Localization crowdsourcing
Problem to solve
Localization mistakes and untraslated words
Further details
Eg. Russian version
Proposal
Add a tool or hot keys for users to select mistakes and propose correct variants. If a tool is easy to use and won't take more than a few seconds to report a problem and offer a suggestion, I'm sure people will contribute.
And you will get nice localized versions. Considering that you don't have much texts, you might in fact get full operational localizations just by crowdsourcing suggestions from users.
What does success look like, and how can we measure that?
Success can be measured by a number of suggestions and errors in localized versions, reported by users. At some point the number should decrease and it will also mean that the goal is achieved and that there are no more errors.
(If no way to measure success, link to an issue that will implement a way to measure this)
Links / references
How it's done with WP
https://www.wpbeginner.com/plugins/how-to-allow-users-to-notify-you-of-errors-in-wordpress-posts/
It won't work in GitLab case, but just to get an idea.