diff --git a/install/webapp/README.md b/install/webapp/README.md
new file mode 100644
index 0000000..1e2f304
--- /dev/null
+++ b/install/webapp/README.md
@@ -0,0 +1,15 @@
+# Webapp Installation
+===
+
+1. Ensure that "Open link in tabs instead of new windows" is **NOT** selected.
+
+2. Ensure Digital Rights Management (DRM) is selected in settings. Search `drm` if you cant find it.
+
+3. Right click on the the bookmark bar and select “never show”. 
+
+4. Close the bar about previous tabs if it exists to remove the nav bar.
+
+5. Launch the app (example: Discord) and go into a room you own or that no one else is in. Start the audio chat and select the mic. Check
+   the "Remember for all microphones" option in the box and click allow.
+
+6. Click the screen share button and allow it.
diff --git a/utilities/media/ffmpegctl.sh b/utilities/media/ffmpegctl.sh
new file mode 100755
index 0000000..f492794
--- /dev/null
+++ b/utilities/media/ffmpegctl.sh
@@ -0,0 +1,687 @@
+#!/bin/bash
+
+###############################################################################
+# FFmpeg Advanced Filter Chain Wrapper with fzf
+# Description:
+#   Automates FFmpeg operations with dynamic parameter selection,
+#   hardware acceleration options, advanced filter chains for interpolation,
+#   multi-pass encoding, optional logging, and refined user prompts for bitrates
+#   and motion interpolation settings.
+###############################################################################
+
+set -e
+
+###############################################################################
+# Global Variables & Dependency Handling
+###############################################################################
+DEPENDENCIES=(ffmpeg fzf)
+PKG_MANAGER=""
+LOG_FILE="ffmpeg_wrapper.log"
+LOG_OPTION=""
+VERBOSE=false
+
+# Flags for Hardware Acceleration
+HW_ACCEL_AVAILABLE=false
+HW_ACCEL_CHOICE=""
+
+# Encoding & Filter Variables
+INPUT_FILE=""
+OUTPUT_FILE=""
+PROFILE=""
+FPS=60
+VIDEO_CODEC=""
+PIX_FMT="nv12"
+ENCODE_OPTION=""
+AUDIO_OPTION=""
+WIDTH=3840
+HEIGHT=2160
+FILTER_CHAIN=""
+BITRATE=""
+CRF=23
+MULTI_PASS_CHOICE=""
+
+# Interpolation Parameters
+INTERP_ME_MODE="bidir"       # e.g., bidir, fwd
+INTERP_ME="epzs"             # e.g., epzs, umh, hex
+INTERP_MOTION_THRESHOLD=100  # For content analysis, if motion score > threshold => advanced tweak
+
+###############################################################################
+# 1. Basic Utility Functions
+###############################################################################
+command_exists() {
+    command -v "$1" >/dev/null 2>&1
+}
+
+detect_package_manager() {
+    if command_exists pacman; then
+        PKG_MANAGER="pacman"
+    elif command_exists yay; then
+        PKG_MANAGER="yay"
+    else
+        echo "Unsupported package manager. Please install dependencies manually."
+        exit 1
+    fi
+}
+
+install_dependencies() {
+    for cmd in "${DEPENDENCIES[@]}"; do
+        if ! command_exists "$cmd"; then
+            echo "Installing $cmd..."
+            if [ "$PKG_MANAGER" == "pacman" ]; then
+                sudo pacman -S --noconfirm "$cmd"
+            elif [ "$PKG_MANAGER" == "yay" ]; then
+                yay -S --noconfirm "$cmd"
+            fi
+        fi
+    done
+}
+
+###############################################################################
+# 2. Logging & Verbose Mode
+###############################################################################
+prompt_verbose_mode() {
+    read -rp "Do you want to enable verbose logging? (y/N): " VERBOSE_CHOICE
+    case "$VERBOSE_CHOICE" in
+        [Yy]* )
+            VERBOSE=true
+            ;;
+        * )
+            VERBOSE=false
+            ;;
+    esac
+}
+
+setup_logging() {
+    LOG_FILE="ffmpeg_wrapper.log"
+    if [ "$VERBOSE" = true ]; then
+        LOG_OPTION='2>&1 | tee -a "ffmpeg_wrapper.log"'
+    else
+        LOG_OPTION='2>&1 | tee -a "ffmpeg_wrapper.log" >/dev/null'
+    fi
+}
+
+###############################################################################
+# 3. File Selection
+###############################################################################
+select_input_file() {
+    MEDIA_EXTENSIONS=("*.mp4" "*.mkv" "*.mov" "*.avi" "*.wmv" "*.flv" "*.webm" \
+                      "*.mpg" "*.mpeg" "*.m4v" "*.3gp" "*.3g2" "*.ts" "*.mts" \
+                      "*.m2ts" "*.vob")
+
+    FIND_CMD="find . -type f \( "
+    for ext in "${MEDIA_EXTENSIONS[@]}"; do
+        FIND_CMD+=" -iname \"$ext\" -o"
+    done
+    FIND_CMD=${FIND_CMD% -o}
+    FIND_CMD+=" \)"
+
+    INPUT_FILE=$(eval $FIND_CMD | fzf --prompt="Select Input File: " --height=40% --layout=reverse --ansi)
+    if [[ -z "$INPUT_FILE" ]]; then
+        echo "No input file selected. Exiting."
+        exit 1
+    fi
+}
+
+prompt_output_file() {
+    read -rp "Enter the desired output file path (e.g., output.mp4): " OUTPUT_FILE
+    if [[ -z "$OUTPUT_FILE" ]]; then
+        echo "No output file specified. Exiting."
+        exit 1
+    fi
+}
+
+###############################################################################
+# 4. Encoding Profile & Frame Rate
+###############################################################################
+select_encoding_profile() {
+    echo "Choose encoding profile:"
+    echo "1) High Quality"
+    echo "2) Web Streaming"
+    echo "3) Archival"
+    echo "4) Custom"
+    read -rp "Enter the number corresponding to your choice [default: 1]: " PROFILE_CHOICE
+    PROFILE_CHOICE=${PROFILE_CHOICE:-1}
+
+    case $PROFILE_CHOICE in
+        1)
+            PROFILE="high_quality"
+            CRF=18
+            BITRATE="10M"
+            ;;
+        2)
+            PROFILE="web_streaming"
+            CRF=23
+            BITRATE="5M"
+            ;;
+        3)
+            PROFILE="archival"
+            CRF=0
+            BITRATE=""
+            ;;
+        4)
+            PROFILE="custom"
+            ;;
+        *)
+            echo "Invalid choice. Defaulting to High Quality."
+            PROFILE="high_quality"
+            CRF=18
+            BITRATE="10M"
+            ;;
+    esac
+}
+
+prompt_frame_rate() {
+    echo "Choose output frame rate (fps):"
+    echo "1) 30 fps"
+    echo "2) 60 fps (default)"
+    echo "3) 120 fps"
+    echo "4) 240 fps"
+    echo "5) Custom"
+    read -rp "Enter the number corresponding to your choice [default: 2]: " FPS_CHOICE
+    FPS_CHOICE=${FPS_CHOICE:-2}
+    case $FPS_CHOICE in
+        1)
+            FPS=30
+            ;;
+        2)
+            FPS=60
+            ;;
+        3)
+            FPS=120
+            ;;
+        4)
+            FPS=240
+            ;;
+        5)
+            read -rp "Enter custom frame rate (1-240): " FPS
+            if ! [[ "$FPS" =~ ^[0-9]+$ ]] || [ "$FPS" -lt 1 ] || [ "$FPS" -gt 240 ]; then
+                echo "Invalid frame rate. Defaulting to 60 fps."
+                FPS=60
+            fi
+            ;;
+        *)
+            echo "Invalid choice. Defaulting to 60 fps."
+            FPS=60
+            ;;
+    esac
+}
+
+###############################################################################
+# 5. Hardware Acceleration & Codec Selection
+###############################################################################
+select_hw_accel() {
+    echo "Available hardware accelerations:"
+    HW_ACCEL_LIST=$(ffmpeg -hwaccels | tail -n +2 | tr '[:upper:]' '[:lower:]')
+    AVAILABLE_ACCEL=($(echo "$HW_ACCEL_LIST"))
+
+    if [ ${#AVAILABLE_ACCEL[@]} -eq 0 ]; then
+        echo "No hardware accelerations available."
+        HW_ACCEL_AVAILABLE=false
+        return
+    fi
+
+    for accel in "${AVAILABLE_ACCEL[@]}"; do
+        echo "- $accel"
+    done
+
+    read -rp "Enter the desired hardware acceleration (e.g., cuda, qsv) or press Enter to skip: " HW_ACCEL_CHOICE
+    HW_ACCEL_CHOICE=$(echo "$HW_ACCEL_CHOICE" | tr '[:upper:]' '[:lower:]')
+
+    if [[ -n "$HW_ACCEL_CHOICE" ]]; then
+        if [[ " ${AVAILABLE_ACCEL[*]} " == *" $HW_ACCEL_CHOICE "* ]]; then
+            HW_ACCEL_AVAILABLE=true
+        else
+            echo "Selected hardware acceleration '$HW_ACCEL_CHOICE' is not available. Proceeding without hardware acceleration."
+            HW_ACCEL_CHOICE=""
+            HW_ACCEL_AVAILABLE=false
+        fi
+    else
+        HW_ACCEL_AVAILABLE=false
+    fi
+}
+
+select_video_codec() {
+    declare -A HW_ACCEL_ENCODERS
+    HW_ACCEL_ENCODERS[cuda]="h264_nvenc h265_nvenc"
+    HW_ACCEL_ENCODERS[vaapi]="h264_vaapi h265_vaapi"
+    HW_ACCEL_ENCODERS[qsv]="h264_qsv h265_qsv"
+    HW_ACCEL_ENCODERS[vdpau]="h264_vdpau"
+    HW_ACCEL_ENCODERS[opencl]=""
+    HW_ACCEL_ENCODERS[drm]="h264_drm h265_drm"
+    HW_ACCEL_ENCODERS[vulkan]=""
+
+    SOFTWARE_ENCODERS=("libx264" "libx265")
+
+    echo "Choose video codec:"
+    if [[ "$HW_ACCEL_AVAILABLE" = true ]]; then
+        echo "Available hardware-accelerated encoders for '$HW_ACCEL_CHOICE':"
+        IFS=' ' read -r -a AVAILABLE_HW_ENCODERS <<< "${HW_ACCEL_ENCODERS[$HW_ACCEL_CHOICE]}"
+        if [ ${#AVAILABLE_HW_ENCODERS[@]} -gt 0 ]; then
+            for ((i=0; i<${#AVAILABLE_HW_ENCODERS[@]}; i++)); do
+                echo "$((i+1))) ${AVAILABLE_HW_ENCODERS[i]}"
+            done
+            HW_CODEC_COUNT=${#AVAILABLE_HW_ENCODERS[@]}
+        else
+            echo "No hardware-accelerated encoders available for '$HW_ACCEL_CHOICE'."
+            HW_CODEC_COUNT=0
+        fi
+    fi
+
+    echo "$((HW_CODEC_COUNT + 1))) libx264 (Software-based H.264)"
+    echo "$((HW_CODEC_COUNT + 2))) libx265 (Software-based HEVC)"
+
+    if [[ "$HW_ACCEL_AVAILABLE" = true && "$HW_CODEC_COUNT" -gt 0 ]]; then
+        TOTAL_ENCODERS=$((HW_CODEC_COUNT + 2))
+    else
+        TOTAL_ENCODERS=2
+    fi
+
+    read -rp "Enter the number corresponding to your choice [default: 1]: " CODEC_CHOICE
+    CODEC_CHOICE=${CODEC_CHOICE:-1}
+
+    if [[ "$HW_ACCEL_AVAILABLE" = true && "$HW_CODEC_COUNT" -gt 0 ]]; then
+        if [ "$CODEC_CHOICE" -ge 1 ] && [ "$CODEC_CHOICE" -le "$HW_CODEC_COUNT" ]; then
+            VIDEO_CODEC="${AVAILABLE_HW_ENCODERS[$((CODEC_CHOICE-1))]}"
+            echo "Using video codec: $VIDEO_CODEC (Hardware-accelerated)"
+        elif [ "$CODEC_CHOICE" -eq $((HW_CODEC_COUNT + 1)) ]; then
+            VIDEO_CODEC="libx264"
+            echo "Using video codec: libx264 (Software-based)"
+            HW_ACCEL_AVAILABLE=false
+            HW_ACCEL_CHOICE=""
+        elif [ "$CODEC_CHOICE" -eq $((HW_CODEC_COUNT + 2)) ]; then
+            VIDEO_CODEC="libx265"
+            echo "Using video codec: libx265 (Software-based)"
+            HW_ACCEL_AVAILABLE=false
+            HW_ACCEL_CHOICE=""
+        else
+            echo "Invalid choice. Defaulting to libx264."
+            VIDEO_CODEC="libx264"
+            HW_ACCEL_AVAILABLE=false
+            HW_ACCEL_CHOICE=""
+        fi
+    else
+        if [ "$CODEC_CHOICE" -eq 1 ]; then
+            VIDEO_CODEC="libx264"
+            echo "Using video codec: libx264 (Software-based)"
+        elif [ "$CODEC_CHOICE" -eq 2 ]; then
+            VIDEO_CODEC="libx265"
+            echo "Using video codec: libx265 (Software-based)"
+        else
+            echo "Invalid choice. Defaulting to libx264."
+            VIDEO_CODEC="libx264"
+        fi
+    fi
+}
+
+select_pixel_format() {
+    echo "Choose pixel format for output video:"
+    echo "1) nv12 (Efficient, good quality, hardware accelerated)"
+    echo "2) yuv420p (Most compatible)"
+    echo "3) yuv444p (Higher quality, larger file size)"
+    read -rp "Enter the number corresponding to your choice [default: 1]: " PIX_FMT_CHOICE
+    PIX_FMT_CHOICE=${PIX_FMT_CHOICE:-1}
+
+    case $PIX_FMT_CHOICE in
+        1)
+            PIX_FMT="nv12"
+            ;;
+        2)
+            PIX_FMT="yuv420p"
+            ;;
+        3)
+            PIX_FMT="yuv444p"
+            ;;
+        *)
+            echo "Invalid choice. Defaulting to nv12."
+            PIX_FMT="nv12"
+            ;;
+    esac
+
+    # Validate hardware-based codecs
+    case "$VIDEO_CODEC" in
+        h264_vaapi|h265_vaapi)
+            if [[ "$PIX_FMT" != "vaapi" && "$PIX_FMT" != "nv12" ]]; then
+                echo "Pixel format '$PIX_FMT' may not be fully compatible with '$VIDEO_CODEC'. Using 'nv12'."
+                PIX_FMT="nv12"
+            fi
+            ;;
+        h264_nvenc|h265_nvenc|h264_qsv|h265_qsv|h264_vdpau|h264_drm|h265_drm)
+            if [[ "$PIX_FMT" != "nv12" ]]; then
+                echo "Pixel format '$PIX_FMT' may not be compatible with '$VIDEO_CODEC'. Using 'nv12'."
+                PIX_FMT="nv12"
+            fi
+            ;;
+        *)
+            ;;
+    esac
+}
+
+###############################################################################
+# 6. Encoding Method
+###############################################################################
+select_encoding_method() {
+    if [ "$PROFILE" == "custom" ]; then
+        echo "Custom Encoding Method Selected."
+        echo "Choose encoding method:"
+        echo "1) Fixed Bitrate"
+        echo "2) CRF (Constant Rate Factor) [Default]"
+        read -rp "Enter the number corresponding to your choice [default: 2]: " ENCODE_METHOD
+        ENCODE_METHOD=${ENCODE_METHOD:-2}
+        case $ENCODE_METHOD in
+            1)
+                echo "Possible examples: 5M, 8M, 12M, 20M, 40M (higher => larger file, better quality)."
+                read -rp "Enter the desired video bitrate: " BITRATE
+                BITRATE=${BITRATE:-8M}
+                ENCODE_OPTION="-b:v $BITRATE"
+                ;;
+            2)
+                read -rp "Enter the desired CRF value (0–51) [default: 23]: " CRF
+                CRF=${CRF:-23}
+                if ! [[ "$CRF" =~ ^[0-9]+$ ]] || [ "$CRF" -lt 0 ] || [ "$CRF" -gt 51 ]; then
+                    echo "Invalid CRF value. Defaulting to 23."
+                    CRF=23
+                fi
+                ENCODE_OPTION="-crf $CRF"
+                ;;
+            *)
+                echo "Invalid choice. Defaulting to CRF 23."
+                ENCODE_OPTION="-crf 23"
+                ;;
+        esac
+    else
+        case "$PROFILE" in
+            high_quality)
+                ENCODE_OPTION="-crf $CRF"
+                ;;
+            web_streaming)
+                ENCODE_OPTION="-crf $CRF -b:v $BITRATE"
+                ;;
+            archival)
+                ENCODE_OPTION="-crf $CRF"
+                ;;
+            *)
+                ENCODE_OPTION="-crf 23"
+                ;;
+        esac
+    fi
+}
+
+prompt_include_audio() {
+    read -rp "Do you want to include audio? (y/N): " INCLUDE_AUDIO
+    case "$INCLUDE_AUDIO" in
+        [Yy]* )
+            AUDIO_OPTION="-c:a copy"
+            ;;
+        * )
+            AUDIO_OPTION="-an"
+            ;;
+    esac
+}
+
+prompt_output_resolution() {
+    echo "Choose output resolution (max 4K):"
+    echo "1) 1920x1080 (1080p)"
+    echo "2) 3840x2160 (4K)"
+    echo "3) Custom"
+    read -rp "Enter the number corresponding to your choice [default: 2]: " RES_CHOICE
+    RES_CHOICE=${RES_CHOICE:-2}
+
+    case $RES_CHOICE in
+        1)
+            WIDTH=1920
+            HEIGHT=1080
+            ;;
+        2)
+            WIDTH=3840
+            HEIGHT=2160
+            ;;
+        3)
+            read -rp "Enter desired width (e.g., 2560): " WIDTH
+            read -rp "Enter desired height (e.g., 1440): " HEIGHT
+            if ! [[ "$WIDTH" =~ ^[0-9]+$ ]] || ! [[ "$HEIGHT" =~ ^[0-9]+$ ]]; then
+                echo "Invalid resolution input. Defaulting to 3840x2160."
+                WIDTH=3840
+                HEIGHT=2160
+            elif [ "$WIDTH" -gt 3840 ] || [ "$HEIGHT" -gt 2160 ]; then
+                echo "Maximum resolution is 3840x2160. Defaulting to 3840x2160."
+                WIDTH=3840
+                HEIGHT=2160
+            fi
+            ;;
+        *)
+            echo "Invalid choice. Defaulting to 3840x2160."
+            WIDTH=3840
+            HEIGHT=2160
+            ;;
+    esac
+}
+
+###############################################################################
+# 7. Interpolation Parameters
+###############################################################################
+prompt_interpolation_params() {
+    echo "Current interpolation uses 'minterpolate' with me_mode=$INTERP_ME_MODE and me=$INTERP_ME."
+    echo "Would you like to customize interpolation search parameters?"
+    echo "1) Keep defaults (bidir + epzs)"
+    echo "2) Use me=umh (slower but possibly smoother interpolation)"
+    read -rp "Enter your choice [default: 1]: " INTERP_CHOICE
+    INTERP_CHOICE=${INTERP_CHOICE:-1}
+
+    case $INTERP_CHOICE in
+        1)
+            INTERP_ME_MODE="bidir"
+            INTERP_ME="epzs"
+            ;;
+        2)
+            INTERP_ME_MODE="bidir"
+            INTERP_ME="umh"
+            ;;
+        *)
+            echo "Invalid choice. Keeping default interpolation."
+            INTERP_ME_MODE="bidir"
+            INTERP_ME="epzs"
+            ;;
+    esac
+}
+
+###############################################################################
+# 8. Advanced Filters
+###############################################################################
+construct_filter_complex() {
+    # Create the minterpolate string with user-selected me_mode and me
+    # Also using eq= for brightness/contrast, colorbalance for color tweak
+    FILTER_CHAIN="minterpolate='mi_mode=mci:mc_mode=aobmc:vsbmc=1:fps=${FPS}:me_mode=${INTERP_ME_MODE}:me=${INTERP_ME}', \
+tblend=all_mode=average, \
+scale=w=${WIDTH}:h=${HEIGHT}:flags=lanczos+accurate_rnd+full_chroma_int:force_original_aspect_ratio=decrease, \
+colorbalance=bs=0.1:gs=0.1:rs=0.1, \
+eq=contrast=1.1:brightness=0.05, \
+pad=${WIDTH}:${HEIGHT}:-1:-1:color=black, \
+scale=out_color_matrix=bt709"
+}
+
+###############################################################################
+# 9. Motion Vector & Content Analysis
+###############################################################################
+analyze_motion_vectors() {
+    read -rp "Do you want to analyze motion vectors for optimization? (y/N): " MV_ANALYZE_CHOICE
+    case "$MV_ANALYZE_CHOICE" in
+        [Yy]* )
+            echo "Analyzing motion vectors..."
+            ffmpeg -flags2 +export_mvs -i "$INPUT_FILE" -vf codecview=mv=pf+bf+bb -f null /dev/null
+            echo "Motion vector analysis completed."
+            ;;
+        * )
+            ;;
+    esac
+}
+
+analyze_video_content() {
+    MOTION_SCORE=$(ffprobe -v error -select_streams v:0 \
+        -show_entries frame=pict_type \
+        -of csv=p=0 "$INPUT_FILE" | grep -E 'B|P' | wc -l)
+
+    echo "Motion score: $MOTION_SCORE"
+    if [ "$MOTION_SCORE" -gt "$INTERP_MOTION_THRESHOLD" ]; then
+        echo "High motion detected. We could further tweak interpolation if desired."
+        # Example: add logic to adjust eq, colorbalance, or me= if we want
+        # but we won't forcibly do it unless user wants an advanced prompt.
+    fi
+}
+
+###############################################################################
+# 10. Single-Pass Command Assembly & Execution
+###############################################################################
+assemble_ffmpeg_command() {
+    HW_ACCEL_OPTION=""
+    if [[ "$HW_ACCEL_AVAILABLE" = true ]]; then
+        case "$HW_ACCEL_CHOICE" in
+            cuda)
+                HW_ACCEL_OPTION="-hwaccel cuda -hwaccel_device 0"
+                ;;
+            qsv)
+                HW_ACCEL_OPTION="-hwaccel qsv -qsv_device 0"
+                ;;
+            vaapi)
+                HW_ACCEL_OPTION="-hwaccel vaapi -vaapi_device /dev/dri/renderD128"
+                ;;
+            vdpau)
+                HW_ACCEL_OPTION="-hwaccel vdpau"
+                ;;
+            drm)
+                HW_ACCEL_OPTION="-hwaccel drm"
+                ;;
+            vulkan)
+                HW_ACCEL_OPTION="-hwaccel vulkan"
+                ;;
+            *)
+                HW_ACCEL_OPTION=""
+                ;;
+        esac
+    fi
+
+    PIX_FMT_OPTION="-pix_fmt $PIX_FMT"
+    case "$VIDEO_CODEC" in
+        h264_vaapi|h265_vaapi)
+            PIX_FMT_OPTION="-pix_fmt vaapi"
+            ;;
+        h264_nvenc|h265_nvenc|h264_qsv|h265_qsv|h264_vdpau|h264_drm|h265_drm)
+            PIX_FMT_OPTION="-pix_fmt nv12"
+            ;;
+        *)
+            ;;
+    esac
+
+    if [[ "$VIDEO_CODEC" == "libx264" || "$VIDEO_CODEC" == "libx265" ]]; then
+        HW_ACCEL_OPTION=""
+    fi
+
+    ffmpeg_command="ffmpeg -hide_banner -nostats \
+$HW_ACCEL_OPTION \
+-i \"$INPUT_FILE\" \
+-f lavfi -i anullsrc \
+-filter_complex \"$FILTER_CHAIN\" \
+-c:v \"$VIDEO_CODEC\" \
+-profile:v high \
+-preset medium \
+$ENCODE_OPTION \
+$PIX_FMT_OPTION \
+-map_metadata 0 \
+-movflags \"frag_keyframe+empty_moov+delay_moov+use_metadata_tags+write_colr\" \
+$AUDIO_OPTION \
+\"$OUTPUT_FILE\""
+
+    echo -e "\nConstructed FFmpeg Command:\n"
+    echo "$ffmpeg_command $LOG_OPTION"
+}
+
+execute_ffmpeg_command() {
+    eval "$ffmpeg_command $LOG_OPTION"
+    echo -e "\nProcessing complete. Output saved to $OUTPUT_FILE\n"
+}
+
+###############################################################################
+# 11. Multi-Pass Encoding (Refined)
+###############################################################################
+multi_pass_encoding() {
+    read -rp "Do you want to perform multi-pass encoding? (y/N): " MULTI_PASS_CHOICE
+    case "$MULTI_PASS_CHOICE" in
+        [Yy]* )
+            echo "Multi-pass encoding. Enter typical bitrates like 5M, 8M, 12M, 20M, 40M, etc."
+            read -rp "Enter the desired bitrate for multi-pass encoding [default: 8M]: " BITRATE
+            BITRATE=${BITRATE:-8M}
+
+            echo "Starting first pass..."
+            FIRST_PASS_CMD="ffmpeg -y -hide_banner -nostats \
+$HW_ACCEL_OPTION \
+-i \"$INPUT_FILE\" \
+-filter_complex \"$FILTER_CHAIN\" \
+-c:v \"$VIDEO_CODEC\" \
+-b:v \"$BITRATE\" \
+-pass 1 \
+-preset medium \
+-f mp4 /dev/null"
+
+            eval "$FIRST_PASS_CMD $LOG_OPTION"
+            echo "First pass completed."
+
+            echo "Starting second pass..."
+            SECOND_PASS_CMD="ffmpeg -hide_banner -nostats \
+$HW_ACCEL_OPTION \
+-i \"$INPUT_FILE\" \
+-filter_complex \"$FILTER_CHAIN\" \
+-c:v \"$VIDEO_CODEC\" \
+-b:v \"$BITRATE\" \
+-pass 2 \
+-preset medium \
+$ENCODE_OPTION \
+$PIX_FMT_OPTION \
+-map_metadata 0 \
+-movflags \"frag_keyframe+empty_moov+delay_moov+use_metadata_tags+write_colr\" \
+$AUDIO_OPTION \
+\"$OUTPUT_FILE\""
+
+            eval "$SECOND_PASS_CMD $LOG_OPTION"
+            echo "Second pass completed. Output saved to $OUTPUT_FILE"
+            ;;
+        * )
+            ;;
+    esac
+}
+
+###############################################################################
+# 12. Main Script Flow
+###############################################################################
+detect_package_manager
+install_dependencies
+
+prompt_verbose_mode
+setup_logging
+
+select_input_file
+prompt_output_file
+
+select_encoding_profile
+prompt_frame_rate
+
+select_hw_accel
+select_video_codec
+select_pixel_format
+
+select_encoding_method
+prompt_include_audio
+prompt_output_resolution
+
+prompt_interpolation_params
+
+construct_filter_complex
+analyze_motion_vectors
+analyze_video_content
+
+assemble_ffmpeg_command
+multi_pass_encoding
+
+if [[ "$MULTI_PASS_CHOICE" =~ ^[Yy]$ ]]; then
+    :
+else
+    execute_ffmpeg_command
+fi