Automation library · Content

Create AI Instagram carousel posts with Gemini and Slack

Started by a clock, and works across Google Sheets and Slack. It hands the judgement calls to Gemini. 9 steps: a working afternoon to understand properly.

MediumCalls a model: Gemini

9 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 2Logic 3Service 3

The steps in the order they run, from what starts it.

  1. 1Daily at NoonSchedule triggerStarts it
  2. 2Get row(s) in sheetGoogle SheetsService
  3. 3Code in JavaScriptCodeLogic
  4. 4Generate Carousel ContentGoogle GeminiModel
  5. 5Build Slide Image PromptsCodeLogic
  6. 6Generate Slide ImagesGoogle GeminiModel
  7. 7Prepare Slack PackageCodeLogic
  8. 8Upload Slides to SlackSlackService
  9. 9Append row in sheetGoogle SheetsService

How it's built

Starts on
A clock
Steps
9
Size
Medium: a working afternoon
Connects to
Google Sheets, Slack
Model
Gemini

Questions

What does it need to run?

An n8n account, plus your own Google Sheets and Slack accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 9 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 9 steps before you point it at anything that matters.