lint

fixed with:

    ./node_modules/.bin/eslint --format=unix packages/*/src/**/*.ts packages/*/src/*.ts --fix

fix #266

.eslintrc.js

@@ -1,17 +1,25 @@
 module.exports = {
-  // extending prettier fucks up my vim...
   extends: [
     'airbnb-base',
     'plugin:@typescript-eslint/recommended',
     'prettier',
   ],
-  plugins: ['import', 'prettier', '@typescript-eslint'],
+  plugins: ['unicorn', 'import', 'prettier', '@typescript-eslint'],
   parser: '@typescript-eslint/parser',
   parserOptions: {
     project: './tsconfig.json',
+    ecmaVersion: 'latest',
+    sourceType: 'module',
+  },
+  env: {
+    node: true,
+    es2024: true,
   },
 
   rules: {
+    curly: 2, // Enforce braces on "if"/"for"/etc.
+    // Avoid accidental use of "==" instead of "===".
+    eqeqeq: 'error',
     camelcase: ['error', { properties: 'never' }],
     'class-methods-use-this': 'off',
     'comma-dangle': [
@@ -44,13 +52,50 @@ module.exports = {
     'import/extensions': 'off',
     'import/prefer-default-export': 'off',
 
+    '@typescript-eslint/no-namespace': 'error',
+    // TODO: '@typescript-eslint/no-floating-promises': 'error', // Promises must catch errors or be awaited.
+    // TODO? '@typescript-eslint/no-unsafe-assignment': 'error',
+    // TODO? '@typescript-eslint/no-unsafe-return': 'error',
+    // TODO? '@typescript-eslint/no-unsafe-call': 'error',
     '@typescript-eslint/no-explicit-any': 'off',
     '@typescript-eslint/explicit-member-accessibility': 'off',
     '@typescript-eslint/no-unused-vars': 'error',
     '@typescript-eslint/no-empty-function': 'off',
     '@typescript-eslint/explicit-function-return-type': 'off',
     '@typescript-eslint/ban-types': 'off',
     '@typescript-eslint/explicit-module-boundary-types': 'off',
+
+    // Rules from https://github.com/sindresorhus/eslint-plugin-unicorn
+    // TODO: 'unicorn/no-useless-promise-resolve-reject': 'error',
+    // TODO: 'unicorn/prefer-event-target': 'error',
+    // TODO: 'unicorn/prefer-string-slice': 'error',
+    // TODO? 'unicorn/custom-error-definition': 'error',
+    // TODO? 'unicorn/prefer-json-parse-buffer': 'error',
+    // TODO? ESM modules https://github.com/sindresorhus/eslint-plugin-unicorn/blob/main/docs/rules/prefer-module.md
+    // 'unicorn/prefer-module': 'error',
+    // 'unicorn/no-null': 'error',
+    'unicorn/no-abusive-eslint-disable': 'error',
+    'unicorn/prefer-at': 'error',
+    'unicorn/prefer-negative-index': 'error',
+    'unicorn/prefer-regexp-test': 'error',
+    'unicorn/prefer-ternary': 'error',
+    'unicorn/no-unnecessary-polyfills': 'error',
+    'unicorn/no-useless-spread': 'error',
+    'unicorn/prefer-array-some': 'error',
+    'unicorn/prefer-blob-reading-methods': 'error',
+    'unicorn/prefer-code-point': 'error',
+    'unicorn/prefer-date-now': 'error',
+    'unicorn/prefer-dom-node-text-content': 'error',
+    'unicorn/prefer-includes': 'error',
+    'unicorn/prefer-keyboard-event-key': 'error',
+    'unicorn/prefer-modern-dom-apis': 'error',
+    'unicorn/prefer-modern-math-apis': 'error',
+    'unicorn/prefer-native-coercion-functions': 'error',
+    'unicorn/prefer-node-protocol': 'error',
+    'unicorn/prefer-object-from-entries': 'error',
+    'unicorn/prefer-reflect-apply': 'error',
+    'unicorn/prefer-string-trim-start-end': 'error',
+    'unicorn/prefer-type-error': 'error',
   },
 
   settings: {