Very good work and quite relevant for me!
I use a lot of this in my ongoing projects. I have to do a bit of updating to catch up. I really like PostgreSQL and it seems to work well with Gorm. Pg seems to do everything I need so far and I really like the Gorm ORM work. I am also using Docker so all of this is really an excellent comparison to the way I like to work. As I mentioned, I have a bit of catching up to do.
Thanks for posting a really good look at these technologies and your implementation. I look forward to the follow on article.