Isn't it? I am totally looking forward to a grammar checker that can compete with DeepL or Grammarly that can run locally and not heavy on resources. This will complete the holy trinity of local and free natural language editing; translations, grammar/spell checker, thesaurus/dictionary!

There is Harper as local grammar checker; an amazing project, but it is only in English and not yet able to replace the mentioned tools: https://writewithharper.com/