diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ee27ed04..a51dc74c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,6 +32,35 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
+      - name: Scrounge-up some more space
+        uses: samueldr/more-space-action@v2025-01-24.pre
+        with:
+          enable-lvm-span: true
+          lvm-span-mountpoint: /nix
+
+      - name: Set Nix store ownership
+        run: |
+          sudo chown root:root /nix
+
+      - name: Override lix-daemon build directory
+        run: |
+          (
+          PS4=" $ "
+          set -eux -o pipefail
+
+          sudo mkdir -p /nix/tmp
+          sudo chmod ug=rwx,o=rwxt /nix/tmp
+
+          sudo mkdir -p /etc/systemd/system/lix-daemon.service.d
+          sudo tee /etc/systemd/system/lix-daemon.service.d/override.conf >/dev/null <<EOF
+          [Service]
+          Environment=TMPDIR=/lix/tmp
+          EOF
+
+          sudo systemctl daemon-reload
+          sudo systemctl restart lix-daemon
+          )
+
       - name: Install Lix
         uses: samueldr/lix-gha-installer-action@v1