I don't know about "only doing trivial things". I've built a fully threaded webmail replacement for Gmail using imap, indexes mail to postgres, local Django webapp renders everything in a Gmail/Outlook style threaded view with text/html bodies and attachments and a better local search than gmail, and runs all locally. Started as a "could I?" and ended up exceeding all my expectations
That would be considered a trivial thing, why wouldn't it be? It's just basic crud you're doing. Nothing unique and that hasn't been written about tens of thousands of times across millions of books/blogs/comments before.
I used it to analyze a single player game binary from steam, hook into all the relevant game state modifying functions, add full multiplayer state sync and then also hook all the relevant portions of the UI to add multiplayer to the game.
I'm not saying it's the hardest thing but I also wouldn't consider it trivial.
