My colleague wrote a post addressing an important dev (and not only) problem - gender.
Women represent almost half of the population, yet they still end up getting addressed as men - this is the responsibility of devs to change this:
Consider translating your game into more languages, if you see many fans are abroad.
See this post, for example: https://publish.indielocalization.com/fan-or-pro-how-to-localize-your-game-into-other-languages-and-actually-win-at-it-499cef5ef4dc
Devs, there's a problem, and as you know where there's an unsolved problem, there's an opportunity for a developer to create a tool that solves that problem.
So, a couple days ago I got inspired and wrote a post:
https://publish.indielocalization.com/how-video-game-localizers-could-work-but-dont-f6940cbc2cc3