Feature Flag ability

[achiurizo]

We should create feature flags to help us better test behaviors we implement as we push changes. This makes it easier for us to:

• Test new features before doing a full roll out
• Allows us to test features for a set group or matching actor
• Allows us to set percentile of groups we want to test this out

We can use existing libraries like fun_with_flags to help us enable feature flag for the project.

[pdobacz]

I looked through the lib cited - looks cool.

But do you have a specific idea of a feature (elixir-omg-related) which could leverage this?

I have a while thinking what could that be, and have some ideas but none of them are ones where feature flag would really shine. This seems to be because the features of our apps are more protocol-oriented and may touch a multitude of independent deployments.