diff --git a/grpoppro b/grpoppro
index f142d71..b25c96f 100755
--- a/grpoppro
+++ b/grpoppro
@@ -23,19 +23,22 @@ MPV_OPTS='--vo=gpu \
   --fs'
 ## End of definitions
 
+# Print usage information
 function usage {
-  echo -e "\n\tUsage:\n\n\t$(basename "$0") \"name of film or show\" [season] [episode(ex 01 02 .. 10 11)]\n\tOr $(basename "$0") [--menu|--resume|--select|--finish]\n\tOr $(basename "$0") --open \"name of film or show\""
+  echo -e "\n\tUsage:\n\n\t$(basename "$0") \"name of film or show\" [season] [episode(ex 01 02 .. 10 11)]"
+  echo -e "\tOr $(basename "$0") [--menu|--resume|--select|--finish]"
+  echo -e "\tOr $(basename "$0") --open \"name of film or show\""
   exit 0
 }
 
+# Ensure fzf is installed for Termux
 function getFzfForTermux {
-  if command -v fzf >/dev/null 2>&1; then
-    echo -e "\n"
-  else
+  if ! command -v fzf >/dev/null 2>&1; then
     apt install -y fzf
   fi
 }
 
+# Display a message
 function message {
   if [[ "$INTERACTIVE" == "on" ]]; then
     notify-send -t 2000 "$1"
@@ -44,6 +47,7 @@ function message {
   fi
 }
 
+# Retrieve IMDb ID
 function getIMDBID {
   imdbid="$(curl -s -L -c "$GRPOPPRO_COOKIE_FILE" -b "$GRPOPPRO_COOKIE_FILE" \
     -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0" \
@@ -57,13 +61,15 @@ function getIMDBID {
   fi
 }
 
-function basics() {
+# Prepare basic steps for a request
+function basics {
   title="$1"
   title="${title// /%20}"
   getIMDBID "$title"
   simpleurl="$apiurl/embed/$imdbid/"
 }
 
+# Retrieve internal ID
 function getInternalID {
   response="$(curl -s -L -c "$GRPOPPRO_COOKIE_FILE" -b "$GRPOPPRO_COOKIE_FILE" \
     -A "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0" \
@@ -80,6 +86,7 @@ function getInternalID {
   internalid="$(echo "$response" | grep news_id | awk '{print $5}' | awk -F\' '{print $2}')"
 }
 
+# Retrieve movie stream URL
 function getMovieStreamUrl {
   PHPSESSID="$(grep 'PHPSESSID' "$GRPOPPRO_COOKIE_FILE" | awk '{print $NF}')"
   streamurl="$(curl -s -L -c "$GRPOPPRO_COOKIE_FILE" -b "$GRPOPPRO_COOKIE_FILE" "$apiurl/engine/ajax/controller.php" --compressed -X POST \
@@ -104,6 +111,7 @@ function getMovieStreamUrl {
   )"
 }
 
+# Stream the video
 function play {
   if [[ "$player" == "mpv" ]]; then
     MPVPID="$(pidof mpv | cut -d' ' -f1)"
@@ -115,6 +123,7 @@ function play {
   eval "$player" "$streamurl"
 }
 
+# Dump data to files
 function dumpData {
   echo "$title" > "$GRPOPPRO_DATA_FILE"
   echo "$seasonEpisode" >> "$GRPOPPRO_DATA_FILE"
@@ -124,6 +133,7 @@ function dumpData {
   tac "$GRPOPPRO_HISTORY_FILE" | awk -F'|' '!seen[$1]++' | tac > "${GRPOPPRO_DATA_DIR}/temp.txt" && mv "${GRPOPPRO_DATA_DIR}/temp.txt" "$GRPOPPRO_HISTORY_FILE"
 }
 
+# Source data from files
 function sourceData {
   if [[ -f "$GRPOPPRO_DATA_FILE" ]]; then
     lastSeriesPlayed="$(sed -n 1p "$GRPOPPRO_DATA_FILE")"
@@ -132,6 +142,7 @@ function sourceData {
   fi
 }
 
+# Perform menu search
 function menuSearch {
   # Two requests to the api
   [[ "$INTERACTIVE" == "on" ]] && title=$(echo "" | wofi --dmenu --insensitive --prompt="Search Series" --width=300 --height=50)
@@ -166,6 +177,7 @@ function menuSearch {
   resume
 }
 
+# Resume last watched series
 function resume {
   # Zero requests to the api
   if [[ ! -f "$GRPOPPRO_DATA_FILE" ]]; then
@@ -188,6 +200,7 @@ function resume {
   done
 }
 
+# Select which series to resume
 function resumeSeries {
   if [[ ! -f "$GRPOPPRO_HISTORY_FILE" ]]; then
     message "No history found"
@@ -230,6 +243,7 @@ function resumeSeries {
   resume
 }
 
+# Resume last watched unfinished episode
 function resumeUnfinishedEpisode {
   # Zero requests to the api
   if [[ ! -f "$GRPOPPRO_DATA_FILE" ]]; then
@@ -250,6 +264,7 @@ function resumeUnfinishedEpisode {
   resume
 }
 
+# Open in browser to watch
 function openInBrowser {
   # One request to the api
   basics "$2"
@@ -260,8 +275,10 @@ function openInBrowser {
 
 ### Program starts here ###
 
+# Make sure the data directory exists
 mkdir -p "$GRPOPPRO_DATA_DIR"
 
+# Exit if a VPN connection is active
 if [[ "$OSTYPE" == "linux-gnu" ]]; then
   if nmcli connection show --active | grep -i -q wireguard; then
     echo "Exiting because a vpn connection is active"
@@ -269,6 +286,7 @@ if [[ "$OSTYPE" == "linux-gnu" ]]; then
   fi
 fi
 
+# Prepare the necessary steps for Termux environment
 [[ "$OSTYPE" != "linux-gnu" ]] && INTERACTIVE="off" && menu="fzf -i --prompt=seasonXepisode" && player="am start -n is.xyz.mpv/.MPVActivity -a android.intent.action.VIEW -d" && getFzfForTermux
 
 [[ "$#" -lt 1 ]] && usage