Replacing some subscription app like Any.do, Google Calendar, fitness/diet tracking or basically any other CRUD-centric app, needn't be insecure, and a semi-competent developer can easily host it, continue further development (with or without vibe coding) and secure it. There's huge benefit for software developers that do find themselves using many of these apps with active subscriptions to make their own, tailored for themselves, and cut down their spending.
Yes, when it comes to commercialising such software, more work needs to be done (mostly in support and marketing), but for personal use it's fine. The author explicitly states they don't trust vibe coding enough to turn these into products.
The writing is hardly on the wall for all these companies which make little todo list apps and calendars. The vast majority of people could get a LLM to produce an alternative but the lacking they have in basic software engineering would eventually be a hurdle to further development. Most people will continue spending $1.00/month here, and $2.99/month there. There's no reason why software engineers need to do that anymore, unless paying this gives them access to some sort of content repository (music, books) or actual advanced software.
