Just like OP, I build small sites for clients. I'm looking to stay relevant by getting into eCommerce. I've been building Shopify stores and apps in my spare ti

Just like OP, I build small sites for clients. I'm looking to stay relevant by getting into eCommerce. I've been building Shopify stores and apps in my spare time. What software does eCommerce generally use? Do you think eCommerce dev jobs will still exist 10 years from now? Thanks for any advice!