diff --git a/.assets/striptracks-synology-2.png b/.assets/striptracks-synology-2.png
new file mode 100644
index 0000000..87ec76a
Binary files /dev/null and b/.assets/striptracks-synology-2.png differ
diff --git a/.assets/striptracks-synology.png b/.assets/striptracks-synology.png
index 84c9af7..e27314a 100644
Binary files a/.assets/striptracks-synology.png and b/.assets/striptracks-synology.png differ
diff --git a/Dockerfile b/Dockerfile
index 2430414..e117603 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,10 @@ RUN \
 ## Single layer deployed image ##
 FROM scratch
 
-LABEL maintainer="TheCaptain989"
+LABEL org.opencontainers.image.source=https://github.com/TheCaptain989/radarr-striptracks
+LABEL org.opencontainers.image.description="A Docker Mod to Radarr/Sonarr to automatically strip out unwanted audio and subtitle streams"
+LABEL org.opencontainers.image.licenses=GPL-3.0-only
+LABEL org.opencontainers.image.authors="TheCaptain989"
 
 # Add files from buildstage
 COPY --from=buildstage /root-layer/ /
diff --git a/README.md b/README.md
index c238bb2..922fdcc 100644
--- a/README.md
+++ b/README.md
@@ -6,11 +6,11 @@ A [Docker Mod](https://github.com/linuxserver/docker-mods) for the LinuxServer.i
 **This unified script works in both Radarr and Sonarr.  Use this mod in either container!**
 >**NOTE:** This mod supports Linux OSes only.
 
-Container info:
+Production Container info: ![Docker Image Size](https://img.shields.io/docker/image-size/linuxserver/mods/radarr-striptracks "Container Size")  
+Development Container info:
 ![Docker Image Size](https://img.shields.io/docker/image-size/thecaptain989/radarr-striptracks "Container Size")
 ![Docker Pulls](https://img.shields.io/docker/pulls/thecaptain989/radarr-striptracks "Container Pulls")
 [![GitHub Super-Linter](https://github.com/TheCaptain989/radarr-striptracks/actions/workflows/linter.yml/badge.svg)](https://github.com/TheCaptain989/radarr-striptracks/actions/workflows/linter.yml "Linter Job")  
-Production Container info: ![Docker Image Size](https://img.shields.io/docker/image-size/linuxserver/mods/radarr-striptracks "Container Size")  
 
 # Installation
 1. Pull your selected container ([linuxserver/radarr](https://hub.docker.com/r/linuxserver/radarr "LinuxServer.io's Radarr container") or [linuxserver/sonarr](https://hub.docker.com/r/linuxserver/sonarr "LinuxServer.io's Sonarr container")) from GitHub Container Registry or Docker Hub:  
@@ -75,10 +75,10 @@ Production Container info: ![Docker Image Size](https://img.shields.io/docker/im
    ![striptracks v3](.assets/striptracks-v3-custom-script.png "Radarr/Sonarr custom script settings")
 
    The script will detect the language(s) defined in Radarr/Sonarr for the movie or TV show and only keep the audio and subtitles selected.  
-   Alternatively, a wrapper script may be used to more granularly define which tracks to keep.  See [Wrapper Scripts](./README.md#wrapper-scripts) for more details.
+   Alternatively, a wrapper script or an environment variable may be used to more granularly define which tracks to keep.  See [Wrapper Scripts](./README.md#wrapper-scripts) or [Environment Variable](./README.md#environment-variable) for more details.
 
 # Usage
-The source video can be any mkvtoolnix supported video format. The output is an MKV file with the same name.  
+The source video can be any mkvtoolnix supported video format. The output is an MKV file with the same name and the same permissions. Owner is preserved if the script is executed as root.  
 Chapters, if they exist, are preserved. The Title attribute in the MKV is set to the movie title plus year  
 (ex: `The Sting (1973)`) or the series title plus episode information (ex: `Happy! 01x01 - What Smiles Are For`).  
 The language of the video file will be updated in the Radarr or Sonarr database to reflect the actual languages preserved in the remuxed video, and the video will be renamed according to the Radarr/Sonarr rules if needed (for example, if a removed track would trigger a name change.)
@@ -135,7 +135,7 @@ graph LR
 ```
 
 Descriptively, these steps are:
-1. Command-line options override all automatic language selection.
+1. Command-line options (or environment variable) override all automatic language selection.
 2. If there are no command-line options, the video's *Quality Profile* is examined for a language configuration (only supported in Radarr).
 3. If there is no *Quality Profile* language **or** it is set to 'Any', then examine the *Custom Formats* and scores associated with the quality profile.  All language conditions with positive scores *and* negated conditions with negative score are selected.
 4. If the *Custom Format* scores are zero (0) or there are none with configured language conditions, examine the *Language Profile* (only supported in Sonarr v3)
@@ -173,7 +173,7 @@ For example:
 
 Multiple codes may be concatenated, such as `:eng:spa` for both English and Spanish.  Order is unimportant.
 
->![warning] **NOTE:** If no subtitle language is detected in the profile or specified on the command-line, all subtitles are removed.
+>![warning] **NOTE:** If no subtitle language is detected via Radarr/Sonarr configuration or specified on the command-line, all subtitles are removed.
 
 ### Any language code
 The `:any` language code is a special code. When used, the script will preserve all language tracks, regardless of how they are tagged in the source video.
@@ -215,7 +215,7 @@ There is no way to force the script to remove audio tracks with these codes.
 ```
 
 ## Wrapper Scripts
-To supply arguments to the script, one of the included wrapper scripts may be used or a custom wrapper script must be created.
+To supply arguments to the script, you must either use one of the included wrapper scripts, create a custom wrapper script, or set the `STRIPTRACKS_ARGS` [environment variable](./README.md#environment-variable).
 
 ### Included Wrapper Scripts
 For your convenience, several wrapper scripts are included in the `/usr/local/bin/` directory.  
@@ -258,8 +258,29 @@ Then put `/config/striptracks-custom.sh` in the **Path** field in place of `/usr
 
 >**Note:** If you followed the Linuxserver.io recommendations when configuring your container, the `/config` directory will be mapped to an external storage location.  It is therefore recommended to place custom scripts in the `/config` directory so they will survive container updates, but they may be placed anywhere that is accessible by Radarr or Sonarr.
 
+## Environment Variable
+The `striptracks.sh` script also allows the use of arguments provided by the `STRIPTRACKS_ARGS` environment variable. This allows advanced use cases without having to provide a custom script.
+
+For example, the following value in your `docker run` command would Keep English, Japanese, and Unknown audio and English subtitles:
+
+```shell
+-e STRIPTRACKS_ARGS='--audio :eng:jpn:und --subs :eng'
+```
+
+In Docker Compose this will look like this:
+
+```yaml
+environment:
+  - STRIPTRACKS_ARGS=--audio :eng:jpn:und --subs :eng
+```
+
+*Example Synology Configuration*  
+![striptracks](.assets/striptracks-synology-2.png "Synology container settings")
+
+>**NOTE:** The environment variable settings are *only* used when **no** command-line arguments are present. **Any** command-line argument will disable the use of the environment variable.
+
 ## Triggers
-The only events/notification triggers that have been tested are **On Import** and **On Upgrade**
+The only events/notification triggers that are supported are **On Import** and **On Upgrade**
 
 ## Batch Mode
 Batch mode allows the script to be executed independently of Radarr or Sonarr.  It converts the file specified on the command-line and ignores any environment variables that are normally expected to be set by the video management program.
diff --git a/SECURITY.md b/SECURITY.md
index 94d33bc..46cfa04 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -6,8 +6,8 @@ Only the latest major and minor version are supported.
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 2.5.x   | :heavy_check_mark: |
-| < 2.5   | :x:                |
+| 2.6.x   | :heavy_check_mark: |
+| < 2.6   | :x:                |
 
 ## Reporting a Vulnerability
 
diff --git a/root/usr/local/bin/striptracks.sh b/root/usr/local/bin/striptracks.sh
index 61e591d..f257c12 100755
--- a/root/usr/local/bin/striptracks.sh
+++ b/root/usr/local/bin/striptracks.sh
@@ -41,6 +41,7 @@
 # 11 - source video had no audio or subtitle tracks
 # 12 - log file is not writable
 # 13 - awk script exited abnormally
+# 15 - could not set permissions and/or owner on new file
 # 16 - could not delete the original file
 # 17 - Radarr/Sonarr API error
 # 18 - Radarr/Sonarr job timeout
@@ -71,6 +72,9 @@ Source: https://github.com/TheCaptain989/radarr-striptracks
 Usage:
   $0 [{-a|--audio} <audio_languages> [{-s|--subs} <subtitle_languages>] [{-f|--file} <video_file>]] [{-l|--log} <log_file>] [{-d|--debug} [<level>]]
 
+  Options can also be set via the STRIPTRACKS_ARGS environment variable.
+  Command-line arguments override the environment variable.
+
 Options and Arguments:
   -a, --audio <audio_languages>    Audio languages to keep
                                    ISO639-2 code(s) prefixed with a colon \`:\`
@@ -125,6 +129,17 @@ Examples:
   echo "$usage" >&2
 }
 
+# Check for environment variable arguments
+if [ -n "$STRIPTRACKS_ARGS" ]; then
+  if [ $# -ne 0 ]; then
+    striptracks_prelogmessage="Warning|STRIPTRACKS_ARGS environment variable set but will be ignored because command line arguments were also specified."
+  else
+    # Move the environment variable arguments to the command line for processing
+    striptracks_prelogmessage="Info|Using settings from environment variable."
+    eval set -- "$STRIPTRACKS_ARGS"
+  fi
+fi
+
 # Process arguments
 # Taken from Drew Strokes post 3/24/2015:
 #  https://medium.com/@Drew_Stokes/bash-argument-parsing-54f3b81a6a8f
@@ -845,9 +860,24 @@ if [ $striptracks_debug -ge 1 ]; then
   echo "$striptracks_message" >&2
 fi
 
+# Log STRIPTRACKS_ARGS usage
+if [ -n "$striptracks_prelogmessage" ]; then
+  # striptracks_prelogmessage is set above, before argument processing
+  echo "$striptracks_prelogmessage" | log
+  [ $striptracks_debug -ge 1 ] && echo "Debug|STRIPTRACKS_ARGS: ${STRIPTRACKS_ARGS}" | log
+fi
+
 # Log environment
 [ $striptracks_debug -ge 2 ] && printenv | sort | sed 's/^/Debug|/' | log
 
+# Check for invalid _eventtypes
+if [[ "${!striptracks_eventtype}" =~ Grab|Rename|MovieAdded|MovieDelete|MovieFileDelete|SeriesAdd|SeriesDelete|EpisodeFileDelete|HealthIssue|ApplicationUpdate ]]; then
+  striptracks_message="Error|${striptracks_type^} event ${!striptracks_eventtype} is not supported. Exiting."
+  echo "$striptracks_message" | log
+  echo "$striptracks_message" >&2
+  end_script 20
+fi
+
 # Handle Test event
 if [[ "${!striptracks_eventtype}" = "Test" ]]; then
   echo "Info|${striptracks_type^} event: ${!striptracks_eventtype}" | log
@@ -881,6 +911,16 @@ elif [ -f "$striptracks_arr_config" ]; then
     [[ $striptracks_xml_entity = "ApiKey" ]] && striptracks_apikey=$striptracks_xml_content
   done < $striptracks_arr_config
 
+  # Allow use of environment variables from https://github.com/Sonarr/Sonarr/pull/6746
+  striptracks_port_var="${striptracks_type^^}__SERVER__PORT"
+  [ -n "${!striptracks_port_var}" ] && striptracks_port="${!striptracks_port_var}"
+  striptracks_urlbase_var="${striptracks_type^^}__SERVER__URLBASE"
+  [ -n "${!striptracks_urlbase_var}" ] && striptracks_urlbase="${!striptracks_urlbase_var}"
+  striptracks_bindaddress_var="${striptracks_type^^}__SERVER__BINDADDRESS"
+  [ -n "${!striptracks_bindaddress_var}" ] && striptracks_bindaddress="${!striptracks_bindaddress_var}"
+  striptracks_apikey_var="${striptracks_type^^}__AUTH__APIKEY"
+  [ -n "${!striptracks_apikey_var}" ] && striptracks_apikey="${!striptracks_apikey_var}"
+
   # Check for localhost
   [[ $striptracks_bindaddress = "*" ]] && striptracks_bindaddress=localhost
 
@@ -1352,6 +1392,30 @@ if [ ! -s "$striptracks_tempvideo" ]; then
   end_script 10
 fi
 
+# Checking that we're running as root
+if [ "$(id -u)" -eq 0 ]; then
+  # Set owner
+  [ $striptracks_debug -ge 1 ] && echo "Debug|Changing owner of file \"$striptracks_tempvideo\"" | log
+  chown --reference="$striptracks_video" "$striptracks_tempvideo" >&2
+  striptracks_return=$?; [ $striptracks_return -ne 0 ] && {
+    striptracks_message="Error|[$striptracks_return] Error when changing owner of file: \"$striptracks_tempvideo\""
+    echo "$striptracks_message" | log
+    echo "$striptracks_message" >&2
+    striptracks_exitstatus=15
+  }
+else
+  # Unable to change owner when not running as root
+  [ $striptracks_debug -ge 1 ] && echo "Debug|Unable to change owner of file when running as user '$(id -un)'" | log
+fi
+# Set permissions
+chmod --reference="$striptracks_video" "$striptracks_tempvideo" >&2
+striptracks_return=$?; [ $striptracks_return -ne 0 ] && {
+  striptracks_message="Error|[$striptracks_return] Error when changing permissions of file: \"$striptracks_tempvideo\""
+  echo "$striptracks_message" | log
+  echo "$striptracks_message" >&2
+  striptracks_exitstatus=15
+}
+
 # Just delete the original video if running in batch mode
 if [ "$striptracks_type" = "batch" ]; then
   [ $striptracks_debug -ge 1 ] && echo "Debug|Deleting: \"$striptracks_video\"" | log