I've built many, many single-file HTML web apps over the years, mostly for internal use. So on that level, I love this! However, not to be a buzzkill, but I fe

I've built many, many single-file HTML web apps over the years, mostly for internal use. So on that level, I love this! However, not to be a buzzkill, but I feel like if you're spiritually aligned with this concept, you should just write self-contained vanilla JS. The Preact todo-list demo is not fully local—it downloads Preact from a CDN.