diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2646469..69e19ee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,6 +5,7 @@ on:
     branches: [main]
   pull_request:
     branches: [main]
+  workflow_dispatch:
 
 jobs:
   build:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b7e6750..38c8648 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,6 +12,9 @@ on:
 
 jobs:
   build-installer:
+    # Gitea reads .github/workflows/ for compatibility, but the create-release
+    # step uses a GitHub-only action. Skip the whole job on non-GitHub runners.
+    if: github.server_url == 'https://github.com'
     runs-on: windows-latest
     permissions:
       contents: write   # needed to create releases / upload assets
diff --git a/.github/workflows/wiki-sync.yml b/.github/workflows/wiki-sync.yml
index 349fefa..289eee8 100644
--- a/.github/workflows/wiki-sync.yml
+++ b/.github/workflows/wiki-sync.yml
@@ -11,6 +11,10 @@ on:
 
 jobs:
   sync:
+    # Gitea reads .github/workflows/ for compatibility, but this workflow
+    # pushes to a GitHub-hosted wiki. Skip on non-GitHub runners; the Gitea
+    # wiki is synced separately via scripts/sync-wiki.ps1.
+    if: github.server_url == 'https://github.com'
     runs-on: windows-latest
     permissions:
       contents: write