diff --git a/README.md b/README.md
index c0e4e31..e5253cb 100644
--- a/README.md
+++ b/README.md
@@ -15,8 +15,8 @@ You can put these in `.env` file or pass them as environment variables.
   Required.
 - `SD_API_URL` - URL to Stable Diffusion API. Only used on first run. Default:
   `http://127.0.0.1:7860/`
-- `TG_ADMIN_USERS` - Comma separated list of usernames of users that can use admin commands. Only
-  used on first run. Optional.
+- `TG_ADMIN_USERNAMES` - Comma separated list of usernames of users that can use admin commands.
+  Only used on first run. Optional.
 
 ## Running
 
@@ -25,9 +25,9 @@ You can put these in `.env` file or pass them as environment variables.
 
 ## Codegen
 
-The Stable Diffusion API in `sd/sdApi.ts` is auto-generated. To regenerate it, first start your SD
+The Stable Diffusion API in `app/sdApi.ts` is auto-generated. To regenerate it, first start your SD
 WebUI with `--nowebui --api`, and then run:
 
 ```sh
-deno run npm:openapi-typescript http://localhost:7861/openapi.json -o sd/sdApi.ts
+deno run npm:openapi-typescript http://localhost:7861/openapi.json -o app/sdApi.ts
 ```
diff --git a/app/config.ts b/app/config.ts
index c60c396..fdf9a15 100644
--- a/app/config.ts
+++ b/app/config.ts
@@ -50,12 +50,18 @@ export async function getConfig(): Promise<Config> {
   const configEntry = await db.get<Config>(["config"]);
   const config = configEntry?.value;
   return {
-    adminUsernames: config?.adminUsernames ?? [],
+    adminUsernames: config?.adminUsernames ?? Deno.env.get("TG_ADMIN_USERNAMES")?.split(",") ?? [],
     pausedReason: config?.pausedReason ?? null,
     maxUserJobs: config?.maxUserJobs ?? Infinity,
     maxJobs: config?.maxJobs ?? Infinity,
     defaultParams: config?.defaultParams ?? {},
-    sdInstances: config?.sdInstances ?? {},
+    sdInstances: config?.sdInstances ??
+      {
+        "local": {
+          api: { url: Deno.env.get("SD_API_URL") ?? "http://127.0.0.1:7860/" },
+          maxResolution: 1024 * 1024,
+        },
+      },
   };
 }