Github portfolio for Ruby on Rails or security through obscurity?

Question

Ruby on Rails

Hello!
I'm new to RoR, looking to get into the profession with this technology. Like any newbie, I want to make sure that my Github profile is not a virgin desert.
And my question is quite simple.
What can a Ruby on Rails developer's Github portfolio consist of?
I'll reformulate my question. I'm going to be writing a couple of RoR sites - a business card blog (which every first Rails noob probably wrote), a service for calculating troop damage in Heroes of Might & Magic, a couple of other small hand-stuffing features. And I have a question - is it worth uploading their code to Github, is this a good practice? Doesn't this violate the security of the site? Maybe only certain gems/modules/etc should be made public? Or is security through obscurity still a vicious practice, and there is nothing wrong with throwing open the doors of the site's internal structure?
Naturally, I'm not worried about this particular example - well, who would think of hacking a calculator for a game? I'm worried about instilling in myself as a developer the right paradigms of thought =-)
But still, what should be uploaded to your Github profile? ..

Answer 1

My personal vision: Everything non-commercial in open source. Commercial projects - to private repositories

Answer 2

Do not add a file with passwords from the database and a file with tokens to the git, the main thing. Well, whether to create the appearance of security is your business. If the project is yours and non-commercial, I wouldn't worry about its sources.