什么是在线投放小型红宝石应用程序的最佳方式？

I have a small ruby application I wrote that's an anagram searcher. It's for learning ruby, but I would like to put it up online for personal use. I have some experience with Rails, and many here have recommended Sinatra. I'm fine with either, but I cannot find any information on how to use a text file instead of a database. I have a small ruby application I wrote that's