Is my stack right for this?
A sanity check before the first file, not after the fiftieth.
I'm about to build <one sentence> using <stack>, hosted on <host>. Be honest: - Is this a good fit, a workable fit, or a mistake? - Which part of what I'm building will this stack make awkward? - Is there anything the host can't do that this project will need? - If you'd change one thing, what and why? If the answer is "it's fine, stop worrying and build it", say that.
Most stacks are fine for most first projects. The useful answer is the one awkward part, so you can plan round it rather than find it in week three.