[jillesvangurp]

Agreed. You have to develop such that your product survives whatever is fashionable today in any case. As Joel Spolsky pointed out at some point, your architecture is not the framework you picked.

On the other hand, CD/CI needs to be an enabler and in small startup there is only so much time you can dedicate to it. Any change on this front tends to be disruptive and suck up non trivial amounts of development time. So keep it simple. Follow the principle of the least amount of surprise (for new team members if you hire them). And keep it reasonable. You are going to cut corners here one way or another. Don't obsess about that.

The Dark people seems to want you to buy into their entire stack (editor, language, saas platform, etc.). That sounds like a lot of risky unproven technology to me. Maybe use something more mainstream like heroku?