diff --git a/.gitea/workflows/build-topology-graph.yml b/.gitea/workflows/build-topology-graph.yml
index e4eba5c..43746a7 100644
--- a/.gitea/workflows/build-topology-graph.yml
+++ b/.gitea/workflows/build-topology-graph.yml
@@ -13,13 +13,6 @@ jobs:
     - uses: actions/checkout@v6
 
     - uses: https://github.com/cachix/install-nix-action@v31
-      with:
-        extra_nix_config: |
-          show-trace = true
-          max-jobs = auto
-          trusted-users = root
-          experimental-features = nix-command flakes
-          build-users-group =
 
     - name: Build topology graph
       run: nix build .#topology -L
diff --git a/.gitea/workflows/eval.yml b/.gitea/workflows/eval.yml
index f4f204c..fcb2a8e 100644
--- a/.gitea/workflows/eval.yml
+++ b/.gitea/workflows/eval.yml
@@ -12,12 +12,5 @@ jobs:
     - uses: actions/checkout@v6
 
     - uses: https://github.com/cachix/install-nix-action@v31
-      with:
-        extra_nix_config: |
-          show-trace = true
-          max-jobs = auto
-          trusted-users = root
-          experimental-features = nix-command flakes
-          build-users-group =
 
     - run: nix flake check