Old cameras but they have been sitting.
What can I use to record and ensure the data is saved locally. Nothing serious, just chickens being accused of hurting plants when they are monitored. I just want to catch whatever it is (deer? Etc?) eating it so I can have evidence it isn’t them


Probably going to be Frigate. It’s meant for NVR, and has easy time management tools for review, plus you can setup an easy monitor stream with RTSP or ON IF to watch live from elsewhere.
You could also engage it’s inference for doing simple identification or animals and objects to tag clips where something happens in a Region of Interest.