title: How to store and access API keys and passwords with Gatsby?
body: <p>I am working on a Gatsby app that implements some 3rd party APIs, all requiring personal credentials. Later on I'm planning to also add a DB, so that will require credentials as well. 
  Since all my code is committed to GitHub, I'm looking for a way to store and access these in a secure way.</p>
  
  <p>While I haven't deployed my app yet, the solution should apply to both local development as well as production.</p>
  
  <p>I'd like to mention that I've never (had the chance to) worked with similar problems in that past, thus I don't even know where to look or what I'm supposed to look for to solve this.</p>