I want to create a twitter app that automatically re-tweets all tweets that have certain words included. I'm not interested in spamming, I just want to be able to follow some stuff on Twitter more easily and not have to do 30 different searches every day. This "bot account" would be very useful to other people I know too.
I've been trying to find out how to get this done, but I only find links to apps that have a monthly fee. Is there a free solution? Is it possible to code something like this myself? The most promising guide I found doesn't work anymore (https://www.krautcomputing.com/blog/2013/11/19/how-to-set-up-automatic-retweeting-using-a-google-apps-script-yahoo-pipes-and-twitterfeed/), as it gives the "Script is using OAuthConfig which has been shut down" message.
Can anyone help with this? Sorry if I'm posting in the wrong forum, feel free to move this message to the right place.