refactor: improve typing

apps/server/src/utils/__tests__/parserUtils.test.ts

@@ -30,7 +30,7 @@ describe('mergeObject()', () => {
   test('it handles falsy values', () => {
     const a = {
       first: 'yes',
-      second: 'yes',
+      second: 'yes' as string | null,
       third: 'yes',
     };
     const b = {

apps/server/src/utils/networkInterfaces.ts

@@ -9,7 +9,11 @@ export function getNetworkInterfaces(): { name: string; address: string }[] {
   const results: { name: string; address: string }[] = [];
 
   for (const name of Object.keys(nets)) {
-    for (const net of nets[name]) {
+    const netObjects = nets[name];
+    if (!netObjects) {
+      continue;
+    }
+    for (const net of netObjects) {
       // Skip over non-IPv4 and internal (i.e. 127.0.0.1) addresses
       if (net.family === 'IPv4' && !net.internal) {
         results.push({

apps/server/src/utils/parserUtils.ts

@@ -53,7 +53,7 @@ export function mergeObject<T extends object>(a: T, b: Partial<T>): T {
     }
 
     if (typeof bValue === 'object' && bValue !== null && typeof aValue === 'object' && aValue !== null) {
-      // @ts-expect-error -- library side, ignore for now
+      // @ts-expect-error -- not sure how to type this
       merged[key] = deepmerge(aValue, bValue);
     } else if (bValue !== undefined) {
       merged[key] = bValue;