feeless VS jNano

If you care that much about it, when you generate a seed you can divine a private key from your seed at an account index, and import the private key instead of a seed. By doing that, you will only have access to one address at the specified index height. You can use tools like feeless to help you do this.

that's the Rust node https://github.com/feeless/feeless

Nano is an open source project, and anyone can contribute to it, but yeah at this point I think it is mostly the NF that does. That will hopefully change overtime as more people get involved with Nano and have an incentive to contribute. I know I would like to contribute at some point when I have time. Additionally, someone is working on creating an entirely separate Nano node: https://github.com/feeless/feeless Things like this are great for decentralization, and I expect we'll see more of it as time goes on.

Although it needs some technical knowledge, my feeless project (https://github.com/feeless/feeless) creates a binary that can generate keys, phrases, into addresses,etc. all offline once you have the binary on an air gapped computer. Let me know if you want more info.

There is one in C#, but 3 years old. https://github.com/feeless/feeless/#other-implementations

If you already know Java and can develop on Minecraft there is a Java library for Nano https://github.com/koczadly/jNano - I'm sure a plugin to use nano on a server for either a faucet type thing or server shop would go down well.