diff --git a/api/download_subreddit_images.go b/api/download_subreddit_images.go
new file mode 100644
index 0000000..a5625ad
--- /dev/null
+++ b/api/download_subreddit_images.go
@@ -0,0 +1,12 @@
+package api
+
+import "context"
+
+type DownloadSubredditParams struct {
+	Countback int
+	NSFW      bool
+}
+
+func (api *API) DownloadSubredditImages(ctx context.Context, subredditName string, params DownloadSubredditParams) error {
+	return nil
+}
diff --git a/db/migrations/20240406220949_create_subreddits_table.sql b/db/migrations/20240406220949_create_subreddits_table.sql
index fed1c6f..4582d74 100644
--- a/db/migrations/20240406220949_create_subreddits_table.sql
+++ b/db/migrations/20240406220949_create_subreddits_table.sql
@@ -3,8 +3,9 @@
 CREATE TABLE subreddits (
     id INTEGER PRIMARY KEY,
     name VARCHAR(30) NOT NULL,
-    subtype INT NOT NULL,
-    schedule VARCHAR(20) NOT NULL,
+    subtype INT NOT NULL DEFAULT 0,
+    schedule VARCHAR(20) NOT NULL DEFAULT '0 0 * * *',
+    countback INT NOT NULL DEFAULT 100,
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
 );
diff --git a/db/migrations/20240409221254_create_table_device.sql b/db/migrations/20240409221254_create_table_device.sql
new file mode 100644
index 0000000..f90da2a
--- /dev/null
+++ b/db/migrations/20240409221254_create_table_device.sql
@@ -0,0 +1,29 @@
+-- +goose Up
+-- +goose StatementBegin
+CREATE TABLE devices(
+    id INTEGER PRIMARY KEY,
+    name VARCHAR(255) NOT NULL,
+    resolution_x DOUBLE NOT NULL,
+    resolution_y DOUBLE NOT NULL,
+    aspect_ratio_tolerance DOUBLE NOT NULL default 0.2,
+    min_x INTEGER NOT NULL DEFAULT 0,
+    min_y INTEGER NOT NULL DEFAULT 0,
+    max_x INTEGER NOT NULL DEFAULT 0,
+    max_y INTEGER NOT NULL DEFAULT 0,
+    nsfw INTEGER NOT NULL DEFAULT 0,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL
+);
+
+CREATE INDEX idx_devices_name ON devices(name);
+
+CREATE TRIGGER update_devices_timestamp AFTER UPDATE ON devices FOR EACH ROW
+BEGIN
+    UPDATE devices SET updated_at = CURRENT_TIMESTAMP WHERE id = old.id;
+END;
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE IF EXISTS devices;
+-- +goose StatementEnd
diff --git a/db/migrations/20240409162347_create_images_table.sql b/db/migrations/20240409222145_create_images_table.sql
similarity index 81%
rename from db/migrations/20240409162347_create_images_table.sql
rename to db/migrations/20240409222145_create_images_table.sql
index b334dc2..238467d 100644
--- a/db/migrations/20240409162347_create_images_table.sql
+++ b/db/migrations/20240409222145_create_images_table.sql
@@ -3,6 +3,7 @@
 CREATE TABLE images(
     id INTEGER PRIMARY KEY,
     subreddit_id INTEGER NOT NULL,
+    device_id INTEGER NOT NULL,
     title VARCHAR(255) NOT NULL,
     post_id VARCHAR(50) NOT NULL,
     poster VARCHAR(50) NOT NULL,
@@ -10,11 +11,16 @@ CREATE TABLE images(
     thumbnail_relative_path VARCHAR(255) NOT NULL DEFAULT '',
     image_original_url VARCHAR(255) NOT NULL,
     thumbnail_original_url VARCHAR(255) NOT NULL DEFAULT '',
+    nsfw INTEGER NOT NULL DEFAULT 0,
     created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
     CONSTRAINT fk_subreddit_id
         FOREIGN KEY (subreddit_id)
         REFERENCES subreddits(id)
+        ON DELETE CASCADE,
+    CONSTRAINT fk_devices_id
+        FOREIGN KEY (device_id)
+        REFERENCES devices(id)
         ON DELETE CASCADE
 );
 
@@ -24,6 +30,7 @@ BEGIN
 END;
 
 CREATE INDEX idx_subreddit_id ON images(subreddit_id);
+CREATE INDEX idx_nsfw ON images(nsfw);
 -- +goose StatementEnd
 
 -- +goose Down