diff --git a/examples/package.json b/examples/package.json
index 9c658c9a0a..1ca13b5b2d 100644
--- a/examples/package.json
+++ b/examples/package.json
@@ -34,6 +34,7 @@
   },
   "sideEffects": false,
   "scripts": {
+    "testing":"tsx src/testing.ts",
     "tb": "tsx src/tokenBridge.ts",
     "cctp": "tsx src/cctp.ts",
     "demo": "tsx src/index.ts",
diff --git a/examples/src/testing.ts b/examples/src/testing.ts
new file mode 100644
index 0000000000..297318281d
--- /dev/null
+++ b/examples/src/testing.ts
@@ -0,0 +1,42 @@
+import { CONFIG, ChainConfig, ChainContext, ChainName, PlatformName, Wormhole, WormholeConfig, normalizeAmount } from "@wormhole-foundation/connect-sdk";
+import { EvmPlatform } from "@wormhole-foundation/connect-sdk-evm";
+import { SolanaPlatform } from "@wormhole-foundation/connect-sdk-solana";
+
+
+function overrideChainSetting(conf: WormholeConfig, chain: ChainName, setting: keyof ChainConfig, value: any): WormholeConfig {
+    // @ts-ignore
+    conf.chains[chain] = { ...conf.chains[chain], [setting]: value }
+    return conf
+}
+
+async function getNative(chain: ChainContext<PlatformName>): Promise<string> {
+    try {
+        const tb = await chain.getTokenBridge()
+        const addy = await tb.getWrappedNative()
+        return addy.toString()
+    } catch (e) {
+        console.error("Could not get native for: ", chain.chain)
+        console.error(e)
+    }
+    return ""
+}
+
+(async function () {
+    const network = "Devnet"
+
+    let cnf: WormholeConfig = CONFIG[network]
+    cnf = overrideChainSetting(cnf, "Ethereum", "rpc", "http://localhost:8545")
+    cnf = overrideChainSetting(cnf, "Bsc", "rpc", "http://localhost:8546")
+    cnf = overrideChainSetting(cnf, "Solana", "rpc", "http://localhost:8899")
+
+    const wh = new Wormhole(network, [EvmPlatform, SolanaPlatform], cnf);
+
+
+    const eth = wh.getChain("Ethereum");
+    const bsc = wh.getChain("Bsc")
+    const sol = wh.getChain("Solana")
+
+    console.log(await getNative(eth))
+    console.log(await getNative(bsc))
+    console.log(await getNative(sol))
+})();
\ No newline at end of file
diff --git a/platforms/evm/src/constants.ts b/platforms/evm/src/constants.ts
index 2b13968b57..2be5b8846a 100644
--- a/platforms/evm/src/constants.ts
+++ b/platforms/evm/src/constants.ts
@@ -55,6 +55,12 @@ const networkChainEvmCIdEntries = [
       ['Sepolia', 11155111n], //actually just another ethereum testnet...
     ],
   ],
+  [
+    "Devnet",
+    [
+      ["Bsc", 1397n]
+    ]
+  ]
 ] as const satisfies RoArray<
   readonly [Network, RoArray<readonly [PlatformToChains<'Evm'>, bigint]>]
 >;
diff --git a/platforms/solana/src/constants.ts b/platforms/solana/src/constants.ts
index a03455bb7e..605ffbe679 100644
--- a/platforms/solana/src/constants.ts
+++ b/platforms/solana/src/constants.ts
@@ -8,6 +8,7 @@ import {
 const networkChainSolanaGenesisHashes = [
   ['Mainnet', [['Solana', '5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d']]],
   ['Testnet', [['Solana', 'EtWTRABZaYq6iMfeYKouRu166VU2xqa1wcaWoxPkrZBG']]], // Note: this is referred to as `devnet` in sol
+  ['Devnet', [['Solana', 'DJFsKjBLis7jFd5QpqjV4YbmGMFGfN93e8qhhzD3tsjr']]] // Note: this is only for local testing with Tilt
 ] as const satisfies RoArray<
   readonly [Network, RoArray<readonly [ChainName, string]>]
 >;