As a 15YoE Rails dev, I've had to work many times with I18n, and found it was often a hassle. Working on many features at the same time meant countless conflicts, and excel files filled with translations.

I've used tools like phraseapp and lokalise, they work well but are overpriced for SMB IMO.

In a recent gig, I had a tight budget and minimal needs (just needed branching support and a way for product people to suggest translations to the tech team without getting in the way)

So I built my own and it worked really well, I've since quit the company and they are still using it.

I decided to share it publicly and freely to see if it could gain any traction. If it does, I plan to keep a generous freemium plan and then charge fairly.