Add rule configs

index.js

@@ -49,12 +49,18 @@ module.exports = {
 
         /* Override recommended */
         '@typescript-eslint/no-unused-vars': ['warn', { ignoreRestSiblings: true, argsIgnorePattern: '^_' }],
+        // Keep enabled and allow namespace declaration in source (not definition) files.
+        '@typescript-eslint/no-namespace': ['error', { allowDeclarations: true }],
 
         /* Disable rules in recommended */
+        // I think it is too strict to enforce Record<string, unknown> instead of {} (especially for default prop type parameter).
+        '@typescript-eslint/ban-types': 'off',
         // Some API needs snake case type, and rarely violated
         '@typescript-eslint/camelcase': 'off',
         // Too explicit
         '@typescript-eslint/explicit-function-return-type': 'off',
+        // It enforces all exported funcs to have explicit return type. Too explicit.
+        '@typescript-eslint/explicit-module-boundary-types': 'off',
         // Empty function is used to match to interface definition while it is actually no-op.
         '@typescript-eslint/no-empty-function': 'off',
         // Rewriting `interface Foobar extends Baz {}` to `type Foobar = Baz` is blah