Just the idea that some people were willing to give me some of their money with nothing in return sounded crazy to me. But some people are really generous and so I finally found the time to set up a couple of ways for people to contribute.
I set up a flexible monthly support where you can pay as much as you want starting from 1 USD per month. I know some people are not a fan of monthly payments so there's also a yearly version if you just want to pay for a coffee or a breakfast for my bday.
Finally, my BMAC link is still there if you want to just send a coffee.