I personally love what your doing. We Will follow and donate from time to time.
We also rescue (over 60 now) and keep cats. 14 total counting the outdoor ferals we feed.
This is a gif of our current rescue week 5.
All will be spay/neuter and vet visited for shots before furrever homes.
Please find a way to keep doing what your doing. And look into any spay/neuter free or cheap programs nearby. They have free programs here in Florida for wild ferals.