In my experience combining multiple languages usually creates more complexity and is slower than each of them individually because you need to convert the data structures of one language into those of another. Both of them are great languages and I've made web services in both so whatever one you pick will be a good choice.
As for which one to pick, although Rust is my favorite language, if you don't know it it'll take a while to learn. So for this project I'd say to go with Go because it's simpler and you really won't notice a performance difference unless you've got a huge amount of traffic.
That curve at one side and the numpad being merged withe the rest of it is a really nice look! I love the feel of box jades but they're just too loud for me unfortunately.
I love the concept! I recently wanted something just like this for a Flutter app I was making to parse a filename into a user defined format i.e.
2024-04-12.txtwith%Y-%M-%D.txtto{year: 2024, month: 04, day: 12}I'll certainty be using this the next time I need anything like that in Rust though.