Yes, dev instances are free. Just apply the same license key.

Call jsreport.init just once at the beginning of your application.
Store the jsreport instance.
And later use just jsreport.render.

Please elaborate more. I don't get what you are asking for.

Share the startup logs and render logs again. This time make just simple render request like this

{
  "template": {
    "content": "foo",
    "recipe": "html",
    "engine": "none"
  },
  "options": {
     "reports": { "save": true } 
  }
}

To better know what is going on you can also put a console.log here and here

Unfortunately, this message is all we get from chrome when it crashes.
It can be because of various reasons like exhausted resources, hw error or some particular html/css chrome doesn't like.
We can take a look if you will try to replicate the issue and upload the export for us or share link to the playground
https://playground.jsreport.net/

Ah ok, you got it wrong. You are now trying to apply an extension in custom jsreport script...
What you should do is:

1. npm install jsreport-aws-s3-storage
2. alter jsreport.config.json with

{
	"blobStorage": {  
		"provider": "aws-s3-storage"
	},
	"extensions": {
		"aws-s3-storage": {
			"accessKeyId": "...",
			"secretAccessKey": "...",
			"bucket": "...",
			"s3Options": {...}
		}
	}
}

In case you want to use some custom environment variables, apply them in the server.js

const jsreport = require('jsreport')({
  blobStorage: { provider: 'aws-s3-storage' },
  extensions: {
    'aws-s3-storage': {
      'accessKeyId': process.env.S3_SECRET_ACCESS_KEY,
      'secretAccessKey': process.env.S3_ACCESS_KEY_ID,
      'bucket': process.env.S3_BUCKET_NAME,
      's3Options': {}
    }
  }
})

if (process.env.JSREPORT_CLI) {
  module.exports = jsreport
} else {
  jsreport.init().then(() => {
    // running
  }).catch((e) => {
    // error during startup
    console.error(e.stack)
    process.exit(1)
  })
}

3. in your render request instruct reports extension to save the output into blob storage

   {
      "template": { "shortid" : "g1PyBkARK" },
      "data" : { ... },
      "options": {
          "reports": { "save": true }
      }
   }

https://jsreport.net/learn/reports
https://jsreport.net/learn/blob-storages

You originally posted some code that was not the default built in.

I mean this is not the built-in

 var jsreport_core = require('jsreport-core') ({ blobStorage: { provider: 'aws-s3-storage' } });
    jsreport_core.use(require('jsreport-aws-s3-storage')({
            "accessKeyId":  process.env.S3_SECRET_ACCESS_KEY,
			"secretAccessKey":  process.env.S3_ACCESS_KEY_ID,
			"bucket": process.env.S3_BUCKET_NAME,
			"s3Options": {}
    }));

Please share the whole init code. The config is fine, the problem will be probably in the init code

You use the latest jsreport-aws-s3-storage from npm, right?
Can you share also the jsreport.config.json content?

So far I cannot replicate this. Based on your logs, the extension gets disabled because blobStorage.provider !== aws-s3-storage

You can also use jsreport instance remotely. I mean run it on another vm if you have one, or in another linux based app service. Or even use https://jsreportonline.net
Instead of using jsreport.Local.