Here are some plugins that could help you build out your own or serve as a reference point:
- Plugin Template https://github.com/Joehoel/flow-launcher-plugin-template-node
- Discord Timestamps https://github.com/Jessuhh/discord-timestamps-flowlauncher-plugin
- NPM Search https://github.com/gabrielcarloto/flow-search-npm