A possible alternative solution for those sites hosted at WP Engine. It might be possible to replicate the updater on the client side.

It’s 4AM where the author’s at. If you’re awake and looking, maybe try it? Contribute some feedback?

https://github.com/balazsrm/wp-local-updater

#WordPress

GitHub - balazsrm/wp-local-updater

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GitHub
@alex going to check this out tomorrow! Thank you for sharing!
Arthur Reeder / WP Plugin Proxy · GitLab

GitLab.com

GitLab
@alex looks like the repo is gone now.