diff --git a/Dockerfile b/Dockerfile
index 521f9a9..df3b615 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/baseimage-selkies:debianbookworm
+FROM ghcr.io/linuxserver/baseimage-selkies:debiantrixie
 
 # set version label
 ARG BUILD_DATE
diff --git a/README.md b/README.md
index c398385..9e88633 100644
--- a/README.md
+++ b/README.md
@@ -220,8 +220,6 @@ services:
   shotcut:
     image: lscr.io/linuxserver/shotcut:latest
     container_name: shotcut
-    security_opt:
-      - seccomp:unconfined #optional
     environment:
       - PUID=1000
       - PGID=1000
@@ -231,6 +229,7 @@ services:
     ports:
       - 3000:3000
       - 3001:3001
+    shm_size: "1gb"
     restart: unless-stopped
 ```
 
@@ -239,13 +238,13 @@ services:
 ```bash
 docker run -d \
   --name=shotcut \
-  --security-opt seccomp=unconfined `#optional` \
   -e PUID=1000 \
   -e PGID=1000 \
   -e TZ=Etc/UTC \
   -p 3000:3000 \
   -p 3001:3001 \
   -v /path/to/data:/config \
+  --shm-size="1gb" \
   --restart unless-stopped \
   lscr.io/linuxserver/shotcut:latest
 ```
@@ -262,7 +261,7 @@ Containers are configured using parameters passed at runtime (such as those abov
 | `-e PGID=1000` | for GroupID - see below for explanation |
 | `-e TZ=Etc/UTC` | specify a timezone to use, see this [list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List). |
 | `-v /config` | Where Shotcut should store its config. |
-| `--security-opt seccomp=unconfined` | For Docker Engine only, many modern gui apps need this to function as syscalls are unkown to Docker. |
+| `--shm-size=` | Recommended for all desktop images. |
 
 ## Environment variables from files (Docker secrets)
 
@@ -426,5 +425,6 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **22.09.25:** - Rebase to Debian Trixie.
 * **12.07.25:** - Rebase to Selkies, HTTPS IS NOW REQUIRED.
 * **31.01.24:** - Initial release.
diff --git a/readme-vars.yml b/readme-vars.yml
index 23049cc..3698df0 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -17,9 +17,6 @@ development_versions: false
 common_param_env_vars_enabled: true
 param_container_name: "{{ project_name }}"
 param_usage_include_net: false
-param_usage_include_env: false
-param_env_vars:
-  - {env_var: "TZ", env_value: "Europe/London", desc: "Specify a timezone to use EG Europe/London."}
 param_usage_include_vols: true
 param_volumes:
   - {vol_path: "/config", vol_host_path: "/path/to/data", desc: "Where Shotcut should store its config."}
@@ -37,9 +34,8 @@ opt_param_usage_include_ports: false
 opt_param_device_map: false
 opt_cap_add_param: false
 optional_block_1: false
-opt_security_opt_param: true
-opt_security_opt_param_vars:
-  - {run_var: "seccomp=unconfined", compose_var: "seccomp:unconfined", desc: "For Docker Engine only, many modern gui apps need this to function as syscalls are unkown to Docker."}
+custom_params:
+  - {name: "shm-size", name_compose: "shm_size", value: "1gb", desc: "Recommended for all desktop images."}
 # Selkies blurb settings
 selkies_blurb: true
 show_nvidia: true
@@ -121,5 +117,6 @@ init_diagram: |
   "shotcut:latest" <- Base Images
 # changelog
 changelogs:
+  - {date: "22.09.25:", desc: "Rebase to Debian Trixie."}
   - {date: "12.07.25:", desc: "Rebase to Selkies, HTTPS IS NOW REQUIRED."}
   - {date: "31.01.24:", desc: "Initial release."}