diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..6f799f8
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1 @@
+migrations/atlas.sum binary
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
new file mode 100644
index 0000000..25f1449
--- /dev/null
+++ b/DEVELOPMENT.md
@@ -0,0 +1,10 @@
+# Development
+
+## Migrations
+
+If you make changes to the database schema, you need to generate a new migration.
+To do this you need to install [atlas](https://atlasgo.io/).
+
+```shell
+atlas migrate diff --env=local <migration name>
+```
diff --git a/atlas.hcl b/atlas.hcl
new file mode 100644
index 0000000..fffe3a0
--- /dev/null
+++ b/atlas.hcl
@@ -0,0 +1,21 @@
+data "external_schema" "peewee" {
+  program = [
+    "helpers/db_schema.sh"
+  ]
+}
+
+env "local" {
+  src = data.external_schema.peewee.url
+  dev = "sqlite://dev?mode=memory"
+  url = "sqlite://whoisdevices.db"
+
+  migration {
+    dir = "file://migrations"
+  }
+
+  format {
+    migrate {
+      diff = format("{{ sql .  \" \" }}")
+    }
+  }
+}
diff --git a/helpers/db_schema.sh b/helpers/db_schema.sh
new file mode 100755
index 0000000..64e3801
--- /dev/null
+++ b/helpers/db_schema.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+export PYTHONPATH=.
+
+poetry run python whois/db_schema.py
diff --git a/migrations/20240321230454_init.sql b/migrations/20240321230454_init.sql
new file mode 100644
index 0000000..cfbefea
--- /dev/null
+++ b/migrations/20240321230454_init.sql
@@ -0,0 +1,19 @@
+-- Create "device" table
+CREATE TABLE `device` (
+ `mac_address` char NOT NULL,
+ `hostname` varchar NULL,
+ `last_seen` datetime NOT NULL,
+ `user_id` integer NULL,
+ `flags` integer NULL,
+ PRIMARY KEY (`mac_address`),
+ CONSTRAINT `0` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`) ON UPDATE NO ACTION ON DELETE NO ACTION
+);
+-- Create "user" table
+CREATE TABLE `user` (
+ `id` integer NOT NULL,
+ `username` varchar NOT NULL,
+ `password` varchar NOT NULL,
+ `display_name` varchar NOT NULL,
+ `flags` integer NULL,
+ PRIMARY KEY (`id`)
+);
diff --git a/migrations/atlas.sum b/migrations/atlas.sum
new file mode 100644
index 0000000..31bdf80
--- /dev/null
+++ b/migrations/atlas.sum
@@ -0,0 +1,2 @@
+h1:EMRfUNLQLucjfPsImSG2fyQeY/BZRZ/LVYOtJAfHzf8=
+20240321230454_init.sql h1:+0SqLh3omTCq19IGAYbyECsORj2cicbwW9rOqVwh6VQ=
diff --git a/whois/db_schema.py b/whois/db_schema.py
new file mode 100644
index 0000000..b266146
--- /dev/null
+++ b/whois/db_schema.py
@@ -0,0 +1,14 @@
+import peewee
+from playhouse.reflection import print_table_sql
+
+from whois.database import Device, User
+
+
+def print_schema():
+    for model in [Device, User]:
+        print_table_sql(model)
+        print(";")
+
+
+if __name__ == "__main__":
+    print_schema()