I want to put 10% of the contributions (of what actually ends up on my account) into some help for people who are affected by the war in Ukraine. I haven't looked up anything yet. So you are welcome to make suggestions.
I collect the money and when it's enough I'll donate it at the end of the month or when I do the next monthly report. Just so that it's not eaten up by fees.
If 10% seems low to you, remember that your contribution is mainly to show appreciation and to support the making of the game. You decide how much this is worth to you. If you want to donate to a charity, do it directly.
I want to do this also as a motivator for me to be engaged in charitable causes on a regular basis also in the future.
Update:
I haven't been very consistent with what I put the 10% on and I don't like this method that much anyway, so I will discontinue this and adapt the amount and time of donation to what I can afford. Because currently I can't really afford anything, if I want to continue full time developing StarbaseSim. Maybe later on I can do donations on a regular basis, but not with fixed amounts or shares.