diff --git a/docs/unlocking-zfs-pool.md b/docs/unlocking-zfs-pool.md
index 686f140c..5b5d4ea2 100644
--- a/docs/unlocking-zfs-pool.md
+++ b/docs/unlocking-zfs-pool.md
@@ -6,13 +6,13 @@ accessing the server via SSH as user `root` on port 2222.
 Nachtigall:
 
 ```
-ssh root@nachtigall.pub.solar -p2222
+ssh -4 root@nachtigall.pub.solar -p2222
 ```
 
 Metronom:
 
 ```
-ssh root@metronom.pub.solar -p2222
+ssh -4 root@metronom.pub.solar -p2222
 ```
 
 After connecting, paste the encryption passphrase you can find in the shared
diff --git a/flake.lock b/flake.lock
index 84e3884a..8f2c0474 100644
--- a/flake.lock
+++ b/flake.lock
@@ -147,11 +147,11 @@
     "flake-compat_2": {
       "flake": false,
       "locked": {
-        "lastModified": 1668681692,
-        "narHash": "sha256-Ht91NGdewz8IQLtWZ9LCeNXMSXHUss+9COoqu6JLmXU=",
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "009399224d5e398d03b22badca40a37ac85412a1",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
         "type": "github"
       },
       "original": {
@@ -315,11 +315,11 @@
     },
     "nixos-flake": {
       "locked": {
-        "lastModified": 1719079946,
-        "narHash": "sha256-A3JUcPH00buqBgjmi0lWUZIql9+8Y7CMSXGoUXcm+yk=",
+        "lastModified": 1719437091,
+        "narHash": "sha256-UIZasVC36DS5dli1VimK0VgL6JKuxDG9cMxKq1I6OQ0=",
         "owner": "srid",
         "repo": "nixos-flake",
-        "rev": "6335b2f05f007b95ac2438b0a55498f9f20e73f7",
+        "rev": "8cefa1e7af06d366f5d3fd7c97e9edbf4d38c476",
         "type": "github"
       },
       "original": {
@@ -330,11 +330,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1718835956,
-        "narHash": "sha256-wM9v2yIxClRYsGHut5vHICZTK7xdrUGfrLkXvSuv6s4=",
+        "lastModified": 1719426051,
+        "narHash": "sha256-yJL9VYQhaRM7xs0M867ZFxwaONB9T2Q4LnGo1WovuR4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "dd457de7e08c6d06789b1f5b88fc9327f4d96309",
+        "rev": "89c49874fb15f4124bf71ca5f42a04f2ee5825fd",
         "type": "github"
       },
       "original": {
@@ -478,6 +478,21 @@
         "type": "github"
       }
     },
+    "systems_5": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "triton-vmtools": {
       "inputs": {
         "flake-utils": "flake-utils_3",
@@ -504,11 +519,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1719075281,
-        "narHash": "sha256-CyyxvOwFf12I91PBWz43iGT1kjsf5oi6ax7CrvaMyAo=",
+        "lastModified": 1719254875,
+        "narHash": "sha256-ECni+IkwXjusHsm9Sexdtq8weAq/yUyt1TWIemXt3Ko=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a71e967ef3694799d0c418c98332f7ff4cc5f6af",
+        "rev": "2893f56de08021cffd9b6b6dfc70fd9ccd51eb60",
         "type": "github"
       },
       "original": {
@@ -537,12 +552,15 @@
       }
     },
     "utils_2": {
+      "inputs": {
+        "systems": "systems_5"
+      },
       "locked": {
-        "lastModified": 1605370193,
-        "narHash": "sha256-YyMTf3URDL/otKdKgtoMChu4vfVL3vCMkRqpGifhUn0=",
+        "lastModified": 1709126324,
+        "narHash": "sha256-q6EQdSeUZOG26WelxqkmR7kArjgWCdw5sfJVHPH/7j8=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5021eac20303a61fafe17224c087f5519baed54d",
+        "rev": "d465f4819400de7c8d874d50b982301f28a84605",
         "type": "github"
       },
       "original": {
diff --git a/modules/grafana/grafana-dashboards/node-exporter-full_rev33.json b/modules/grafana/grafana-dashboards/node-exporter-full_rev33.json
index 9df57f03..a2b7995b 100644
--- a/modules/grafana/grafana-dashboards/node-exporter-full_rev33.json
+++ b/modules/grafana/grafana-dashboards/node-exporter-full_rev33.json
@@ -1,47 +1,4 @@
 {
-  "__inputs": [
-    {
-      "name": "DS_PROMETHEUS",
-      "label": "Prometheus",
-      "description": "",
-      "type": "datasource",
-      "pluginId": "prometheus",
-      "pluginName": "Prometheus"
-    }
-  ],
-  "__elements": {},
-  "__requires": [
-    {
-      "type": "panel",
-      "id": "gauge",
-      "name": "Gauge",
-      "version": ""
-    },
-    {
-      "type": "grafana",
-      "id": "grafana",
-      "name": "Grafana",
-      "version": "9.4.3"
-    },
-    {
-      "type": "datasource",
-      "id": "prometheus",
-      "name": "Prometheus",
-      "version": "1.0.0"
-    },
-    {
-      "type": "panel",
-      "id": "stat",
-      "name": "Stat",
-      "version": ""
-    },
-    {
-      "type": "panel",
-      "id": "timeseries",
-      "name": "Time series",
-      "version": ""
-    }
-  ],
   "annotations": {
     "list": [
       {
@@ -69,7 +26,6 @@
   "fiscalYearStartMonth": 0,
   "gnetId": 1860,
   "graphTooltip": 1,
-  "id": null,
   "links": [
     {
       "icon": "external link",
@@ -171,6 +127,8 @@
       "id": 20,
       "links": [],
       "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
         "orientation": "horizontal",
         "reduceOptions": {
           "calcs": ["lastNotNull"],
@@ -178,9 +136,10 @@
           "values": false
         },
         "showThresholdLabels": false,
-        "showThresholdMarkers": true
+        "showThresholdMarkers": true,
+        "sizing": "auto"
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -257,6 +216,8 @@
       "id": 155,
       "links": [],
       "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
         "orientation": "horizontal",
         "reduceOptions": {
           "calcs": ["lastNotNull"],
@@ -264,9 +225,10 @@
           "values": false
         },
         "showThresholdLabels": false,
-        "showThresholdMarkers": true
+        "showThresholdMarkers": true,
+        "sizing": "auto"
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -343,6 +305,8 @@
       "id": 19,
       "links": [],
       "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
         "orientation": "horizontal",
         "reduceOptions": {
           "calcs": ["lastNotNull"],
@@ -350,9 +314,10 @@
           "values": false
         },
         "showThresholdLabels": false,
-        "showThresholdMarkers": true
+        "showThresholdMarkers": true,
+        "sizing": "auto"
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -419,6 +384,8 @@
       "id": 16,
       "links": [],
       "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
         "orientation": "horizontal",
         "reduceOptions": {
           "calcs": ["lastNotNull"],
@@ -426,9 +393,10 @@
           "values": false
         },
         "showThresholdLabels": false,
-        "showThresholdMarkers": true
+        "showThresholdMarkers": true,
+        "sizing": "auto"
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -521,6 +489,8 @@
       "id": 21,
       "links": [],
       "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
         "orientation": "horizontal",
         "reduceOptions": {
           "calcs": ["lastNotNull"],
@@ -528,9 +498,10 @@
           "values": false
         },
         "showThresholdLabels": false,
-        "showThresholdMarkers": true
+        "showThresholdMarkers": true,
+        "sizing": "auto"
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -605,6 +576,8 @@
       "id": 154,
       "links": [],
       "options": {
+        "minVizHeight": 75,
+        "minVizWidth": 75,
         "orientation": "horizontal",
         "reduceOptions": {
           "calcs": ["lastNotNull"],
@@ -612,9 +585,10 @@
           "values": false
         },
         "showThresholdLabels": false,
-        "showThresholdMarkers": true
+        "showThresholdMarkers": true,
+        "sizing": "auto"
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -693,9 +667,10 @@
           "fields": "",
           "values": false
         },
-        "textMode": "auto"
+        "textMode": "auto",
+        "wideLayout": true
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -772,9 +747,10 @@
           "fields": "",
           "values": false
         },
-        "textMode": "auto"
+        "textMode": "auto",
+        "wideLayout": true
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -857,9 +833,10 @@
           "fields": "",
           "values": false
         },
-        "textMode": "auto"
+        "textMode": "auto",
+        "wideLayout": true
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -940,9 +917,10 @@
           "fields": "",
           "values": false
         },
-        "textMode": "auto"
+        "textMode": "auto",
+        "wideLayout": true
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -1021,9 +999,10 @@
           "fields": "",
           "values": false
         },
-        "textMode": "auto"
+        "textMode": "auto",
+        "wideLayout": true
       },
-      "pluginVersion": "9.4.3",
+      "pluginVersion": "10.2.7",
       "targets": [
         {
           "datasource": {
@@ -1081,6 +1060,7 @@
             "mode": "palette-classic"
           },
           "custom": {
+            "axisBorderShow": false,
             "axisCenteredZero": false,
             "axisColorMode": "text",
             "axisLabel": "",
@@ -1094,6 +1074,7 @@
               "tooltip": false,
               "viz": false
             },
+            "insertNulls": false,
             "lineInterpolation": "smooth",
             "lineWidth": 1,
             "pointSize": 5,
@@ -1361,6 +1342,7 @@
             "mode": "palette-classic"
           },
           "custom": {
+            "axisBorderShow": false,
             "axisCenteredZero": false,
             "axisColorMode": "text",
             "axisLabel": "",
@@ -1374,6 +1356,7 @@
               "tooltip": false,
               "viz": false
             },
+            "insertNulls": false,
             "lineInterpolation": "linear",
             "lineWidth": 1,
             "pointSize": 5,
@@ -1879,6 +1862,7 @@
             "mode": "palette-classic"
           },
           "custom": {
+            "axisBorderShow": false,
             "axisCenteredZero": false,
             "axisColorMode": "text",
             "axisLabel": "",
@@ -1892,6 +1876,7 @@
               "tooltip": false,
               "viz": false
             },
+            "insertNulls": false,
             "lineInterpolation": "linear",
             "lineWidth": 1,
             "pointSize": 5,
@@ -2347,6 +2332,7 @@
             "mode": "palette-classic"
           },
           "custom": {
+            "axisBorderShow": false,
             "axisCenteredZero": false,
             "axisColorMode": "text",
             "axisLabel": "",
@@ -2360,6 +2346,7 @@
               "tooltip": false,
               "viz": false
             },
+            "insertNulls": false,
             "lineInterpolation": "linear",
             "lineWidth": 1,
             "pointSize": 5,
@@ -13021,8 +13008,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -13226,8 +13212,7 @@
                 "mode": "absolute",
                 "steps": [
                   {
-                    "color": "green",
-                    "value": null
+                    "color": "green"
                   },
                   {
                     "color": "red",
@@ -23154,8 +23139,7 @@
   ],
   "refresh": "",
   "revision": 1,
-  "schemaVersion": 38,
-  "style": "dark",
+  "schemaVersion": 39,
   "tags": ["linux"],
   "templating": {
     "list": [
@@ -23178,7 +23162,11 @@
         "type": "datasource"
       },
       {
-        "current": {},
+        "current": {
+          "selected": false,
+          "text": "node-exporter",
+          "value": "node-exporter"
+        },
         "datasource": {
           "type": "prometheus",
           "uid": "${DS_PROMETHEUS}"
@@ -23204,7 +23192,11 @@
         "useTags": false
       },
       {
-        "current": {},
+        "current": {
+          "selected": true,
+          "text": "nachtigall",
+          "value": "nachtigall"
+        },
         "datasource": {
           "type": "prometheus",
           "uid": "${DS_PROMETHEUS}"
@@ -23274,6 +23266,6 @@
   "timezone": "browser",
   "title": "Node Exporter Full",
   "uid": "rYdddlPWk",
-  "version": 87,
+  "version": 2,
   "weekStart": ""
 }