diff --git a/examples/pre/nextjs/src/app/page.tsx b/examples/pre/nextjs/src/app/page.tsx
index 79648862b..65149bd36 100644
--- a/examples/pre/nextjs/src/app/page.tsx
+++ b/examples/pre/nextjs/src/app/page.tsx
@@ -5,6 +5,7 @@ import {
   EnactedPolicy,
   getPorterUri,
   initialize,
+  PRE_DOMAIN,
   SecretKey,
   toHexString,
 } from '@nucypher/pre';
@@ -106,7 +107,7 @@ function App() {
     const policy = await alice.grant(
       provider,
       provider.getSigner(),
-      getPorterUri('tapir'), // Testnet porter
+      getPorterUri(PRE_DOMAIN.TESTNET),
       policyParams,
     );
 
diff --git a/examples/pre/nodejs/src/index.ts b/examples/pre/nodejs/src/index.ts
index 7cb42d360..5006fa65a 100644
--- a/examples/pre/nodejs/src/index.ts
+++ b/examples/pre/nodejs/src/index.ts
@@ -3,6 +3,7 @@ import {
   Bob,
   getPorterUri,
   initialize,
+  PRE_DOMAIN,
   SecretKey,
   toBytes,
 } from '@nucypher/pre';
@@ -58,7 +59,7 @@ const runExample = async () => {
     startDate: new Date(),
     endDate: new Date(Date.now() + 1000 * 60 * 60 * 24 * 30), // In 30 days,
   };
-  const porterUri = getPorterUri('tapir'); // Test network
+  const porterUri = getPorterUri(PRE_DOMAIN.TESTNET);
   const alice = makeAlice();
 
   console.log('Creating policy...');
diff --git a/examples/pre/react/src/App.tsx b/examples/pre/react/src/App.tsx
index d4901ad2b..3c3de670f 100644
--- a/examples/pre/react/src/App.tsx
+++ b/examples/pre/react/src/App.tsx
@@ -4,8 +4,9 @@ import {
   EnactedPolicy,
   getPorterUri,
   initialize,
+  PRE_DOMAIN,
   SecretKey,
-  toHexString,
+  toHexString
 } from '@nucypher/pre';
 import { ethers } from 'ethers';
 import { useEffect, useState } from 'react';
@@ -48,8 +49,6 @@ function App() {
     return <div>Loading...</div>;
   }
 
-  console.log({ Alice, Bob, getPorterUri, SecretKey, toHexString });
-
   const makeAlice = () => {
     const alice = Alice.fromSecretKey(SecretKey.random());
     setAlice(alice);
@@ -96,11 +95,10 @@ function App() {
       startDate,
       endDate,
     };
-
     const policy = await alice.grant(
       provider,
       provider.getSigner(),
-      getPorterUri('tapir'), // Testnet porter
+      getPorterUri(PRE_DOMAIN.TESTNET),
       policyParams,
     );
 
diff --git a/examples/pre/webpack-5/src/index.ts b/examples/pre/webpack-5/src/index.ts
index 3417a426d..f1dfa348f 100644
--- a/examples/pre/webpack-5/src/index.ts
+++ b/examples/pre/webpack-5/src/index.ts
@@ -1,4 +1,11 @@
-import { Alice, Bob, SecretKey, getPorterUri, initialize } from '@nucypher/pre';
+import {
+  Alice,
+  Bob,
+  PRE_DOMAIN,
+  SecretKey,
+  getPorterUri,
+  initialize,
+} from '@nucypher/pre';
 import { ethers } from 'ethers';
 
 declare global {
@@ -58,7 +65,7 @@ const runExample = async () => {
     startDate,
     endDate,
   };
-  const porterUri = getPorterUri('tapir'); // Test network
+  const porterUri = getPorterUri(PRE_DOMAIN.TESTNET);
 
   const alice = makeAlice();
   const policy = await alice.grant(
diff --git a/examples/taco/nextjs/src/app/page.tsx b/examples/taco/nextjs/src/app/page.tsx
index c9bcea875..a7e3da8fa 100644
--- a/examples/taco/nextjs/src/app/page.tsx
+++ b/examples/taco/nextjs/src/app/page.tsx
@@ -5,6 +5,7 @@ import {
   encrypt, fromBytes,
   getPorterUri,
   initialize,
+  TACO_DOMAIN
 } from '@nucypher/taco';
 import {ethers} from 'ethers';
 import {useEffect, useState} from 'react';
@@ -89,8 +90,8 @@ function App() {
     const messageKit = await encrypt(provider, message, hasPositiveBalance, ritualId, signer);
 
     console.log('Decrypting message...');
-    const porterUri = getPorterUri('lynx'); // Test network
-    const decryptedMessage = await decrypt(provider, messageKit, signer, porterUri);
+    const porterUri = getPorterUri(TACO_DOMAIN.DEV);
+    const decryptedMessage = await decrypt(provider, messageKit,porterUri,signer);
 
     setDecryptedMessage(fromBytes(decryptedMessage));
   };
diff --git a/examples/taco/nodejs/src/index.ts b/examples/taco/nodejs/src/index.ts
index ad00311b5..a7062a41c 100644
--- a/examples/taco/nodejs/src/index.ts
+++ b/examples/taco/nodejs/src/index.ts
@@ -5,6 +5,7 @@ import {
   fromBytes,
   getPorterUri,
   initialize,
+  TACO_DOMAIN,
   toBytes,
 } from '@nucypher/taco';
 import * as dotenv from 'dotenv';
@@ -56,8 +57,8 @@ const runExample = async () => {
   );
 
   console.log('Decrypting message...');
-  const porterUri = getPorterUri('lynx'); // Test network
-  const decryptedBytes = await decrypt(provider, messageKit, signer, porterUri);
+  const porterUri = getPorterUri(TACO_DOMAIN.DEV);
+  const decryptedBytes = await decrypt(provider, messageKit, porterUri, signer);
   const decryptedMessage = fromBytes(decryptedBytes);
   console.log('Decrypted message:', decryptedMessage);
 };
diff --git a/examples/taco/react/src/App.tsx b/examples/taco/react/src/App.tsx
index 4073fb53e..67691a937 100644
--- a/examples/taco/react/src/App.tsx
+++ b/examples/taco/react/src/App.tsx
@@ -5,6 +5,7 @@ import {
   fromBytes,
   getPorterUri,
   initialize,
+  TACO_DOMAIN,
 } from '@nucypher/taco';
 import {ethers} from 'ethers';
 import {useEffect, useState} from 'react';
@@ -89,8 +90,8 @@ function App() {
     const messageKit = await encrypt(provider, message, hasPositiveBalance, ritualId, signer);
 
     console.log('Decrypting message...');
-    const porterUri = getPorterUri('lynx'); // Test network
-    const decryptedMessage = await decrypt(provider, messageKit, signer, porterUri);
+    const porterUri = getPorterUri(TACO_DOMAIN.DEV);
+    const decryptedMessage = await decrypt(provider, messageKit, porterUri, signer);
 
     setDecryptedMessage(fromBytes(decryptedMessage));
   };
diff --git a/examples/taco/webpack-5/src/index.ts b/examples/taco/webpack-5/src/index.ts
index 370eada34..3554c8e76 100644
--- a/examples/taco/webpack-5/src/index.ts
+++ b/examples/taco/webpack-5/src/index.ts
@@ -5,6 +5,7 @@ import {
   fromBytes,
   getPorterUri,
   initialize,
+  TACO_DOMAIN,
   toBytes,
 } from '@nucypher/taco';
 import { ethers } from 'ethers';
@@ -47,8 +48,8 @@ const runExample = async () => {
   );
 
   console.log('Decrypting message...');
-  const porterUri = getPorterUri('lynx'); // Test network
-  const decryptedBytes = await decrypt(provider, messageKit, signer, porterUri);
+  const porterUri = getPorterUri(TACO_DOMAIN.DEV);
+  const decryptedBytes = await decrypt(provider, messageKit, porterUri, signer);
   const decryptedMessage = fromBytes(decryptedBytes);
   console.log('Decrypted message:', decryptedMessage);
 };
diff --git a/packages/pre/src/index.ts b/packages/pre/src/index.ts
index 4f676b1ca..9b4a13d95 100644
--- a/packages/pre/src/index.ts
+++ b/packages/pre/src/index.ts
@@ -1,11 +1,3 @@
-export {
-  PorterClient,
-  fromHexString,
-  getPorterUri,
-  toBytes,
-  toHexString,
-} from '@nucypher/shared';
-
 export {
   Ciphertext,
   EncryptedTreasureMap,
@@ -21,3 +13,4 @@ export {
 export { Alice, Bob, Enrico } from './characters';
 export { Cohort } from './cohort';
 export { EnactedPolicy } from './policy';
+export * from './porter';
diff --git a/packages/pre/src/porter.ts b/packages/pre/src/porter.ts
new file mode 100644
index 000000000..8e244265a
--- /dev/null
+++ b/packages/pre/src/porter.ts
@@ -0,0 +1,17 @@
+import { getPorterUri as doGetPorterUri } from '@nucypher/shared';
+
+type PreDomain = 'oryx';
+
+export const PRE_DOMAIN: Record<string, PreDomain> = {
+  TESTNET: 'oryx',
+};
+
+export const getPorterUri = (domain: PreDomain): string => {
+  const preDomainKeys = Object.keys(PRE_DOMAIN);
+  if (!preDomainKeys.includes(domain)) {
+    throw new Error(`${domain} is not a valid PRE domain.`);
+  }
+  return doGetPorterUri(domain);
+};
+
+export { fromBytes, initialize, toBytes, toHexString } from '@nucypher/shared';
diff --git a/packages/shared/src/porter.ts b/packages/shared/src/porter.ts
index 175355766..816cc077a 100644
--- a/packages/shared/src/porter.ts
+++ b/packages/shared/src/porter.ts
@@ -12,21 +12,20 @@ import qs from 'qs';
 import { Base64EncodedBytes, ChecksumAddress, HexEncodedBytes } from './types';
 import { fromBase64, fromHexString, toBase64, toHexString } from './utils';
 
-type Network = 'mainnet' | 'tapir' | 'oryx' | 'lynx';
-
-const PORTER_URIS: Record<Network, string> = {
+const porterUri: Record<string, string> = {
   mainnet: 'https://porter.nucypher.community',
   tapir: 'https://porter-tapir.nucypher.community',
   oryx: 'https://porter-oryx.nucypher.community',
   lynx: 'https://porter-lynx.nucypher.community',
 };
+export type PorterNetwork = keyof typeof porterUri;
 
-export const getPorterUri = (network: Network): string => {
-  const uri = PORTER_URIS[network];
+export const getPorterUri = (network: PorterNetwork): string => {
+  const uri = porterUri[network];
   if (!uri) {
     throw new Error(`No default Porter URI found for network: ${network}`);
   }
-  return PORTER_URIS[network];
+  return porterUri[network];
 };
 
 // /get_ursulas
diff --git a/packages/taco/src/index.ts b/packages/taco/src/index.ts
index b1c36b574..617e917b2 100644
--- a/packages/taco/src/index.ts
+++ b/packages/taco/src/index.ts
@@ -1,7 +1,5 @@
 export { DkgPublicKey, ThresholdMessageKit } from '@nucypher/nucypher-core';
 
-export { fromBytes, getPorterUri, initialize, toBytes } from '@nucypher/shared';
-
 export * as conditions from './conditions';
-
-export { decrypt, encrypt } from './taco';
+export * from './porter';
+export * from './taco';
diff --git a/packages/taco/src/porter.ts b/packages/taco/src/porter.ts
new file mode 100644
index 000000000..6572db214
--- /dev/null
+++ b/packages/taco/src/porter.ts
@@ -0,0 +1,18 @@
+import { getPorterUri as doGetPorterUri } from '@nucypher/shared';
+
+type TacoDomain = 'lynx' | 'tapir';
+
+export const TACO_DOMAIN: Record<string, TacoDomain> = {
+  DEV: 'lynx',
+  TESTNET: 'tapir',
+};
+
+export const getPorterUri = (domain: TacoDomain): string => {
+  const tacoDomainKeys = Object.keys(TACO_DOMAIN);
+  if (!tacoDomainKeys.includes(domain)) {
+    throw new Error(`${domain} is not a valid TACo domain.`);
+  }
+  return doGetPorterUri(domain);
+};
+
+export { fromBytes, initialize, toBytes, toHexString } from '@nucypher/shared';
diff --git a/packages/taco/src/taco.ts b/packages/taco/src/taco.ts
index 3a23bd132..317f1fb8e 100644
--- a/packages/taco/src/taco.ts
+++ b/packages/taco/src/taco.ts
@@ -4,12 +4,7 @@ import {
   encryptForDkg,
   ThresholdMessageKit,
 } from '@nucypher/nucypher-core';
-import {
-  DkgCoordinatorAgent,
-  fromHexString,
-  getPorterUri,
-  toBytes,
-} from '@nucypher/shared';
+import { DkgCoordinatorAgent, fromHexString, toBytes } from '@nucypher/shared';
 import { ethers } from 'ethers';
 import { keccak256 } from 'ethers/lib/utils';
 
@@ -77,8 +72,8 @@ export const encryptWithPublicKey = async (
 export const decrypt = async (
   provider: ethers.providers.Provider,
   messageKit: ThresholdMessageKit,
+  porterUri: string,
   signer?: ethers.Signer,
-  porterUri = getPorterUri('tapir'),
 ): Promise<Uint8Array> => {
   const ritualId = await DkgCoordinatorAgent.getRitualIdFromPublicKey(
     provider,
diff --git a/packages/taco/test/taco.test.ts b/packages/taco/test/taco.test.ts
index 6a62e1fdd..ba615f71a 100644
--- a/packages/taco/test/taco.test.ts
+++ b/packages/taco/test/taco.test.ts
@@ -81,8 +81,8 @@ describe('taco', () => {
     const decryptedMessage = await taco.decrypt(
       provider,
       messageKit,
-      signer,
       fakePorterUri,
+      signer,
     );
     expect(getParticipantsSpy).toHaveBeenCalled();
     expect(sessionKeySpy).toHaveBeenCalled();