diff --git a/backend/projects_registry.py b/backend/projects_registry.py
new file mode 100644
index 0000000..8833da4
--- /dev/null
+++ b/backend/projects_registry.py
@@ -0,0 +1,31 @@
+from pathlib import Path
+import json
+import os
+
+DATA_DIR = Path(os.getenv('DEVCONSOLE_DATA_DIR', '/var/lib/devconsole'))
+REGISTRY_FILE = DATA_DIR / 'projects_registry.json'
+
+
+def load_projects():
+    if not REGISTRY_FILE.exists():
+        return []
+
+    try:
+        return json.loads(REGISTRY_FILE.read_text(encoding='utf-8'))
+    except Exception:
+        return []
+
+
+def save_project(project: dict):
+    projects = load_projects()
+
+    existing = [p for p in projects if p.get('repo_url') != project.get('repo_url')]
+    existing.append(project)
+
+    REGISTRY_FILE.parent.mkdir(parents=True, exist_ok=True)
+    REGISTRY_FILE.write_text(
+        json.dumps(existing, ensure_ascii=False, indent=2),
+        encoding='utf-8'
+    )
+
+    return existing