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-rw-r--r--third_party/overlays/tvl.nix5
1 files changed, 5 insertions, 0 deletions
diff --git a/third_party/overlays/tvl.nix b/third_party/overlays/tvl.nix
index 3e9607984ef3..09e85617d4fa 100644
--- a/third_party/overlays/tvl.nix
+++ b/third_party/overlays/tvl.nix
@@ -59,4 +59,9 @@ self: super: {
   # nix-serve does not work with nix 2.4
   # https://github.com/edolstra/nix-serve/issues/28
   nix-serve = super.nix-serve.override { nix = super.nix_2_3; };
+
+  # Avoid builds of mkShell derivations in CI.
+  mkShell = super.lib.makeOverridable(args: (super.mkShell args) // {
+    meta.ci = false;
+  });
 }