Custom Viz Plugins in Superset not working

I have been working on setting up a local development environment to build custom viz plugins in the superset. I used to follow the steps from https://preset.io/blog/2020-07-02-hello-world/. Successfully I can able to create the plugin-chart-hello-world. I have created the symbolic link and made changes in the superset-frontend(package.json and MainPreset.js) Plugin Not listed in the Superset Explore view. I am running the latest code from the GitHub superset repo, node v16.15.1, and npm 7.24.2. Please guide me to solve this.