feat: test infra, ci infra, readme

.github/workflows/test.yml

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+# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs
+
+name: Test
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.platform }}
+
+    strategy:
+      matrix:
+        node-version: [14.x, 16.x, 18.x]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: pnpm/action-setup@v2
+      with:
+        version: 7
+    - name: Use Node.js ${{ matrix.node-version }} on ${{ matrix.platform }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'pnpm'
+    - run: pnpm install
+    - run: npm run build
+    - run: npm test
+
+    - run: npm run check:examples
+    - run: npm run build:examples

.prettierrc.yml

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+# Changes over the default config are marked with a double exclamation mark.
+
+# We generally allow wider code lines, but for auto formatting this
+# is quite a good rule to produce readable code.
+# In ESLint we allow for code being 110 character long, comments 140 characters.
+# With auto formatting in place and the current heuristics of prettier it works
+# better with a default of 80 characters per line though. (default = 80)
+printWidth: 80
+
+# Use two spaces for tabs (default = 2)
+tabWidth: 2
+
+# Unify with convention used in JSX, HTML and CSS to use double quotes (default = false)
+singleQuote: false
+
+# Quote properties as needed (default = as-needed)
+quoteProps: as-needed
+
+# Keep using double quotes in JSX like in HTML. (default: false)
+jsxSingleQuote: false
+
+# Don't use semicolons where they are not required (default = true !!)
+semi: false
+
+# Don't do stupid trailing commas reducing noise ratio. (default = es5 !!)
+trailingComma: none
+
+# More space is better for readability (default = true)
+bracketSpacing: true
+
+# Put the > of a multi-line JSX element at the end of the last line (default = false)
+bracketSameLine: false
+
+# Put parens of around arguments of arrow functions (default = always)
+arrowParens: always

.release-it.json

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+{
+  "git": {
+    "commitMessage": "chore: release v${version}"
+  },
+  "github": {
+    "release": true
+  }
+}

babel.config.cjs

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+module.exports = {
+  presets: [
+    '@babel/preset-typescript',
+    ['@babel/preset-env', {targets: {node: 'current'}}]
+  ],
+};