diff --git a/systems/jeeves/monitoring/README.md b/systems/jeeves/monitoring/README.md
new file mode 100644
index 0000000..56df1fe
--- /dev/null
+++ b/systems/jeeves/monitoring/README.md
@@ -0,0 +1,33 @@
+# Monitoring
+
+## Vultr API metrics
+
+The `vultr-exporter` service reads its API token from:
+
+```text
+/zfs/storage/secrets/services/vultr-exporter
+```
+
+Create the file on Jeeves as root with the following contents:
+
+```text
+API_KEY=<Vultr API token>
+```
+
+The token needs read access to the Vultr Account and Billing APIs. Unrelated
+resource collectors are disabled in the packaged exporter.
+
+Restrict the file to root and ensure the public egress IP used by Jeeves is
+allowed for the token in the Vultr API settings:
+
+```console
+sudo chown root:root /zfs/storage/secrets/services/vultr-exporter
+sudo chmod 600 /zfs/storage/secrets/services/vultr-exporter
+```
+
+The exporter listens on `127.0.0.1:9188`; it is scraped by the local
+`prometheus-main` service every five minutes and is not exposed through the
+host firewall.
+
+Portal-1 exposes its node exporter only through `tailscale0` on port `9100`.
+Jeeves reaches it using the Portal-1 Tailscale hostname.
diff --git a/systems/jeeves/monitoring/dashboards/portal-1.json b/systems/jeeves/monitoring/dashboards/portal-1.json
new file mode 100644
index 0000000..278a4f7
--- /dev/null
+++ b/systems/jeeves/monitoring/dashboards/portal-1.json
@@ -0,0 +1,798 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "grafana",
+          "uid": "-- Grafana --"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": false,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 1,
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "short",
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "red",
+                "value": null
+              },
+              {
+                "color": "green",
+                "value": 1
+              }
+            ]
+          },
+          "mappings": [
+            {
+              "options": {
+                "0": {
+                  "color": "red",
+                  "index": 1,
+                  "text": "Offline"
+                },
+                "1": {
+                  "color": "green",
+                  "index": 0,
+                  "text": "Online"
+                }
+              },
+              "type": "value"
+            }
+          ]
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 5,
+        "w": 4,
+        "x": 0,
+        "y": 0
+      },
+      "id": 1,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto",
+        "wideLayout": true
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "up{job=\"node\",instance=\"portal-1\"}",
+          "instant": true,
+          "legendFormat": "",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "Node Exporter",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "yellow",
+                "value": 70
+              },
+              {
+                "color": "red",
+                "value": 90
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 5,
+        "w": 5,
+        "x": 4,
+        "y": 0
+      },
+      "id": 2,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto",
+        "wideLayout": true
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "100 * (1 - avg(rate(node_cpu_seconds_total{job=\"node\",instance=\"portal-1\",mode=\"idle\"}[5m])))",
+          "instant": true,
+          "legendFormat": "",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "CPU Used",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "yellow",
+                "value": 70
+              },
+              {
+                "color": "red",
+                "value": 90
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 5,
+        "w": 5,
+        "x": 9,
+        "y": 0
+      },
+      "id": 3,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto",
+        "wideLayout": true
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "100 * (1 - (node_memory_MemAvailable_bytes{job=\"node\",instance=\"portal-1\"} / node_memory_MemTotal_bytes{job=\"node\",instance=\"portal-1\"}))",
+          "instant": true,
+          "legendFormat": "",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "RAM Used",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "yellow",
+                "value": 70
+              },
+              {
+                "color": "red",
+                "value": 90
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 5,
+        "w": 5,
+        "x": 14,
+        "y": 0
+      },
+      "id": 4,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto",
+        "wideLayout": true
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "100 * (1 - (node_filesystem_avail_bytes{job=\"node\",instance=\"portal-1\",mountpoint=\"/\",fstype!=\"\"} / node_filesystem_size_bytes{job=\"node\",instance=\"portal-1\",mountpoint=\"/\",fstype!=\"\"}))",
+          "instant": true,
+          "legendFormat": "",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "Root Filesystem Used",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "short"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 5,
+        "w": 5,
+        "x": 19,
+        "y": 0
+      },
+      "id": 5,
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "auto",
+        "orientation": "auto",
+        "reduceOptions": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "fields": "",
+          "values": false
+        },
+        "textMode": "auto",
+        "wideLayout": true
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "node_load1{job=\"node\",instance=\"portal-1\"}",
+          "instant": true,
+          "legendFormat": "",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "Load (1m)",
+      "type": "stat"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "yellow",
+                "value": 70
+              },
+              {
+                "color": "red",
+                "value": 90
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 5
+      },
+      "id": 6,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "100 * (1 - avg(rate(node_cpu_seconds_total{job=\"node\",instance=\"portal-1\",mode=\"idle\"}[5m])))",
+          "instant": false,
+          "legendFormat": "CPU used",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "CPU Usage",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "yellow",
+                "value": 70
+              },
+              {
+                "color": "red",
+                "value": 90
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 5
+      },
+      "id": 7,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "100 * (1 - (node_memory_MemAvailable_bytes{job=\"node\",instance=\"portal-1\"} / node_memory_MemTotal_bytes{job=\"node\",instance=\"portal-1\"}))",
+          "instant": false,
+          "legendFormat": "RAM used",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "RAM Usage",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "percent",
+          "min": 0,
+          "max": 100,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "yellow",
+                "value": 70
+              },
+              {
+                "color": "red",
+                "value": 90
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 13
+      },
+      "id": 8,
+      "options": {
+        "cellHeight": "sm",
+        "showHeader": true,
+        "sortBy": [
+          {
+            "desc": true,
+            "displayName": "Value"
+          }
+        ]
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "100 * (1 - (node_filesystem_avail_bytes{job=\"node\",instance=\"portal-1\",fstype!~\"tmpfs|devtmpfs|overlay|squashfs\",mountpoint!~\"/run.*\"} / node_filesystem_size_bytes{job=\"node\",instance=\"portal-1\",fstype!~\"tmpfs|devtmpfs|overlay|squashfs\",mountpoint!~\"/run.*\"}))",
+          "format": "table",
+          "instant": true,
+          "legendFormat": "{{mountpoint}}",
+          "range": false,
+          "refId": "A"
+        }
+      ],
+      "title": "Filesystem Usage",
+      "type": "table"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "Bps"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 13
+      },
+      "id": 9,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(node_disk_read_bytes_total{job=\"node\",instance=\"portal-1\",device!~\"loop.*|ram.*|fd.*\"}[5m]))",
+          "instant": false,
+          "legendFormat": "read",
+          "range": true,
+          "refId": "A"
+        },
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(node_disk_written_bytes_total{job=\"node\",instance=\"portal-1\",device!~\"loop.*|ram.*|fd.*\"}[5m]))",
+          "instant": false,
+          "legendFormat": "write",
+          "range": true,
+          "refId": "B"
+        }
+      ],
+      "title": "Disk Throughput",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "iops"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 21
+      },
+      "id": 10,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(node_disk_reads_completed_total{job=\"node\",instance=\"portal-1\",device!~\"loop.*|ram.*|fd.*\"}[5m]))",
+          "instant": false,
+          "legendFormat": "reads",
+          "range": true,
+          "refId": "A"
+        },
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(node_disk_writes_completed_total{job=\"node\",instance=\"portal-1\",device!~\"loop.*|ram.*|fd.*\"}[5m]))",
+          "instant": false,
+          "legendFormat": "writes",
+          "range": true,
+          "refId": "B"
+        }
+      ],
+      "title": "Disk Operations",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "Bps"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 21
+      },
+      "id": 11,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(node_network_receive_bytes_total{job=\"node\",instance=\"portal-1\",device!=\"lo\"}[5m]))",
+          "instant": false,
+          "legendFormat": "received",
+          "range": true,
+          "refId": "A"
+        },
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(rate(node_network_transmit_bytes_total{job=\"node\",instance=\"portal-1\",device!=\"lo\"}[5m]))",
+          "instant": false,
+          "legendFormat": "sent",
+          "range": true,
+          "refId": "B"
+        }
+      ],
+      "title": "Network Traffic",
+      "type": "timeseries"
+    }
+  ],
+  "refresh": "30s",
+  "schemaVersion": 39,
+  "tags": [
+    "monitoring",
+    "portal-1",
+    "vultr"
+  ],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-24h",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "Portal-1 Host",
+  "uid": "portal-1-host",
+  "version": 1,
+  "weekStart": ""
+}
diff --git a/systems/jeeves/monitoring/dashboards/vultr-infrastructure.json b/systems/jeeves/monitoring/dashboards/vultr-infrastructure.json
new file mode 100644
index 0000000..b979d18
--- /dev/null
+++ b/systems/jeeves/monitoring/dashboards/vultr-infrastructure.json
@@ -0,0 +1,1053 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": {
+          "type": "grafana",
+          "uid": "-- Grafana --"
+        },
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": false,
+  "fiscalYearStartMonth": 0,
+  "graphTooltip": 1,
+  "links": [],
+  "panels": [
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
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+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "vultr_account_bandwidth_value{period=\"current\",type=\"total_instance_count\"}",
+          "instant": false,
+          "legendFormat": "VMs",
+          "range": true,
+          "refId": "A"
+        }
+      ],
+      "title": "VM Count History",
+      "type": "timeseries"
+    },
+    {
+      "datasource": {
+        "type": "prometheus",
+        "uid": "prom-main"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "color": {
+            "mode": "palette-classic"
+          },
+          "unit": "currencyUSD"
+        },
+        "overrides": []
+      },
+      "gridPos": {
+        "h": 7,
+        "w": 12,
+        "x": 12,
+        "y": 26
+      },
+      "id": 16,
+      "options": {
+        "legend": {
+          "calcs": [
+            "lastNotNull"
+          ],
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": true
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "desc"
+        }
+      },
+      "targets": [
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "vultr_account_pending_charges",
+          "instant": false,
+          "legendFormat": "pending charges",
+          "range": true,
+          "refId": "A"
+        },
+        {
+          "datasource": {
+            "type": "prometheus",
+            "uid": "prom-main"
+          },
+          "editorMode": "code",
+          "expr": "sum(vultr_billing_cost_usd)",
+          "instant": false,
+          "legendFormat": "itemized cost",
+          "range": true,
+          "refId": "B"
+        }
+      ],
+      "title": "Account Charges",
+      "type": "timeseries"
+    }
+  ],
+  "refresh": "5m",
+  "schemaVersion": 39,
+  "tags": [
+    "monitoring",
+    "vultr",
+    "billing"
+  ],
+  "templating": {
+    "list": []
+  },
+  "time": {
+    "from": "now-30d",
+    "to": "now"
+  },
+  "timepicker": {},
+  "timezone": "browser",
+  "title": "Vultr Infrastructure",
+  "uid": "vultr-infrastructure",
+  "version": 1,
+  "weekStart": ""
+}
diff --git a/systems/jeeves/monitoring/default.nix b/systems/jeeves/monitoring/default.nix
index acc91ec..3d886a2 100644
--- a/systems/jeeves/monitoring/default.nix
+++ b/systems/jeeves/monitoring/default.nix
@@ -43,8 +43,15 @@ let
         static_configs = [
           (mkTarget "jeeves" "jeeves.taile39c31.ts.net:9100")
           (mkTarget "bob" "bob.taile39c31.ts.net:9100")
+          (mkTarget "portal-1" "portal-1.taile39c31.ts.net:9100")
         ];
       }
+      {
+        job_name = "vultr";
+        scrape_interval = "5m";
+        scrape_timeout = "45s";
+        static_configs = [ (mkTarget "vultr" "127.0.0.1:9188") ];
+      }
       {
         job_name = "process_grouped";
         static_configs = [
@@ -153,6 +160,8 @@ let
     };
 in
 {
+  imports = [ ./vultr-exporter.nix ];
+
   users = {
     groups.prometheus = { };
     users.prometheus = {
diff --git a/systems/jeeves/monitoring/vultr-exporter.nix b/systems/jeeves/monitoring/vultr-exporter.nix
new file mode 100644
index 0000000..37941a3
--- /dev/null
+++ b/systems/jeeves/monitoring/vultr-exporter.nix
@@ -0,0 +1,96 @@
+{
+  lib,
+  pkgs,
+  ...
+}:
+let
+  vars = import ../vars.nix;
+
+  vultrExporter = pkgs.buildGoModule rec {
+    pname = "vultr-exporter";
+    version = "0-unstable-2025-10-14";
+
+    src = pkgs.fetchFromGitHub {
+      owner = "DazWilkin";
+      repo = "vultr-exporter";
+      rev = "d8b5d7107c2eda31566e6e895c8a67db32fdaf68";
+      hash = "sha256-3LpXh+mFMBRJfiY2ftELpM3AIE0LiZ9c6NFok0OeH5I=";
+    };
+
+    vendorHash = "sha256-qCHWmg6GxLIjqlf5UqRcuDRd1xqRFI3sl4ZduLajx+Y=";
+    subPackages = [ "cmd/server" ];
+
+    postPatch = ''
+      substituteInPlace cmd/server/main.go \
+        --replace-fail 'registry.MustRegister(collector.NewBlockStorageCollector(s, client, log))' "" \
+        --replace-fail 'registry.MustRegister(collector.NewKubernetesCollector(s, client, log))' "" \
+        --replace-fail 'registry.MustRegister(collector.NewLoadBalancerCollector(s, client, log))' "" \
+        --replace-fail 'registry.MustRegister(collector.NewReservedIPsCollector(s, client, log))' ""
+    '';
+
+    ldflags = [
+      "-s"
+      "-w"
+      "-X main.GitCommit=${src.rev}"
+      "-X main.OSVersion=NixOS"
+    ];
+
+    postInstall = ''
+      mv $out/bin/server $out/bin/vultr-exporter
+    '';
+
+    meta = {
+      description = "Prometheus exporter for Vultr account, billing, and bandwidth metrics";
+      homepage = "https://github.com/DazWilkin/vultr-exporter";
+      license = lib.licenses.asl20;
+      mainProgram = "vultr-exporter";
+    };
+  };
+in
+{
+  systemd.services.vultr-exporter = {
+    description = "Vultr Prometheus exporter";
+    documentation = [ "https://github.com/DazWilkin/vultr-exporter" ];
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+    wantedBy = [ "multi-user.target" ];
+
+    serviceConfig = {
+      ExecStart = "${lib.getExe vultrExporter} --endpoint=127.0.0.1:9188 --path=/metrics";
+      EnvironmentFile = "${vars.secrets}/services/vultr-exporter";
+      Restart = "on-failure";
+      RestartSec = "30s";
+
+      CapabilityBoundingSet = [ "" ];
+      DeviceAllow = [ "" ];
+      DynamicUser = true;
+      LockPersonality = true;
+      MemoryDenyWriteExecute = true;
+      NoNewPrivileges = true;
+      PrivateDevices = true;
+      PrivateTmp = true;
+      ProtectClock = true;
+      ProtectControlGroups = true;
+      ProtectHome = true;
+      ProtectHostname = true;
+      ProtectKernelLogs = true;
+      ProtectKernelModules = true;
+      ProtectKernelTunables = true;
+      ProtectSystem = "strict";
+      RemoveIPC = true;
+      RestrictAddressFamilies = [
+        "AF_INET"
+        "AF_INET6"
+      ];
+      RestrictNamespaces = true;
+      RestrictRealtime = true;
+      RestrictSUIDSGID = true;
+      SystemCallArchitectures = "native";
+      SystemCallFilter = [
+        "@system-service"
+        "~@privileged"
+      ];
+      UMask = "0077";
+    };
+  };
+}
diff --git a/systems/portal-1/default.nix b/systems/portal-1/default.nix
index 4bf111e..1d96af5 100644
--- a/systems/portal-1/default.nix
+++ b/systems/portal-1/default.nix
@@ -12,6 +12,7 @@
     "${inputs.self}/common/optional/tailscale.nix"
     ./disk-config.nix
     ./haproxy
+    ./monitoring.nix
   ];
 
   nixpkgs.hostPlatform = "x86_64-linux";
diff --git a/systems/portal-1/monitoring.nix b/systems/portal-1/monitoring.nix
new file mode 100644
index 0000000..133b140
--- /dev/null
+++ b/systems/portal-1/monitoring.nix
@@ -0,0 +1,15 @@
+{ config, ... }:
+{
+  networking.firewall.interfaces.tailscale0.allowedTCPPorts = [
+    config.services.prometheus.exporters.node.port
+  ];
+
+  services.prometheus.exporters.node = {
+    enable = true;
+    enabledCollectors = [
+      "pressure"
+      "processes"
+      "systemd"
+    ];
+  };
+}