diff --git a/README.md b/README.md
index 7f887c0..3c22e8d 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,58 @@
 
 This Delta Chat bot is useful if your device is not always online.
 It allows you to generate and send out verification QR codes.
+
+You can send a group join QR code (only as text for now, so "OPENPGP4FPR:....")
+to the bot,
+to make it listen to join requests
+even if your main device is offline.
+
+## Install
+
+First, you need to set it up on a linux machine
+that's always running and online (e.g. a server).
+
+For this, go to the Delta Chat settings
+and export a backup.
+The bot will need it to access your account
+and be able to verify contacts.
+Copy it to the server with scp or rsync or so.
+
+Then login to the server via SSH
+and install the bot from this repository:
+
+```
+git clone https://git.0x90.space/missytake/verificationbot
+cd verificationbot
+python3 -m venv env
+. env/bin/activate
+pip install -e .
+```
+
+Then you need to initialize the bot
+with the backup file you copied to the server:
+
+```
+verificationbot init --from-backup ../delta-chat-backup-*.tar
+```
+
+This will create the "verification bot control group",
+with only you as a member.
+If that doesn't happen,
+it didn't work.
+
+If the group was created,
+you can run the bot:
+
+```
+verificationbot run
+```
+
+## Usage
+
+To make the bot listen for a group join QR code,
+copy-paste the text of the QR code
+and send it to the "verification bot control group".
+
+The bot will reply whether it successfully activated the QR code.
+
diff --git a/setup.cfg b/setup.cfg
index b93ff76..70c765d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,7 +3,7 @@ name = verificationbot
 version = 0.0.1
 author = missytake
 author_email = missytake@systemli.org
-description = A Delta Chat bot to generate and send out verification QR codes
+description = A Delta Chat bot to use group join QR codes if you are offline often.
 long_description = file: README.md
 long_description_content_type = text/markdown
 url = https://git.0x90.space/missytake/verifcationbot