yadroRus

You can read translated site here: https://dev-vk-com.translate.goog/api/access-token/authcode-flow-user?_x_tr_sl=ru&_x_tr_tl=en&_x_tr_hl=ru&_x_tr_pto=wapp  So, without `client_secret` it will not works.

It is not so, ENV settings gets from VK account and all works for me if i used direct connection to VK services without Fastify plugin. But if you are...