diff --git a/gdn-app/src/stores/repos.ts b/gdn-app/src/stores/repos.ts
index e4bb757..d2a3a04 100644
--- a/gdn-app/src/stores/repos.ts
+++ b/gdn-app/src/stores/repos.ts
@@ -40,7 +40,8 @@ export const useReposStore = defineStore("repos", () => {
     }
   }
 
-  function selectRepo(id: string) {
+  function selectRepo(id: string | undefined) {
+    if (id === undefined) return;
     if (repos.value.get(id) === undefined) return;
     selectedRepoId.value = id;
   }
diff --git a/gdn-app/tsconfig.json b/gdn-app/tsconfig.json
index 0c5a71e..d5f5a21 100644
--- a/gdn-app/tsconfig.json
+++ b/gdn-app/tsconfig.json
@@ -1,28 +1,37 @@
+// Keys grouped according to
+// https://www.typescriptlang.org/tsconfig/
 {
   "compilerOptions": {
-    "target": "ES2020",
-    "useDefineForClassFields": true,
-    "module": "ESNext",
-    "lib": ["ES2020", "DOM", "DOM.Iterable"],
-    "skipLibCheck": true,
-
-    /* Bundler mode */
-    "moduleResolution": "bundler",
-    "allowImportingTsExtensions": true,
-    "resolveJsonModule": true,
-    "isolatedModules": true,
-    "noEmit": true,
-    "jsx": "preserve",
-
-    /* Linting */
-    "strict": true,
+    // Type Checking
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noUncheckedIndexedAccess": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
-    "noFallthroughCasesInSwitch": true,
+    "strict": true,
 
-    "paths": {
-      "@/*": ["./src/*"]
-    }
+    // Modules
+    "allowImportingTsExtensions": true,
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "paths": { "@/*": ["./src/*"] },
+    "resolveJsonModule": true,
+
+    // Emit
+    "noEmit": true,
+
+    // Interop Constraints
+    "isolatedModules": true,
+
+    // Language and Environment
+    "jsx": "preserve",
+    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "target": "ES2020",
+    "useDefineForClassFields": true,
+
+    // Completeness
+    "skipLibCheck": true
   },
   "include": ["src/**/*.ts", "src/**/*.d.ts", "src/**/*.tsx", "src/**/*.vue"],
   "references": [{ "path": "./tsconfig.node.json" }]