Very nice! If you have a chance, some improvements for accessibility for you to consider, for when you have time:
1. Reducing distractions: Option to turn off the starfield (or dim it right down). Makes me a bit dizzy, but some will really like it. Some people may find it a distraction too.
2. Option to make your star-ship far more prominent. Maybe a bolder outline, or make it pulsate colours a few times at the start, or some sort of highlighter. For people with tracking issues, as it is, may be a problem. It took me a while to work out what I was supposed to be tracking. Some will constantly find it hard as it is.
3. Speed option. It's still too fast for some players. Perfect for some too.
4. Sound FX. Can really help someone. I like that it's sparse now, but some sounds would be really help people with tracking issues, comprehension issues, sight issues and so on.
5. Menu option. I love the purity of your start, play, restart. But menu options can still be extremely important... even if those menu options are only available via a cog that can be click on by a mouse... (or one-time set-up at the start). It's worth knowing that some switch users can use mouse emulation... and some would be purely reliant upon a helper anyway to sort that out.
Anyway, good luck, and well done.