There are many things wrong in the article and unmentioned. Most notably:
- The article states it was updated for Strapi v4 yet the docker-compose YAML refers to the Strapi v3 Docker image. Which essentially makes the entire article for Strapi v3. Looking further it is stated that a v4 Docker image is delayed cause of other priorities. Probably the same ones as making Node v16 still mandatory.
- The article uses next-auth v3 but the newest next-auth version is v4 which introduced breaking changes.
Please either take the article offline or update it because as we can see here it only brings confusion and wastes peoples time in figuring out the right stuff - which should have been mentored in the article provided by Strapi.