To give some honest feedback, I think you need to put a lot more work into explaining what geometric algebra is and what the code you show in Grassmann.jl does

To give some honest feedback, I think you need to put a lot more work into explaining what geometric algebra is and what the code you show in Grassmann.jl does before you can expect to get any serious funding. If nobody understands what you're talking about in the README, why would they want to fund it? Even looking in the comments here, currently the two comments complimenting you are two people who have no idea what it actually is. That might be enough to garner a passing interest, and maybe pocket-change donations, but it's not enough to get serious investments. Furthermore, the sorts of sketchy compiler abuse being done in Grassmann and your refusal to address it until someone pays you to do so does not send the sort of message potential funding sources or people evaluating whether or not they should adopt your software want to hear. To be clear, I do think you've done some seriously impressive work on Grassmann.jl and I wish you the best in pursuing this. I hope this is taken as constructive feedback.