diff --git a/ram/portal/templatetags/dcc.py b/ram/portal/templatetags/dcc.py
index ab3c1c0..d71193e 100644
--- a/ram/portal/templatetags/dcc.py
+++ b/ram/portal/templatetags/dcc.py
@@ -17,15 +17,13 @@ def dcc(object):
             f'<i class="bi bi-dice-6"></i></abbr>'
         )
     if object.decoder:
+        decoder = mark_safe(f'<abbr title="{object.decoder}">')
         if object.decoder.sound:
-            decoder = mark_safe(
-                f'<abbr title="{object.decoder}">'
+            decoder += mark_safe(
                 '<i class="bi bi-volume-up-fill"></i></abbr>'
             )
         else:
-            decoder = mark_safe(
-                f'<abbr title="{object.decoder}'
-                f'({object.get_decoder_interface()})">'
+            decoder += mark_safe(
                 '<i class="bi bi-cpu-fill"></i></abbr>'
             )
     if decoder:
diff --git a/ram/ram/settings.py b/ram/ram/settings.py
index c149e47..6292e15 100644
--- a/ram/ram/settings.py
+++ b/ram/ram/settings.py
@@ -1,17 +1,7 @@
 """
 Django settings for ram project.
-
-Generated by 'django-admin startproject' using Django 4.0.
-
-For more information on this file, see
-https://docs.djangoproject.com/en/4.0/topics/settings/
-
-For the full list of settings and their values, see
-https://docs.djangoproject.com/en/4.0/ref/settings/
 """
 
-import os
-import time
 from pathlib import Path
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
@@ -23,7 +13,7 @@ STORAGE_DIR = BASE_DIR / "storage"
 
 # SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = (
-    "django-insecure-1fgtf05rwp0qp05@ef@a7%x#o+t6vk6063py=vhdmut0j!8s4u"
+    "django-ram-insecure-Chang3m3-1n-Pr0duct10n!"
 )
 
 # SECURITY WARNING: don't run with debug turned on in production!
@@ -31,9 +21,6 @@ DEBUG = True
 
 ALLOWED_HOSTS = ["*"]
 
-
-# Application definition
-
 INSTALLED_APPS = [
     "django.contrib.admin",
     "django.contrib.auth",
@@ -87,10 +74,6 @@ TEMPLATES = [
 
 WSGI_APPLICATION = "ram.wsgi.application"
 
-
-# Database
-# https://docs.djangoproject.com/en/4.0/ref/settings/#databases
-
 DATABASES = {
     "default": {
         "ENGINE": "django.db.backends.sqlite3",
@@ -98,54 +81,38 @@ DATABASES = {
     }
 }
 
-
-# Password validation
-# https://docs.djangoproject.com/en/4.0/ref/settings/#auth-password-validators
-
 AUTH_PASSWORD_VALIDATORS = [
     {
-        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",  # noqa: E501
     },
     {
-        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",  # noqa: E501
     },
     {
-        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",  # noqa: E501
     },
     {
-        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",  # noqa: E501
     },
 ]
 
 
-# Internationalization
-# https://docs.djangoproject.com/en/4.0/topics/i18n/
-
 LANGUAGE_CODE = "en-us"
-
 TIME_ZONE = "UTC"
-
 USE_I18N = True
-
 USE_TZ = True
 
-
-# Static files (CSS, JavaScript, Images)
-# https://docs.djangoproject.com/en/4.0/howto/static-files/
-
 STATIC_URL = "static/"
 
-# Default primary key field type
-# https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field
-
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
 
 MEDIA_URL = "media/"
 MEDIA_ROOT = STORAGE_DIR / "media"
 
+# django-ram REST API settings
 REST_ENABLED = False  # Set to True to enable the REST API
 REST_FRAMEWORK = {
-    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.LimitOffsetPagination",
+    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.LimitOffsetPagination",  # noqa: E501
     "PAGE_SIZE": 5,
 }
 
@@ -171,7 +138,7 @@ COUNTRIES_OVERRIDE = {
     "XX": "None",
 }
 
-SITE_NAME = "Railroad Assets Manger"
+SITE_NAME = "Railroad Assets Manager"
 
 # Image used on cards without a custom image uploaded.
 # The file must be placed in the root of the 'static' folder
@@ -184,9 +151,10 @@ DECODER_INTERFACES = [
     (0, "Built-in"),
     (1, "NEM651"),
     (2, "NEM652"),
-    (3, "PluX"),
-    (4, "21MTC"),
-    (5, "Next18/Next18S"),
+    (3, "NEM658 (Plux22)"),
+    (4, "NEM660 (21MTC)"),
+    (5, "NEM662 (Next18/Next18S)"),
+    (3, "NEM658 (Plux16)"),
 ]
 
 MANUFACTURER_TYPES = [
diff --git a/ram/roster/migrations/0040_alter_rollingstock_decoder_interface.py b/ram/roster/migrations/0040_alter_rollingstock_decoder_interface.py
new file mode 100644
index 0000000..44c65a5
--- /dev/null
+++ b/ram/roster/migrations/0040_alter_rollingstock_decoder_interface.py
@@ -0,0 +1,30 @@
+# Generated by Django 6.0 on 2026-01-08 11:14
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("roster", "0039_rollingstock_featured"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="rollingstock",
+            name="decoder_interface",
+            field=models.PositiveSmallIntegerField(
+                blank=True,
+                choices=[
+                    (0, "Built-in"),
+                    (1, "NEM651"),
+                    (2, "NEM652"),
+                    (3, "NEM658 (Plux22)"),
+                    (4, "NEM660 (21MTC)"),
+                    (5, "NEM662 (Next18/Next18S)"),
+                    (3, "NEM658 (Plux16)"),
+                ],
+                null=True,
+            ),
+        ),
+    ]