Thanks ethomson, i must recognice im a bit newish with actions.

used GITHUB_TOKEN here

What is "used".
Where is "here".

I have been looking around for 1h now.

This is what i need:

To create an effective CI flow.
When i push changes to my repository, my workflow crosscompiles the code creating .bin files.
After those output files are created i need to push those files to the same repo only once.
This results in an endless push-workflow-push loop.

peter has a very complete but complex answer, ill study it and get back with results
https://stackoverflow.com/questions/57921401/push-to-origin-from-github-action/58393457#58393457

This would be a test yaml file creating the unwanted loop

name: testing_workflow
on: [push]
jobs:
  echo:
    runs-on: self-hosted
    steps:
      - uses: actions/checkout@v3
      - name: modifies log.txt
        run: echo Fran perea quien lo lea $(date) >log.txt
      - name: commits and pushes changes
        run: |
          git add .
          git commit -m "report autogenerated $(date)"
          git push