To keep myself mentally engaged and in order to feel like I'm contributing to our economic situation (however small that contribution may be). I'm thinking of selling some of my handmade handbags, wallets etc online by setting up my own website and possibly utilising a website like etsy.com

I've been bought across by my partners employer on his B permit. Does this permit allow for me to sell online? What would the tax implications be? If it grows into a reasonable sized business (ideally) would this cause issues with me being in the country?

Obviously I'd be starting out (very) small, but I've had a number of (qualified) people mention that they would to see grow into a larger brand and some have asked to stock it in their shops if I grow substantially.

Does my B permit status allow me to do this?