Posting to TwitPic without ruby-twitpic gem

Hello everyone,

I need to post photos/videos to Twitter. I see that TwitPic seems to be
the most popular way of doing so.

I also see that there is a twitpic gem at github. However, this project
is already loaded with gems and I'd rather not have to add three new
ones (ruby-twitpic requires Nestful and ROAuth) especially since I'm
already using Omniauth, Twitter and Event Machine.

Is anyone posting photos to Twitter (via TwitPic or other) the gems I'm
already using?

TIA,
Dan