Hi! Tried many different variants to start. Get

(node:26434) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use node --trace-warnings ... to show where the warning was created)
/Users/admin/Downloads/Backend-Delivery-App-Flutter-main/src/index.js:1
import http from './App';
^^^^^^

SyntaxError: Cannot use import statement outside a module

--- or ----

admin@Admins-MacBook-Air Backend-Delivery-App-Flutter-main % ./node_modules/.bin/babel-node src/index.js
internal/process/esm_loader.js:74
internalBinding('errors').triggerUncaughtException(
^

Error [ERR_MODULE_NOT_FOUND]: Cannot find module '/Users/admin/Downloads/Backend-Delivery-App-Flutter-main/src/App' imported from /Users/admin/Downloads/Backend-Delivery-App-Flutter-main/src/index.js
at finalizeResolution (internal/modules/esm/resolve.js:285:11)
at moduleResolve (internal/modules/esm/resolve.js:708:10)
at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:819:11)
at Loader.resolve (internal/modules/esm/loader.js:89:40)
at Loader.getModuleJob (internal/modules/esm/loader.js:242:28)
at ModuleWrap. (internal/modules/esm/module_job.js:73:40)
at link (internal/modules/esm/module_job.js:72:36) {
code: 'ERR_MODULE_NOT_FOUND'
}

Could you please help me?

can you share how to create and start server for beginners?