I have created an opensource development tool called DuckRails.
Its main purpose is to allow developers to quickly mock API endpoints that for many possible reasons they can't reach at a specific time.
You can find installation instructions here (including setup via docker image).
You can browse the project's GitHub wiki pages for usage guides.

Latest comments (13)
This is really cool! Awesome work!
Thank you!
It's really interesting, Thanks
Thank you!
Cool Why the name ?
Thank you! Regarding the name, I combined:
Duck: "If it looks like a duck, walks like a duck and quacks like a duck, then it's a duck"
+
Rails: because it's a Ruby on Rails application
Hahaha a bit misleading though as I initially thought it's somewhat Rails-limited.
When I see the name all I can think is "DuckRails... Woohoo", and I love it!
:D
Really interesting
Thank you
Cool!
Thank you