"I just feel having the little side project that makes a little money in this day and age is over now"

When you consider Wordle's popularity, it's hard for me to say that SaaS is over. I think the quality of the software needs to be top-notch plus it needs to offer something that only a net connected app can offer. I'd say something like networking, having many people connect in some manner. Also, the software has to be completely debugged and it needs to be something more than can be vibe coded in a few hours. Ultimately, it needs to be something that's great to use plus it needs to be something that's easier to pay for than to get AI to create.