Is company loyal to you? If not, then it should be easy to walk away. You created some scripts, and learned some new stuff. You gained something, and so did the

Is company loyal to you? If not, then it should be easy to walk away. You created some scripts, and learned some new stuff. You gained something, and so did the company. There is nothing preventing you from talking to HR about a raise etc. If they say nope, its time to quit.