How to use A1111 with a Blackwell GPU?

Hi,

I just installed an RTX 5090 and I'd like to use my old installation of A1111 with it. I found this guide: https://github.com/AUTOMATIC1111/stable-diffusion-webui/discussions/16818

I followed it but none of the methods worked for me (even the new installation didn't work), I keep getting the same error when I try to generate something:

RuntimeError: CUDA error: no kernel image is available for execution on the device CUDA kernel errors might be asynchronously reported at some other API call, so the stacktrace below might be incorrect. For debugging consider passing CUDA_LAUNCH_BLOCKING=1. Compile with `TORCH_USE_CUDA_DSA` to enable device-side assertions.

I wasn't able to find a fix for this, is there anyone out there that made it work?

Thank you.