diff --git a/.env.example b/.env.example
index ae9fbd4..1bf29ff 100644
--- a/.env.example
+++ b/.env.example
@@ -1,6 +1,7 @@
 # Runtime / app
 SCOREKO_APP_TITLE=Scoreko
 SCOREKO_APP_USER_MODEL_ID=com.scoreko.desktop
+SCOREKO_APP_USER_DATA_DIRECTORY=scoreko
 # SCOREKO_APP_ICON_PATH=static/icons/icon.ico
 
 # NodeCG
diff --git a/src/main/config/runtime-config.ts b/src/main/config/runtime-config.ts
index 260895d..ca80ff3 100644
--- a/src/main/config/runtime-config.ts
+++ b/src/main/config/runtime-config.ts
@@ -1,6 +1,7 @@
 export type AppRuntimeConfig = {
   title: string;
   userModelId: string;
+  userDataDirectoryName: string;
   iconPathOverride?: string;
   nodecgPort: string;
   bundleName: string;
@@ -19,6 +20,7 @@ export function getRuntimeConfig(): AppRuntimeConfig {
   return {
     title: getEnv("SCOREKO_APP_TITLE", "Scoreko"),
     userModelId: getEnv("SCOREKO_APP_USER_MODEL_ID", "com.scoreko.desktop"),
+    userDataDirectoryName: getEnv("SCOREKO_APP_USER_DATA_DIRECTORY", "scoreko"),
     iconPathOverride: getOptionalEnv("SCOREKO_APP_ICON_PATH"),
     nodecgPort: parseEnvPort("NODECG_PORT", "9090"),
     bundleName: getEnv("NODECG_BUNDLE_NAME", "scoreko-dev"),
diff --git a/src/main/main.ts b/src/main/main.ts
index 09ae77e..1a45778 100644
--- a/src/main/main.ts
+++ b/src/main/main.ts
@@ -9,6 +9,10 @@ import { createLoadingWindow, createMainWindow } from "./windows/window-factory"
 
 const appConfig = getRuntimeConfig();
 
+// Force a stable userData folder name; overridable via SCOREKO_APP_USER_DATA_DIRECTORY.
+app.setName(appConfig.title);
+app.setPath("userData", path.join(app.getPath("appData"), appConfig.userDataDirectoryName));
+
 const isDev = !app.isPackaged;
 const rootPath = isDev ? path.resolve(__dirname, "../..") : process.resourcesPath;
 const nodecgRootPath = path.resolve(rootPath, "lib", "nodecg");
@@ -96,8 +100,6 @@ function stopNodecgGracefully(): Promise<void> {
 }
 
 app.on("ready", () => {
-  app.setName(appConfig.title);
-
   if (process.platform === "win32") {
     app.setAppUserModelId(appConfig.userModelId);
   }
diff --git a/src/tests/icon-path.test.ts b/src/tests/icon-path.test.ts
index a5c909d..dc7a18c 100644
--- a/src/tests/icon-path.test.ts
+++ b/src/tests/icon-path.test.ts
@@ -9,6 +9,7 @@ function getBaseConfig(): AppRuntimeConfig {
   return {
     title: "Scoreko",
     userModelId: "com.scoreko.desktop",
+    userDataDirectoryName: "scoreko",
     nodecgPort: "9090",
     bundleName: "scoreko-dev",
     mainDashboardRoute: "dashboard/scoreko-dev/main.html?standalone=true",
diff --git a/src/tests/process-manager.test.ts b/src/tests/process-manager.test.ts
index 356b32d..bb9de81 100644
--- a/src/tests/process-manager.test.ts
+++ b/src/tests/process-manager.test.ts
@@ -21,6 +21,7 @@ function getBaseConfig(): AppRuntimeConfig {
   return {
     title: "Scoreko",
     userModelId: "com.scoreko.desktop",
+    userDataDirectoryName: "scoreko",
     nodecgPort: "9090",
     bundleName: "scoreko-dev",
     mainDashboardRoute: "dashboard/scoreko-dev/main.html?standalone=true",