Looks great Lukas S.! I like the idea behind the cursor but agree it's quite distracting at that luminance - perhaps toning it down and only changing the cursor when it interacts with clickable items might be the answer, so you get the native cursor when moving over things like text, rather than a custom one all the time.
A friend of mine did a very similar thing, but it feels less disruptive, see what you think (not Relume sorry!) https://techcentre.com/
