I find Passport to be a dumpster fire of complexity and foot guns while Ory Kratos[0] + Ory Oathkeeper[1] have been the simplest way to add Auth to a project now (even for an MVP).
I've been using the zero trust proxy tutorial[2] and copy pasting the configs over. I just chuck some containers into Docker Compose and it goes. I don't even have to write the UI because Kratos does that but.
For bigger projects where I need a full-fledged and reliable solution out of the box, I use Ory[1].
[0] http://www.passportjs.org/ [1] https://www.ory.sh/