diff --git a/.github/workflows/build-isos.yml b/.github/workflows/build-isos.yml
index 8784ee712..3515b2cbf 100644
--- a/.github/workflows/build-isos.yml
+++ b/.github/workflows/build-isos.yml
@@ -38,9 +38,6 @@ jobs:
           StrictHostKeyChecking no
           EOF
 
-      - name: Install Just
-        uses: extractions/setup-just@v2
-
       - name: Install Lix
         uses: DeterminateSystems/nix-installer-action@main
         with:
@@ -53,17 +50,12 @@ jobs:
 
       - name: Build Lilith Iso
         continue-on-error: false
-        run: just iso lilith
-
-      - name: Build Valkyrie Tarball
-        continue-on-error: false
-        run: just tar valkyrie
+        run: nix build -L .#nixosConfigurations.lilith.config.system.build.isoImage
 
       - name: Upload Release Artifacts
         run: |
           release=$(date +"%Y-%m-%d")
           gh release create "$release"
           gh release upload "$release" ./result/iso/*.iso
-          gh release upload "$release" nixos-wsl.tar.gz
         env:
           GH_TOKEN: ${{ github.token }}