In the world of LLMs the new version of "open source" is LLM makers using prompts which are then used in training leaking your code into the next version of the model therefore distributing your code for "free" minus your payments to the LLM maker.

It's probably a good thing because far from your "secret sauce" so much programming work is companies doing the same very boring things over and over connecting pipes together and making extremely similar design decisions for mundane tasks.