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+# How to create a bucket and get an Access key and Secret key
+
+## Scaleway (70GB free then €0.01/GB/month) --> Best choice
+
+Create an account at : https://console.scaleway.com/register or login if you already have one.
+
+Go to : https://console.scaleway.com/object-storage/buckets
+
+And then create a bucket with :
+
+Bucket name : unique identifier
+Region : Paris / Amsterdam / Warsaw
+Set bucket visibility : private
+
+Now head to : https://console.scaleway.com/project/credentials
+and generate a new API key :
+Fill a little description for your memory sake and just copy and paste the access key and secret key in your addon configuration. (Beware, your secret key will only be shown once)
+
+## AWS (No free tiers but and depending on which region, but for example in Frankfurt : $0.0245 per GB)
+
+Create an AWS account or login at :https://console.aws.amazon.com/
+
+Then go to : https://s3.console.aws.amazon.com/s3/ and click create bucket :
+
+Bucket Name : unique bucket name
+Region : Region of your choice
+Let ticket "Block public access"
+Versionning : Disable (if enable, you will not be able to delete older backups without tricky API calls)
+Tags : As your will
+Default Encryption : You can disable it if you encrypt in client side with GPG (better in term of privacy)
+
+Then head to : https://console.aws.amazon.com/iam/home?#/policies
+
+Click create policy, go on json tab and paste :
+
+```json
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Sid": "VisualEditor0",
+            "Effect": "Allow",
+            "Action": [
+                "s3:PutObject",
+                "s3:GetObject",
+                "s3:ListBucketMultipartUploads",
+                "s3:AbortMultipartUpload",
+                "s3:CreateBucket",
+                "s3:ListBucket",
+                "s3:DeleteObject",
+                "s3:ListMultipartUploadParts"
+            ],
+            "Resource": [
+                "arn:aws:s3:::your-bucket-name",
+                "arn:aws:s3:::your-bucket-name/*"
+            ]
+        },
+        {
+            "Sid": "VisualEditor1",
+            "Effect": "Allow",
+            "Action": "s3:ListAllMyBuckets",
+            "Resource": "*"
+        }
+    ]
+}
+```
+
+Then create a group at : https://console.aws.amazon.com/iam/home?#/groups with the previously created policy
+
+Then create a user attached to the previously created group. Here you will find the access key and secret key. *Note the name of the created user*
+
+Making these IAM configuration will ensure that if your access key and secret key are stolen, the only ressource it can access is this s3 bucket.
+
+In the addon configuration fill your "accessKey" and "secretKey" and the s3 bucket URL followed by the previously created user name.
+
+Like this : s3://s3.region-name.amazonaws.com/bucket-name/created-user-name
+
+## Backblaze B2 (10GB free then $0.005 /GB/month and $0.01 /GB/download)
+
+Create Backblaze account with B2 enabled
+
+First, you have to create a Backblaze account and enable B2. If you already have a Backblaze account, login, visit "My Settings" and enable "B2 Cloud Storage" on your account under "Enabled Products" 
+Second, create an Private bucket in your B2 account.
+
+Third, retrieve your Master Application Key and KeyID. 
+
+Use the keyId and the Master application key to build the bucket url b2://[accessKey]:[secretKey]@[B2 bucket name].
+
+1. Start the add-on.
+2. Check the add-on log output to see the result.
+
+If the log doesn't end with an error, the add-on has successfully
+accessed your git repository. Examples of logs you might see if
+there were no errors are: `[Info] Nothing has changed.`,
+`[Info] Something has changed, checking Home-Assistant config...`,
+or `[Info] Local configuration has changed. Restart required.`.
+
+If you made it this far, you might want to let the add-on automatically
+check for updates by setting the `active` field (a subfield of `repeat`)
+to `true` and turning on "Start on boot."
+
+# How to generate GPG key (Optionnal) to encrypt locally before upload
+
+```shell
+gpg --gen-key
+```
+
+You will be asked a series of questions to configure your keys:
+
+Type of key. Select (1) RSA and RSA (default).
+Size of key. Pressing ENTER will confirm the default size of 2048 bits.
+Key expiration date. By entering 1y, we will create a key that expires after one year.
+Confirm your choices. You can do this by entering y.
+User ID/Real name. Enter your name.
+Email address. Enter your email address.
+Comment. Here, you can enter an optional comment that will be visible with your signature.
+Change (N)ame, ©omment, (E)mail or (O)kay/(Q)uit? Type O if you are ready to proceed.
+Enter passphrase. You will be asked to enter a passphrase here. Be sure to take note of this passphrase. We will refer back to it throughout the rest of this tutorial as your-GPG-key-passphrase.
+
+```bash
+Output
+...
+gpg: /home/sammy/.gnupg/trustdb.gpg: trustdb created
+gpg: key your-GPG-public-key-id marked as ultimately trusted
+public and secret key created and signed.
+...
+```
+
+your-GPG-public-key-id is the GPGFingerprint to put in your configuration
+and the GPGPassphrase is the password you typed during the key generation
+
+
+--> See full details here : https://www.digitalocean.com/community/tutorials/how-to-use-duplicity-with-gpg-to-back-up-data-to-digitalocean-spaces
+