diff --git a/configuration.yaml b/configuration.yaml
index 9e9a8f7..33ff403 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -2,6 +2,9 @@
 default_config:
 
 # Load frontend themes from the themes folder
+homeassistant:
+  packages: !include_dir_named packages
+
 frontend:
   themes: !include_dir_merge_named themes
 
@@ -10,17 +13,3 @@ script: !include scripts.yaml
 scene: !include scenes.yaml
 
 bluetooth:
-
-# Network UPS Tools — both plant UPS [#439]
-# tsys1: APC Smart-UPS C1500 (apc-smartups-c1500), tsys9: Tripp Lite (tripplite)
-nut:
-  - host: pfv-tsys1-lan.knel.net
-    port: 3493
-    username: homeassistant
-    password: !secret nut_tsys1_pw
-    alias: tsys1_ups
-  - host: pfv-tsys9-lan.knel.net
-    port: 3493
-    username: homeassistant
-    password: !secret nut_tsys9_pw
-    alias: tsys9_ups
diff --git a/packages/plant-snmp.yaml b/packages/plant-snmp.yaml
new file mode 100644
index 0000000..46506c2
--- /dev/null
+++ b/packages/plant-snmp.yaml
@@ -0,0 +1,258 @@
+sensor:
+  # --- TEMPer USB probe hosts (External probe, Internal fallback) ---
+  - platform: snmp
+    name: "PFV artroom temperature"
+    host: stlpc-artroom.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_artroom_temperature
+    value_template: >-
+      {% set ext = value | regex_findall('External:\s*\+?(-?\d+\.?\d*)') %}
+      {% set int = value | regex_findall('Internal:\s*\+?(-?\d+\.?\d*)') %}
+      {% set c = (ext | first) if ext else ((int | first) if int else none) %}
+      {{ ((c | float * 9 / 5) + 32) | round(1) if c is not none else 'unknown' }}
+
+  - platform: snmp
+    name: "PFV garage temperature"
+    host: stlpc-garage.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_garage_temperature
+    value_template: >-
+      {% set ext = value | regex_findall('External:\s*\+?(-?\d+\.?\d*)') %}
+      {% set int = value | regex_findall('Internal:\s*\+?(-?\d+\.?\d*)') %}
+      {% set c = (ext | first) if ext else ((int | first) if int else none) %}
+      {{ ((c | float * 9 / 5) + 32) | round(1) if c is not none else 'unknown' }}
+
+  - platform: snmp
+    name: "PFV tsys1 rack temperature"
+    host: pfv-tsys1.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys1_rack_temperature
+    value_template: >-
+      {% set ext = value | regex_findall('External:\s*\+?(-?\d+\.?\d*)') %}
+      {% set int = value | regex_findall('Internal:\s*\+?(-?\d+\.?\d*)') %}
+      {% set c = (ext | first) if ext else ((int | first) if int else none) %}
+      {{ ((c | float * 9 / 5) + 32) | round(1) if c is not none else 'unknown' }}
+
+  # --- Native lm-sensors hosts (label picked per host ground truth 2026-08-27) ---
+  # tsys3 Precision 7510: CPU package
+  - platform: snmp
+    name: "PFV tsys3 CPU temperature"
+    host: pfv-tsys3.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys3_cpu_temperature
+    value_template: >-
+      {% set m = value | regex_findall('Package id 0:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  # tsys4 Precision T1700: Dell SMM ambient (board inlet)
+  - platform: snmp
+    name: "PFV tsys4 ambient temperature"
+    host: pfv-tsys4.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys4_ambient_temperature
+    value_template: >-
+      {% set m = value | regex_findall('Ambient:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  # tsys5 Precision T7500: Dell SMM ambient (board inlet)
+  - platform: snmp
+    name: "PFV tsys5 ambient temperature"
+    host: pfv-tsys5.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys5_ambient_temperature
+    value_template: >-
+      {% set m = value | regex_findall('Ambient:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  # tsys6 PowerEdge R610: socket-0 core temp (no Package label on Westmere)
+  - platform: snmp
+    name: "PFV tsys6 CPU temperature"
+    host: pfv-tsys6.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys6_cpu_temperature
+    value_template: >-
+      {% set m = value | regex_findall('Core 0:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  # tsys6 ACPI power meter (node draw, watts)
+  - platform: snmp
+    name: "PFV tsys6 node power"
+    host: pfv-tsys6.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: power
+    state_class: measurement
+    unit_of_measurement: "W"
+    unique_id: pfv_tsys6_node_power
+    value_template: >-
+      {% set m = value | regex_findall('power1:\s*(\d+\.?\d*)\s*W') %}
+      {{ m | first | float if m else 'unknown' }}
+
+  # tsys7 PowerEdge R620: package temp
+  - platform: snmp
+    name: "PFV tsys7 CPU temperature"
+    host: pfv-tsys7.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys7_cpu_temperature
+    value_template: >-
+      {% set m = value | regex_findall('Package id 0:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  # tsys7 ACPI power meter (node draw, watts)
+  - platform: snmp
+    name: "PFV tsys7 node power"
+    host: pfv-tsys7.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: power
+    state_class: measurement
+    unit_of_measurement: "W"
+    unique_id: pfv_tsys7_node_power
+    value_template: >-
+      {% set m = value | regex_findall('power1:\s*(\d+\.?\d*)\s*W') %}
+      {{ m | first | float if m else 'unknown' }}
+
+  # tsys9 OptiPlex 7080: package temp
+  - platform: snmp
+    name: "PFV tsys9 CPU temperature"
+    host: pfv-tsys9.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_tsys9_cpu_temperature
+    value_template: >-
+      {% set m = value | regex_findall('Package id 0:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  # --- SBC fleet (sysfs thermal fallback in lmsensors-extend v2; temp1 = zone0/SoC) ---
+  - platform: snmp
+    name: "PFV jetson temperature"
+    host: pfv-jetson-nano-1.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_jetson_temperature
+    value_template: >-
+      {% set m = value | regex_findall('temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  - platform: snmp
+    name: "PFV svrpi temperature"
+    host: pfvsvrpi.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_svrpi_temperature
+    value_template: >-
+      {% set m = value | regex_findall('temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  - platform: snmp
+    name: "PFV subopi3 temperature"
+    host: subopi3.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_subopi3_temperature
+    value_template: >-
+      {% set m = value | regex_findall('temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  - platform: snmp
+    name: "PFV subopi-dev-3 temperature"
+    host: subopi-dev-3.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_subopi_dev_3_temperature
+    value_template: >-
+      {% set m = value | regex_findall('temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+
+  - platform: snmp
+    name: "PFV subopi-dev-4 temperature"
+    host: subopi-dev-4.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    device_class: temperature
+    state_class: measurement
+    unit_of_measurement: "°F"
+    unique_id: pfv_subopi_dev_4_temperature
+    value_template: >-
+      {% set m = value | regex_findall('temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ ((m | first | float * 9 / 5) + 32) | round(1) if m else 'unknown' }}
+