feat: Initial clean release of CHM

packages/app-mobile/utils/polyfills/bufferPolyfill.ts

@@ -0,0 +1,15 @@
+
+import { Buffer } from 'buffer';
+
+// Fix the subarray method.
+// TODO: Remove this after https://github.com/feross/buffer/issues/329 is closed
+const originalSubarray = Buffer.prototype.subarray;
+Buffer.prototype.subarray = function(start: number, end: number) {
+	const subarray = originalSubarray.call(this, start, end);
+	Object.setPrototypeOf(subarray, Buffer.prototype);
+	return subarray;
+};
+
+// TODO: Remove this "disable-next-line" after eslint supports globalThis.
+// eslint-disable-next-line no-undef
+globalThis.Buffer = Buffer;

packages/app-mobile/utils/polyfills/crypto-polyfill/index.ts

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+import 'react-native-get-random-values';
+
+// nanoid uses require('crypto').getRandomValues, which doesn't work in React Native.
+// This file is a partial polyfill for the NodeJS crypto module.
+
+// eslint-disable-next-line import/prefer-default-export -- This needs to match the exports from NodeJS crypto
+export const getRandomValues = (array: ArrayBufferView<ArrayBufferLike>) => {
+	return crypto.getRandomValues(array);
+};

packages/app-mobile/utils/polyfills/crypto-polyfill/package.json

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+{
+    "name": "crypto-polyfill",
+    "private": true,
+    "main": "./index.js"
+}

packages/app-mobile/utils/polyfills/index.ts

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+import './bufferPolyfill';
+
+// For aws-sdk-js-v3
+import 'react-native-get-random-values';
+import 'react-native-url-polyfill/auto';

packages/app-mobile/utils/polyfills/index.web.ts

@@ -0,0 +1,2 @@
+// Only some of the React Native polyfills should be used on Web:
+import './bufferPolyfill';