diff --git a/admin-system/renovate.yaml b/admin-system/renovate.yaml
index 63bd52d..2a4f1ae 100644
--- a/admin-system/renovate.yaml
+++ b/admin-system/renovate.yaml
@@ -46,10 +46,24 @@ data:
       "dependencyDashboardTitle": "Renovate Dependency Dashboard",
       "prHourlyLimit": 16,
       "prConcurrentLimit": 16,
-      "enabledManagers": ["kubernetes", "helm-values"],
+      "enabledManagers": ["kubernetes", "helm-values", "custom.regex"],
       "kubernetes": {
         "managerFilePatterns": ["/.+\\.ya?ml$/"]
       },
+      "customManagers": [
+        {
+          "description": "termix uses a release-X.Y.Z prefixed tag that the kubernetes manager's docker-versioning pre-check rejects (so no PRs are ever created). This customManager extracts the image directly, redirects the version lookup to GitHub Releases at Termix-SSH/Termix (which exposes timestamps the 3-day stability gate needs), and uses extractVersion to strip the `release-` prefix so loose semver can parse it.",
+          "customType": "regex",
+          "managerFilePatterns": ["/termix-system/.+\\.ya?ml$/"],
+          "matchStrings": [
+            "image:\\s+(?<depName>ghcr\\.io/lukegus/termix):(?<currentValue>release-\\d+\\.\\d+\\.\\d+)"
+          ],
+          "datasourceTemplate": "github-releases",
+          "packageNameTemplate": "Termix-SSH/Termix",
+          "versioningTemplate": "loose",
+          "extractVersionTemplate": "^release-(?<version>.+)$"
+        }
+      ],
       "packageRules": [
         {
           "description": "All apps: 3-day stability gate before any PR opens",
@@ -94,6 +108,12 @@ data:
           "description": "wanderer: db + web update together in one PR",
           "matchPackageNames": ["flomp/wanderer-db", "flomp/wanderer-web"],
           "groupName": "wanderer"
+        },
+        {
+          "description": "termix: kubernetes manager would extract the image with versioning=docker and silently skip it (release-1.11.0 fails the docker pre-check). Disable that extraction; customManagers above does the real work via github-releases.",
+          "matchManagers": ["kubernetes"],
+          "matchPackageNames": ["ghcr.io/lukegus/termix"],
+          "enabled": false
         }
       ],
       "labels": ["renovate"]
diff --git a/termix-system/termix.yaml b/termix-system/termix.yaml
index 8852669..5f56cfc 100644
--- a/termix-system/termix.yaml
+++ b/termix-system/termix.yaml
@@ -41,7 +41,10 @@ spec:
     spec:
       containers:
         - name: termix
-          # renovate: datasource=github-releases depName=Termix-SSH/Termix versioning=loose extractVersion=^release-(?<version>.+)$
+          # NOTE: termix uses a non-semver tag pattern (release-X.Y.Z).
+          # Renovate handles it via a customManagers regex defined in
+          # admin-system/renovate.yaml (the kubernetes manager doesn't
+          # process inline `# renovate:` comments).
           image: ghcr.io/lukegus/termix:release-1.11.0
           imagePullPolicy: IfNotPresent
           ports: