Write a controller, name the interactions to send it, and run it: MeoCord 4.2's own dispatch handles them, with its guards, pipes, cooldowns and filters, and the playground shows what the handlers answered. It all runs in your browser.
Steps separated by ;, such as /ping, /settings notify email enabled:true, button counter/1, select pick a,b, userselect assign/7 13,14, modal feedback about='bugs', message !ping, reaction ⭐ on 'nice post' or event guildMemberAdd. Ctrl+Enter or ⌘+Enter runs.