Making minimal system that works, but if you change eslint.config.mjs:12 and uncommented it fails

 Error while loading rule '@typescript-eslint/await-thenable': You have used a rule which requires parserServices to be generated. You must therefore provide a value for the "parserOptions.project" property for @typescript-eslint/parser.

Author: alexrecuenco

.eslintignore

@@ -0,0 +1,20 @@
+!*.js
+!*.mjs
+!*.cjs
+!*.ts
+lib/
+build/
+build-*/
+dist/
+.vscode/
+!.vscode/*.json
+
+node_modules/
+coverage/
+report/
+package-lock.json
+.pre-commit-cache
+
+openapi.*
+*codequality.json
+# **/metadata.* # if linting becomes slow, remove all metadata files

eslint.config.mjs

@@ -0,0 +1,17 @@
+import eslintPluginAstro from 'eslint-plugin-astro';
+import tseslint from "typescript-eslint";
+
+export default [
+  ...tseslint.configs.recommended,
+  // First issue, eslintPluginAstro MUST be defined after, since it overrides the typescript parser
+  ...eslintPluginAstro.configs['flat/all'],
+  {
+    rules: {
+      // If this is turned on, it fails.
+      '@typescript-eslint/await-thenable': "off",
+      // '@typescript-eslint/await-thenable': "error",
+      // Error: Error while loading rule '@typescript-eslint/await-thenable': You have used a rule which requires parserServices to be generated. You must therefore provide a value for the "parserOptions.project" property for @typescript-eslint/parser.
+      "@typescript-eslint/no-explicit-any": "error",
+    },
+  },
+];