diff --git a/templates/supportedChains.ts b/templates/supportedChains.ts
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--- /dev/null
+++ b/templates/supportedChains.ts
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+/*
+ * The supported chains.
+ * By default, there are only two chains here:
+ *
+ * - mudFoundry, the chain running on anvil that pnpm dev
+ *   starts by default. It is similar to the viem anvil chain
+ *   (see https://viem.sh/docs/clients/test.html), but with the
+ *   basefee set to zero to avoid transaction fees.
+ * - latticeTestnet, our public test network.
+ *
+ */
+
+import { MUDChain, latticeTestnet, mudFoundry, redstone, garnet } from "@latticexyz/common/chains";
+
+/*
+ * See https://mud.dev/tutorials/minimal/deploy#run-the-user-interface
+ * for instructions on how to add networks.
+ */
+export const supportedChains: MUDChain[] = [mudFoundry, latticeTestnet, redstone, garnet];