Yep, overall. Be up front, communicate it is not something you are as experienced with so it takes you more time and you are having to learn some new skills.

Yep, overall. Be up front, communicate it is not something you are as experienced with so it takes you more time and you are having to learn some new skills. Show them you can do it, but be honest with your estimates and be up front that you will likely make mistakes. Also, tell them when you are running behind before they are expecting something to be complete. My most important piece of advice though is don't feel like you have to say yes to every request when they bring it to you. That doesn't mean you are telling the owners "no". It means saying something more like, I'll write that down but I am so busy doing X that I won't get to it for at least Y days/weeks. And remind them that if they were to bring in a senior dev it would speed up the process and help you as well. As long as they are not abusing you, I'd say go for it and use the opportunity to learn. But as bbcbasic pointed out, some companies will try to take advantage of you (abuse you), so keep your eyes out for that as I would be looking for an exit if that starts.