Migrate to bun and eslint.

eslint.config.mjs

@@ -0,0 +1,54 @@
+import importPlugin from 'eslint-plugin-import'
+import tsParser from '@typescript-eslint/parser'
+import eslintJs from '@eslint/js'
+import eslintTs from 'typescript-eslint'
+
+const tsFiles = ['src/**/*.ts']
+
+const customTypescriptConfig = {
+  files: tsFiles,
+  plugins: {
+    import: importPlugin,
+    'import/parsers': tsParser,
+  },
+  languageOptions: {
+    parser: tsParser,
+    parserOptions: {
+      project: './tsconfig.json',
+    },
+  },
+  settings: {
+    'import/parsers': {
+      '@typescript-eslint/parser': ['.ts'],
+    },
+  },
+  rules: {
+    'linebreak-style': ['error', 'unix'],
+    quotes: ['error', 'single', { avoidEscape: true }],
+  },
+}
+
+const recommendedTypeScriptConfigs = [
+  ...eslintTs.configs.recommended.map((config) => ({
+    ...config,
+    files: tsFiles,
+  })),
+  ...eslintTs.configs.stylistic.map((config) => ({
+    ...config,
+    files: tsFiles,
+  })),
+]
+
+export default [
+  {
+    ignores: [
+      'docs/*',
+      'build/*',
+      'lib/*',
+      'dist/*',
+    ],
+  }, // global ignores
+  eslintJs.configs.recommended,
+  ...recommendedTypeScriptConfigs,
+  customTypescriptConfig,
+]