diff --git a/README.md b/README.md
index f368e40..88e1f26 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,78 @@
 # restic-backup-docker
-A docker container to automate restic backups
+A docker container to automate [restic backups](https://restic.github.io/)
+
+This container runs restic backups in regular intervalls. 
+
+* Easy setup and maintanance
+* Support for different targets (currently: NFS, SFTP)
+* Support `restic mount` inside the container to browse the backup files
+
+
+# Test the container
+
+Clone this repository
+
+```
+git clone https://github.com/Lobaro/restic-backup-docker.git
+cd restic-backup-docker
+```
+
+Build the container. The container is named `backup-test`
+```
+./build.sh
+```
+
+Run the container.
+```
+./run.sh
+```
+
+This will run the container `backup-test` with the name  `backup-test`. Existing containers with that names are completly removed automatically.
+
+The container will backup `~/test-data` to a repository with password `test` at `~/test-repo` every minute. The repository is initialized automatically by the container.
+
+To enter your container execute
+
+```
+docker exec -ti backup-test /bin/sh
+```
+
+Now you can use restic [as documented](https://restic.readthedocs.io/en/stable/Manual/), e.g. try to run `restic snapshots` to list all your snapshots.
+
+# Customize the Container
+
+The container is setup by setting [environment variables](https://docs.docker.com/engine/reference/run/#/env-environment-variables) and [volumes](https://docs.docker.com/engine/reference/run/#volume-shared-filesystems).
+
+## Environment variables
+
+* `RESTIC_REPOSITORY` - the location of the restic repository. Default `/mnt/restic`
+* `RESTIC_PASSWORD` - the password for the restic repository. Will also be used for restic init during first start when the repository is not initialized.
+* `RESTIC_TAG` - Optional. To tag the images created by the container.
+* `NFS_TARGET` - Optional. If set the given NFS is mounted, i.e. `mount -o nolock -v ${NFS_TARGET} /mnt/restic`. `RESTIC_REPOSITORY` must remain it's default value!
+* `BACKUP_CRON` - A cron expression to run the backup. Default: `* */6 * * *` aka every 6 hours.
+
+## Volumes
+
+* `/data` - This is the data that gets backed up. Just mount it to wherever you want.
+
+## Set the hostname
+
+Since restic saves the hostname with each snapshot and the hostname of a docker container is it's id you might want to customize this by setting the hostname of the container to another value.
+
+Either by setting the [environment variable](https://docs.docker.com/engine/reference/run/#env-environment-variables) `HOSTNAME` or with `--hostname` in the [network settings](https://docs.docker.com/engine/reference/run/#network-settings)
+
+## Backup to SFTP
+
+Since restic needs a **password less login** to the SFTP server make sure you can do `sftp user@host` from inside the container. If you can do so from your host system, the easiest way is to just mount your `.ssh` folder conaining the authorized cert into the container by specifying `-v ~/.ssh:/root/.ssh` as argument for `docker run`.
+
+Now you can simply specify the restic repository to be an [SFTP repository](https://restic.readthedocs.io/en/stable/Manual/#create-an-sftp-repository).
+
+```
+-e "RESTIC_REPOSITORY=sftp:user@host:/tmp/backup"
+```
+
+# TODO
+
+* Support AWS backups
+* Support second cron that runs `restic check` regularly
+* Add testsetup based on docker-compose