FLOSS/fund for free and open source projects

I've maintained a fairly popular open source project for over 13 years[1]. The software is basically "complete." How does funding work for someone like me? I have no initiatives with it that require funding. Occasionally, I need to fix a bizarre obscure bug, or support a new python version/feature (async/await being the last big one). But otherwise, I just field questions a few times a month.

Truth be told, I'd rather be done with the project completely. It's like a little monkey on my back that I can never be rid of, that I must always tend to. But at the same time, since I can never realistically receive funding for it, the only value I get is the fact that my name is on it. I wish a big, legit company would just buy it off of me somehow, but there's no incentive for them either. I don't know how this ends.

1. https://github.com/amoffat/sh

You can always just stop working on it. You aren't obligated to do anything further if it doesn't bring you joy. Update the README to say you've stopped maintaining it, and to add a bit about searching for a new maintainer.

If you believe you still get an ongoing benefit (reputational or whatever) by being its maintainer and continuing to support it, and if you still want that benefit, then you have to keep up the work. Very little in life is truly free, unfortunately.

You could also see if there's a way to monetize your work on it. If people want support or need bugs fixed, they can pay you to do so, for example. Might even look into GitHub Sponsors, if you haven't already. I do get that it's harder to solicit donations for something that's "finished", though.