Thanks for responding, I appreciate the insights here! I'm not focused on offering every single feature at the moment. This is a brand-new project and also is not in the same market as the products you have mentioned (AB Tasty, Optimizely, etc.). Those products may offer a lot more than A/B testing, but for my situation, I have a single, clear problem that I want to solve which doesn't require much.

No probs at all mate, feel free to reach out if you need to bounce ideas. As I say I’ve quite a bit of experience from leading out the development offering in an agency and building a bespoke AB Testing IDE.