There are 2 repositories under bandwidth-limiting topic.
A Quality of Experience and Smart Queue Management system for ISPs. Leverage CAKE to improve network responsiveness, enforce bandwidth plans, and reduce bufferbloat.
NetLimiter-like bandwidth limiting and QoS for Linux
Go Traffic Shaper
A Node.js and Deno transform stream for throttling bandwidth
A Node.js script to bypass hosting's network bandwidth limits on cloud servers.
Basic to Advanced features of MikroTik router would be executed here.