n8n template · self-hosted n8n

VNCNT Content Pipeline

One source in. LinkedIn, X, Instagram and blog drafts out, approved by you, scheduled in Buffer.

An n8n workflow template that turns one piece of content into drafts for several channels, and waits for your OK before anything goes to Buffer.

$69 one-time download · 14-day refund, email [email protected]

01 / Screens

A look inside

The VNCNT Content Pipeline workflow in n8n with an approval message
Overview of the Content Pipeline workflow in n8n
Drafts for each channel and the approval step
The approval email with Approve and Reject buttons
Publishing to Buffer and the run log
The error workflow alert
02 / How it works

What it does

  • n8n 2.x
  • Self-hosted
  • Gemini
  • Buffer
  • Telegram
  • Slack
  • Email
You give it

A source

A YouTube or social video link, an audio or video file URL, an article URL, or plain text.

1 / Transcript

Text from any source

Supadata for video links, Whisper for audio and video files, text extraction for articles, or your pasted text.

2 / Drafts

One Gemini call

Google Gemini by default (a free Google AI Studio key works). Output is checked against a strict JSON format and trimmed to each platform's length limit. You can swap in another chat model n8n supports by changing one node.

3 / Approval

Nothing posts until you say so

Approve and Reject buttons in Telegram, Slack or email (Resend or Gmail). Each link carries a one-time key, and requests expire after a time you set. You can switch approval off.

4 / Publish

Buffer, webhook or WordPress

One Buffer post per connected channel, as a Buffer draft or straight into your queue. Or send the approved pack to your own webhook. Optional WordPress draft.

5 / Log

One row per run

Airtable or Google Sheets, with token usage and estimated cost.

You get back

  • A LinkedIn post
  • An X thread
  • An Instagram caption
  • A blog post in Markdown (optional WordPress draft)
  • Clip timestamps with suggested hooks
  • One log row per run with token usage and estimated cost
03 / Details

Details that save you trouble

  • Every setting lives in one Config node. No API keys are stored in the workflow; they live in n8n credentials.
  • Sources it has already processed are skipped, so a retry does not create duplicate posts or extra costs.
  • API calls retry automatically, and one failing channel does not stop the others.
  • An included error workflow alerts you with the failing step and a suggested fix.
04 / Testing

What has been tested, and what has not

Tested on self-hosted n8n 2.44.6:

  • 24 scenario tests against mock APIs, covering every source type, all three approval channels, approve, reject, timeout, dedupe, partial failures and the error workflow.
  • Live runs with real Google Gemini drafting and real Buffer (posts created as drafts, checked, then deleted).
  • Email approval through Resend: the approval email reached a Gmail inbox (not spam), and its Approve link resumed the run.

Not tested yet

  • Approving from a phone. This needs your n8n on a public HTTPS address (WEBHOOK_URL). Our tests ran on a local instance.
  • The Gmail sending option (only Resend was tested live).
  • Corporate email security tools that open links automatically. These could click Approve for you. If your company uses one, use Telegram or Slack approval instead.
  • Live Supadata, Whisper, Slack, Telegram, Airtable, Google Sheets and WordPress accounts (tested against mocks only).
  • Buffer LinkedIn and Instagram channels, and Buffer queue mode.
  • n8n Cloud and n8n 1.x.
  • The free Lite edition was tested before the switch to Gemini and has not been re-run since.

The full test summary is in the download.

05 / Setup

What you need

Requirements

  • n8n 2.x, self-hosted. Built and tested on 2.44.6.
  • A public HTTPS address for your n8n so approval links work from your phone or inbox.
  • Your own accounts with the providers you choose. Their usage fees are billed to you by them.

Included files

  • content-pipeline-main.json
  • content-pipeline-error-handler.json
  • content-pipeline-lite.json (the free Lite edition)
  • README.md setup guide
  • TESTING.md test summary
  • LICENSE.txt
  • Screenshots
06 / License

License, refunds and support

This is a downloadable, self-serve software template, not a service. You import it into your own n8n and run it on your own accounts. VNCNT Labs does not host it and has no access to your data.

License: single account. Use it in your own n8n instances and in client instances you operate. Do not resell or redistribute the template files. Full terms are in LICENSE.txt.

Refunds: 14 days from purchase, whichever store you bought from. Email [email protected] with your order number. See the Refund Policy.

07 / Get it

VNCNT Content Pipeline

$69 · Same file on every store · Questions: [email protected]

VNCNT Content Pipeline is an independent product of VNCNT Labs, sold by FAMVII LLC, doing business as VNCNT Labs. n8n is a trademark of n8n GmbH. Google Gemini, Buffer, Telegram, Slack, Resend, Gmail, Supadata, Whisper, Airtable, Google Sheets, WordPress, LinkedIn, X and Instagram are trademarks of their owners. VNCNT Labs is not affiliated with or endorsed by any of them.