https://hanami.run email forwarding services with webhook, smtp, disposable emails

Tech Stack:

- Ruby/ for webapp and user facing service: very quick to get the feature out, easiser to work with HTML, database access. Being a one man shop, I have to develop fast

- Go: mail server and anything that isn't user facing or doesn't involve rending HTML. Statically type to reduce bug, performance to cut cost, this is the core of business.

- React Native: for our (upcoming) mobile app so I can share code for both of android/ios

I think the ability to ship out feature fast is important to keep user engage. And with the performance of Go I can keep cost low. https://hanami.run currently handles about 50K domains and processes 10 email per second and the entire infrastructure is ~ $100 per month including redundancy.