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I cringe at the thought of putting versioning gates all over my code, but maybe that's the easiest solution.

What about having two code bases on your production server and having your web server (nginx) route the traffic accordingly? 85% goes to the current code base and 15% goes to the new one?

If that's possible it would seem pretty easy.

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I think that makes it less testable but would probably work, it's probably a good stop gap as long as you don't want to test more than one "feature" at a time.

Gating would probably work better in the long term as you get more devs and users, and need to do things like A/B/C testing.

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