@hydrooj/live2d (npm): Hydro - Next generation high performance online-judge platform - 新一代高效强大的信息学在线测评系统 (a.k.a. vj5)
Keywords: acm-icpc|cpp|hydro|java|mixed-judge|mongodb|node|noip|oi|oj|online-judge|onlinejudge|python|vijos|vj5