> How did you manage to even get an interview for a position using a language/environment you're not familiar with? Just get familiar with it. Post an interest

> How did you manage to even get an interview for a position using a language/environment you're not familiar with? Just get familiar with it. Post an interesting small project to your github written in that language. Blogs are often useful for demonstrating your interest and aptitude for technologies. All of that is attractive to an employer.