diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index a3de381b..b6883d25 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -1,5 +1,5 @@
 # vim: tabstop=2 shiftwidth=2
-name: Build EDMC for Windows
+name: Build EDMC
 
 on:
   push:
@@ -11,7 +11,7 @@ jobs:
   variables:
     outputs:
       sem_ver: ${{ steps.var.outputs.sem_ver }}
-      archive_exclusions: ${{ steps.var.outputs.archive_exclusions }}
+      short_sha: ${{ steps.var.outputs.short_sha }}
     runs-on: "ubuntu-latest"
     steps:
       - name: Setting global variables
@@ -20,6 +20,7 @@ jobs:
         with:
           script: |
             core.setOutput('sem_ver', '${{ github.ref_name }}'.replaceAll('Release\/', ''))
+            core.setOutput('short_sha', '${{ github.sha }}'.substring(0, 8))
 
   linux_build:
     needs: [variables]
@@ -29,6 +30,9 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: true
+      - name: Create .gitversion
+        run: |
+          echo "${{ needs.variables.outputs.short_sha }}" > .gitversion
 
       - name: Make tar archive
         run: |
@@ -40,7 +44,11 @@ jobs:
               --exclude=EDMarketConnector-release-*.* \
               --exclude=.editorconfig \
               --exclude=.flake8 \
-              --exclude=.git* \
+              --exclude=.gitattributes \
+              --exclude=.gitignore \
+              --exclude=.gitmodules \
+              --exclude=.git \
+              --exclude=.github \
               --exclude=.mypy.ini \
               --exclude=.pre-commit-config.yaml \
               --exclude=build.py \
diff --git a/config/__init__.py b/config/__init__.py
index 77b6a0f7..33d531e9 100644
--- a/config/__init__.py
+++ b/config/__init__.py
@@ -137,10 +137,16 @@ def appversion() -> semantic_version.Version:
             shorthash = gitv.read()
 
     else:
-        # Running from source
+        # Running from source. Use git rev-parse --short HEAD
+        # or fall back to .gitversion file if it exists.
+        # This is also required for the Flatpak
         shorthash = git_shorthash_from_head()
         if shorthash is None:
-            shorthash = 'UNKNOWN'
+            if pathlib.Path(sys.path[0] + "/" + GITVERSION_FILE).exists():
+                with open(pathlib.Path(sys.path[0] + "/" + GITVERSION_FILE), encoding='utf-8') as gitv:
+                    shorthash = gitv.read()
+            else:
+                shorthash = 'UNKNOWN'
 
     _cached_version = semantic_version.Version(f'{_static_appversion}+{shorthash}')
     return _cached_version