Hello. I will definitely tell you how to make your own online store. There are already two publications on this topic.
https://steemit.com/hive-185836/@hardphotographer/steemit-and-business-or-topic-website-creation-and-template-selection-and-pre-installation-of-code-for-working-with-keychain-a
https://steemit.com/hive-185836/@hardphotographer/steemit-and-business-or-topic-theoretical-part-and-discussion