React Native Front End and JavaScript Back End blockchain messenger/chat with encryption

I need code for APP: React Native Front End and Python Back End blockchain messenger/chat with encryption MAIN POINT : teach me (I have no experience with React Native, but have experience in Python ) how to use and install this code !!! I do not have experience with Apps Developing platform is Windows : so I do have ONLY Windows computer Fully decentralized APP (NO SERVER used) : 1 app is installed on each client computer/ mobile 2 they communicate independently 3 encryption for client to client 4 messages history is kept properly For ios, android, windows, linux, Ipad, Iphone, apple laptop : all is NOT web based but App For example customize some code from GitHub or from [login to view URL] Build a Blockchain & Cryptocurrency | Full-Stack Edition OR [login to view URL] Top 12 Open source Messengers with End-to-end Encryption OR teach me your own code **************************************************************** Why Some of you want so much money if this already done and explained by Udemy videos and even this one is free [login to view URL] Build a Blockchain & Cryptocurrency using Python you need only to teach me, help me understand this in more details ???? *************************************************************** Dear freelancers, Many of you applied thank you very much But all of you with whom I already communicated, even do not understand project description PLEASE do not waist my and your time, be serious and considered THANKS PS and please do not raise price from your bid, since many do this.... By way as written above nothing complicated is about code and main idea is to give clear explanations then take care to provide instructional videos and written materials how to install, use and customize code!!! If you have clear thinking and know material these videos would take time not more than ~2 hours of computer screen recordings can you make sure for yourself you understand what is blockchain messenger, and different this from usually used blockchian for cryptocoin exchange ? do you understand that blockchain messenger/chat is different this from usually used blockchian for bitcoin?