Definitely not. The common justification for this is that we, as the most intelligent species on the planet, have developed a moral conscience. As such, it is unconscionable that we support the literal mass murder and ill-treatment of billions of animals each year when there are alternatives that require no suffering and no death.
You're going to find it very difficult to get people to invest their money in something that has no demo or detailed information. Your best bet is to create a minimum viable product and get feedback from the community (HackerNews could help).
"A customer will not know or care if you are using Ruby, Go, PHP or any other language as long as what you have written is performant and is fit for purpose (which all modern languages are)."
Where games are concerned I'd tend to agree (though Minecraft was built in Java and was TERRIBLE for the first couple of years, now look at it).
Why do you need a deployment system if you have nothing to deploy? Build the project locally, then use continuous delivery when you have something to deliver.