In my experience, fundamentally when you're starting a software project, you need to make a strong up-front decision between two things:

1. I am using technology in order to build this thing.

2. I am building this thing in order to use this technology.

Developers often fall in the (2) camp but don't admit it. There's an allure to using the new, sexy tech that will solve all their problems, whether that's Rust, Kubernetes, LLMs, etc.

If you're in the (1) camp, you should stick with what you know; and if you know that what you know isn't enough to build the thing, you should use whatever is most common and straightforward, not something off the beaten path.

Games seem to be the biggest trap, because solo devs often end up building a game engine when they set out to build a game. If you really want to build a game, just use Unity/Unreal/Godot, I promise it'll go better for you.