It was a great opportunity for hardening my skills and learning how production system works, but recently I lost my motivation toward maintaining this code. I thought it will be better to make official statement now for the good.
Server (that you are running) will still function and its source code will preserved here even after this notice. However, issues and pull requests will not be closed and resolved. Future version of (supported) game might not work.
I'd like to recommend using [ARTEMiS](https://gitea.tendokyu.moe/Hay1tsme/artemis). It's more robust and easily expandable using power of Python language. Also, maintainers are active and nice ;)