diff --git a/.github/workflows/installers.yml b/.github/workflows/installers.yml
index 0c2873cf31..805f1917aa 100644
--- a/.github/workflows/installers.yml
+++ b/.github/workflows/installers.yml
@@ -93,7 +93,7 @@ jobs:
       enterprise: ${{ github.event.inputs.enterprise == 'true' }}
       staging: ${{ github.event.inputs.staging == 'true' }}
       architecture: X64
-      operating_system: ubuntu-22.04
+      operating_system: self-hosted-Ubuntu22-X64
     secrets: inherit
 
   macos-installer:
diff --git a/resources/definitions/fdmprinter.def.json b/resources/definitions/fdmprinter.def.json
index d12823e020..f367824ec2 100644
--- a/resources/definitions/fdmprinter.def.json
+++ b/resources/definitions/fdmprinter.def.json
@@ -1342,6 +1342,15 @@
                     "limit_to_extruder": "wall_0_extruder_nr",
                     "settable_per_mesh": true
                 },
+                "z_seam_on_vertex":
+                {
+                    "label": "Z Seam On Vertex",
+                    "description": "Place the z-seam on a polygon vertex. Switching this off can place the seam between vertices as well. (Keep in mind that this won't override the restrictions on placing the seam on an unsupported overhang.)",
+                    "type": "bool",
+                    "default_value": true,
+                    "settable_per_mesh": true,
+                    "enabled": "z_seam_type == 'back' or z_seam_type == 'shortest'"
+                },
                 "z_seam_position":
                 {
                     "label": "Z Seam Position",
diff --git a/resources/setting_visibility/expert.cfg b/resources/setting_visibility/expert.cfg
index 5257da75e8..888b0a797f 100644
--- a/resources/setting_visibility/expert.cfg
+++ b/resources/setting_visibility/expert.cfg
@@ -41,6 +41,7 @@ xy_offset_layer_0
 hole_xy_offset
 hole_xy_offset_max_diameter
 z_seam_type
+z_seam_on_vertex
 z_seam_position
 z_seam_x
 z_seam_y