diff --git a/system/bitcoin/liquidd.nix b/system/bitcoin/liquidd.nix
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+++ b/system/bitcoin/liquidd.nix
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+  ### LIQUIDD
+  # Enable this module to use Liquid, a sidechain for an inter-exchange
+  # settlement network linking together cryptocurrency exchanges and
+  # institutions around the world.
+  { services.liquidd.enable = true; }
+  #
+  # Liquid can be controlled with command 'elements-cli'.