It appears that the repository has undergone several changes and renamings:

backend/node_modules/yaml/bin.mjs

@@ -1,11 +0,0 @@
-#!/usr/bin/env node
-
-import { UserError, cli, help } from './dist/cli.mjs'
-
-cli(process.stdin, error => {
-  if (error instanceof UserError) {
-    if (error.code === UserError.ARGS) console.error(`${help}\n`)
-    console.error(error.message)
-    process.exitCode = error.code
-  } else if (error) throw error
-})