Automation library · Content

Auto-publish NASA APOD to LinkedIn with Gemini and Telegram

Started by a clock, and works across LinkedIn and Telegram. It hands the judgement calls to Gemini. 12 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: Gemini

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12 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 3Logic 4Service 4

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

  1. 1CronSchedule triggerStarts it
  2. 2Google Gemini 2.5 FlashLm Chat Google GeminiModel
  3. 3SettingsSetLogic
  4. 4Generate HashtagsChain LlmModel
  5. 5Generate Post TextChain LlmModel
  6. 6Get APODNasaService
  7. 7Create Final Post TextSetLogic
  8. 8Preserve BinaryMergeLogic
  9. 9Is Image?IfLogic
  10. 10Publish Image On LinkedInLinked InService
  11. 11Publish On LinkedInLinked InService
  12. 12Notify On TelegramTelegramService

How it's built

Starts on
A clock
Steps
12, with 1 branch
Size
Medium: a working afternoon
Connects to
LinkedIn, Telegram
Model
Gemini

Questions

What does it need to run?

An n8n account, plus your own LinkedIn and Telegram 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. 12 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 12 steps before you point it at anything that matters.