Question about tech choices for app dev on android

Hi all,

I have an idea or two for simple and useful android apps, honestly they have been done before. I am looking a doing them as a learning experience for mobile app dev. Flutter looks really cool to me, I do have an attraction to shiny things that don't always work out. I am aware of other options java/kotan and typescript/javascript/framework. It is not a very informed view. I am thinking about TS as potnetially the quickest path to done and a marketable skill. What are your thoughts on the matter?

Thanks,

M