[REQ] Cola Cubes

Has anyone got a spot on cola cube recipe please?
I’m pretty sure there is lemon and blackcurrant in it but I’m struggling to find the right ratios.
I’m surprised nobody has a top recipe posted yet.

I had this as an energy drink cola. I made one batch and as it was far too sweet, but I reckon if you toned it down it would be pretty close. Maybe a good starting point any how

Cola (CAP) 10%

Energy Drink RF (CAP) 7%

[Ethyl Maltol (10% PG) Diluted 2% (TPA)] 2%