diff --git a/config/runtime.exs b/config/runtime.exs
index 4e200df..6a7c95c 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -78,13 +78,21 @@ config :geo_therminator,
   api_device_reg_set_client_id: get_env("API_DEVICE_REG_SET_CLIENT_ID"),
   api_refresh: 10_000,
 
-  # Database directory for settings, relative to app HOME path
-  db_dir: get_env("DB_DIR", "db")
+  # Database directory for settings
+  db_dir:
+    Path.join(
+      if config_target() in [:ios, :android] do
+        System.get_env("HOME")
+      else
+        Application.app_dir(:geo_therminator, "priv")
+      end,
+      get_env("DB_DIR", "db")
+    )
 
 if config_env() == :dev do
   config :geo_therminator, GeoTherminatorWeb.Endpoint,
     http: [
-      0
+      port: 0
     ]
 end
 
diff --git a/lib/geo_therminator/application.ex b/lib/geo_therminator/application.ex
index 22553fc..c144925 100644
--- a/lib/geo_therminator/application.ex
+++ b/lib/geo_therminator/application.ex
@@ -7,7 +7,7 @@ defmodule GeoTherminator.Application do
 
   @impl true
   def start(_type, _args) do
-    db_dir = System.get_env("HOME") |> Path.join(Application.get_env(:geo_therminator, :db_dir))
+    db_dir = Application.get_env(:geo_therminator, :db_dir)
 
     children = [
       {CubDB, name: GeoTherminator.DB, data_dir: db_dir},