AcmeFetch is free software. Just download it and get started. Follow the instructions in the README.
If you have a question, head over to the AcmeFetch section on serverfault.com and tag your question with 'AcmeFetch'.
If you find a problem with AcmeFetch, please open an Issue on GitHub.
And if you have a contribution, please fork us on GitHub, create a branch and send a pull request.
If you need extra help or customization, please feel free to get in touch directly with use here at OETIKER+PARTNER.