Start a tmate session inside a GitHub Actions runner.

Something like this:

• Modify the config
• git commit -a --amend --no-edit && git push
• Go to https://github.com/ingydotnet/gha-tmate-runner/actions
  • Open the log view
  • Wait for the ssh command to print
  • eg: ssh [email protected]
  • Copy the command
• Paste and run the command in a terminal
• Now I'm shelled into the GHA container/VM
• Play around
• Exit the shell
• The GHA session ends

Sometimes the session becomes broken while using it; especially when using the Windows CMD shell. If this happens, click the "Cancel workflow" button in the GHA web page.

Remember you only get so many minutes a month to use GHA for free, so be mindful not to leave the tmate running.