It's probably not realistic as long as you insist on writing such a complex and externally accessible application in a relatively low-level and error-prone prog

It's probably not realistic as long as you insist on writing such a complex and externally accessible application in a relatively low-level and error-prone programming language. Remove that constraint and the odds change considerably. Now notice the companies behind all the major browsers and the companies behind most of the popular recent programming languages are basically the same set, and join the rest of us in wondering how this is still happening.