I responded to their Craigslist ad via email detailing which parts of their stack I did and did not have experience with. For some parts of their stack I said I

I responded to their Craigslist ad via email detailing which parts of their stack I did and did not have experience with. For some parts of their stack I said I have never used this but I have used this similar thing. Their first email response back to me was an offer which I accepted.