diff --git a/flake.nix b/flake.nix
index 3610011..7ba1bc1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,6 +11,7 @@
     nixpkgs-emmett.follows = "nixpkgs";
     nixpkgs-howard.follows = "nixpkgs";
     nixpkgs-mermaid.follows = "nixpkgs";
+    nixpkgs-mermaid-gpu.follows = "nixpkgs";
     nixpkgs-micron.follows = "nixpkgs";
 
     # Project builds (local dev; follow default unless overridden)
@@ -29,6 +30,7 @@
       nixpkgs-emmett,
       nixpkgs-howard,
       nixpkgs-mermaid,
+      nixpkgs-mermaid-gpu,
       nixpkgs-micron,
       nixpkgs-projects,
       nixpkgs-ci,