6 +16,11 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+# CMD_HELP Usage: apktool d[ecode]/b[uild] <apk> (<apk>...)
+# CMD_HELP APK/JAR path MUST not be full and match an existing file inside work_dir
+# CMD_HELP Output files will be stored in ($APKTOOL_DIR)
+# CMD_HELP Recompiled apk will be copied back to its original directory
+
 set -eu
 shopt -s nullglob
 
diff --git a/scripts/build_fs_image.sh b/scripts/build_fs_image.sh
index 28c407ca..65ae4b07 100755
--- a/scripts/build_fs_image.sh
+++ b/scripts/build_fs_image.sh
@@ -16,6 +16,8 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+# CMD_HELP Builds the finished system.img... if already at that point.
+
 set -eu
 
 # [
diff --git a/scripts/cleanup.sh b/scripts/cleanup.sh
index f47a2921..8041198c 100755
--- a/scripts/cleanup.sh
+++ b/scripts/cleanup.sh
@@ -16,6 +16,14 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+# CMD_HELP Available options (multiple can be accepted):
+# CMD_HELP  "all"
+# CMD_HELP  "odin"
+# CMD_HELP  "fw"
+# CMD_HELP  "apktool"
+# CMD_HELP  "work_dir"
+# CMD_HELP  "tools"
+
 set -eu
 
 ALL=false
diff --git a/scripts/download_fw.sh b/scripts/download_fw.sh
old mode 100755
new mode 100644
index d5b28747..ef26c1d1
--- a/scripts/download_fw.sh
+++ b/scripts/download_fw.sh
@@ -18,6 +18,8 @@
 
 # shellcheck disable=SC2162
 
+# CMD_HELP Downloads the Firmware needed for selected device.
+
 set -e
 
 # [
@@ -27,25 +29,62 @@ GET_LATEST_FIRMWARE()
         | grep latest | sed 's/^[^>]*>//' | sed 's/<.*//'
 }
 
-DOWNLOAD_FIRMWARE()
-{
+DOWNLOAD_FIRMWARE() {
     local PDR
     PDR="$(pwd)"
 
-    cd "$ODIN_DIR"
-    { samfirm -m "$MODEL" -r "$REGION" -i "$IMEI" > /dev/null; } 2>&1 \
-        && touch "$ODIN_DIR/${MODEL}_${REGION}/.downloaded" \
-        || exit 1
-    [ -f "$ODIN_DIR/${MODEL}_${REGION}/.downloaded" ] && {
-        echo -n "$(find "$ODIN_DIR/${MODEL}_${REGION}" -name "AP*" -exec basename {} \; | cut -d "_" -f 2)/"
-        echo -n "$(find "$ODIN_DIR/${MODEL}_${REGION}" -name "CSC*" -exec basename {} \; | cut -d "_" -f 3)/"
-        echo -n "$(find "$ODIN_DIR/${MODEL}_${REGION}" -name "CP*" -exec basename {} \; | cut -d "_" -f 2)"
-    } >> "$ODIN_DIR/${MODEL}_${REGION}/.downloaded"
+    cd "$ODIN_DIR" || { echo "Failed to enter ODIN_DIR: $ODIN_DIR"; exit 1; }
+
+    # Directory for firmware download
+    local TARGET_DIR="${ODIN_DIR}/${MODEL}_${REGION}"
+
+    # Ensure the target directory exists
+    if [ ! -d "$TARGET_DIR" ]; then
+        mkdir -p "$TARGET_DIR" || { echo "Failed to create directory: $TARGET_DIR"; exit 1; }
+    fi
+
+    # Determine whether to use -s or -i flag based on the length of $IMEI
+    local SAMLOADER_FLAG
+    if [ "${#IMEI}" -eq 11 ]; then
+        SAMLOADER_FLAG="-s $IMEI"
+    else
+        SAMLOADER_FLAG="-i $IMEI"
+    fi
+
+    # Run samloader and check for success
+    echo "Downloading firmware for $MODEL in region $REGION..."
+    if ! samloader -m "$MODEL" -r "$REGION" $SAMLOADER_FLAG download -O "$TARGET_DIR"; then
+        echo "Firmware download failed."
+        exit 1
+    fi
+
+    # Mark download as successful
+    touch "$TARGET_DIR/.downloaded"
+
+    # Find and unzip firmware zip
+    local ZIP_FILE
+    ZIP_FILE=$(find "$TARGET_DIR" -name "*.zip" | head -n 1)
+    if [ -f "$ZIP_FILE" ]; then
+        echo "Unzipping $ZIP_FILE..."
+        unzip -q "$ZIP_FILE" -d "$TARGET_DIR" || { echo "Failed to unzip $ZIP_FILE"; exit 1; }
+        rm "$ZIP_FILE"  # Optional: Remove the ZIP file after extracting
+    else
+        echo "No ZIP file found in $TARGET_DIR"
+        exit 1
+    fi
+
+    # Write firmware details to .downloaded file
+    {
+        echo -n "$(find "$TARGET_DIR" -name "AP*" -exec basename {} \; | cut -d "_" -f 2)/"
+        echo -n "$(find "$TARGET_DIR" -name "CSC*" -exec basename {} \; | cut -d "_" -f 3)/"
+        echo -n "$(find "$TARGET_DIR" -name "CP*" -exec basename {} \; | cut -d "_" -f 2)"
+    } >> "$TARGET_DIR/.downloaded"
 
     echo ""
-    cd "$PDR"
+    cd "$PDR" || exit
 }
 
+
 FIRMWARES=( "$SOURCE_FIRMWARE" "$TARGET_FIRMWARE" )
 IFS=':' read -a SOURCE_EXTRA_FIRMWARES <<< "$SOURCE_EXTRA_FIRMWARES"
 if [ "${#SOURCE_EXTRA_FIRMWARES[@]}" -ge 1 ]; then
diff --git a/scripts/extract_fw.sh b/scripts/extract_fw.sh
index cce26f2e..2f1f52ad 100755
--- a/scripts/extract_fw.sh
+++ b/scripts/extract_fw.sh
@@ -18,6 +18,8 @@
 
 # shellcheck disable=SC2162
 
+# CMD_HELP Extracts downloaded Firmware
+
 set -e
 
 # [
diff --git a/scripts/make_rom.sh b/scripts/make_rom.sh
index 68eb2f99..a8d95a76 100755
--- a/scripts/make_rom.sh
+++ b/scripts/make_rom.sh
@@ -16,6 +16,8 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+# CMD_HELP Executes series of commands. Downloads, extracts, patches and packages the Rom.
+
 set -Eeuo pipefail
 START=$SECONDS
 
diff --git a/scripts/print_modules_info.sh b/scripts/print_modules_info.sh
index ac8960c0..ca09095f 100755
--- a/scripts/print_modules_info.sh
+++ b/scripts/print_modules_info.sh
@@ -18,6 +18,8 @@
 
 # shellcheck disable=SC2001
 
+# CMD_HELP Prints the available module informations.
+
 set -Ee
 
 # [