Where to upload signing request

i dont understand the point theres a software to make automated config but on website it is written that the software is beta and not to use for production so i can create my own signing request by openssl but no idea where to upload it and get my certificate

Have a look at the list of client implementations if you don’t want to run the official one.

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CSR’s can be handeled by the --csr option of the official client.

i mean ccant i just get the certificate by email like normal ssl providers do and the rest, configure by myself

Yes, that is correct, you have to use a client speaking the ACME protocol to submit your CSR and download the certificate.