It depends on what you are pursuing. Software was never a true moat for the really hot stuff. See books Zero to One, 7 Powers. It can be moat when you have something extremely complex, like for Unreal Engine, software actually is the moat. However, when it comes to regular software, everything was always prone to being copied. Will it be copied, it depends entirely on what's for the grabs for someone else to copy it. If you have a mature SaaS, that already has some competitors, what does anyone gain by copying it if the projection for building a sustainable business is very small? Personally I am building something that is relatively complex (much more complex / non-standard than a CRUD and likely not in Claude training data, and something that would be a very bad idea to write it in AI slop due to security issues) and relatively niche, something that a well funded startup would never dream about building, yet something that a smaller team would have a difficult time to compete with me, LLMs or not.