From the bottom of the FAQ at the end of the page:
How can I help?
We welcome help, especially from those with experience in RFI shielding and software GUI development. Your expertise could make a big difference as we refine both the hardware and user interface. While we’re actively pursuing funding to support the project long term, any assistance now would accelerate our progress and broaden the impact of Wow@Home. Whether it’s technical support, outreach, or collaboration, your contribution matters.
What is lacking, or I cannot find, yet, is steps for me to take or contribute.