How Can I Batch Process Thousands of Images?

Richard is a night sky photographer, and he uses photoshop to create time lapses. He would like to apply the same photo settings to thousands of images he has already taken. Is there a batch mode that can do that? The chatroom says that there is a tool called PixInsight (Windows, macOS X, Linux), which has scripting that can perform that task. There's also a handy color management tool. There's also LR TimeLapse.

Sony also has a deal with Capture One, which could be handy for Richard since he's using a Sony A7RIV camera.