trying another approach because of EXDEV: cross-device link not permitted

src/enhanceVideo.mts

@@ -23,7 +23,12 @@ export const enhanceVideo = async (fileName: string): Promise<string> => {
       .videoFilters('noise=c0s=10:c0f=t+u')
       .save(tmpFilePath)
       .on('end', async () => {
-        await fs.promises.rename(tmpFilePath, filePath)
+        await fs.promises.copyFile(tmpFilePath, filePath)
+        try {
+          await fs.promises.unlink(tmpFilePath)
+        } catch (err) {
+          console.log('failed to cleanup (no big deal..)')
+        }
 
         resolve(fileName)
       })

src/keepVideo.mts

@@ -7,7 +7,12 @@ export const keepVideo = async (fileName: string): Promise<string> => {
   const sourceFilePath = path.join(tmpDir, fileName)
   const targetFilePath = path.join(process.env.WEBTV_VIDEO_STORAGE_PATH_NEXT, fileName)
 
-  await fs.promises.rename(sourceFilePath, targetFilePath)
+  await fs.promises.copyFile(sourceFilePath, targetFilePath)
+  try {
+    await fs.promises.unlink(sourceFilePath)
+  } catch (err) {
+    console.log('failed to cleanup (no big deal..)')
+  }
 
   return targetFilePath
 }

src/upscaleVideo.mts

@@ -64,7 +64,12 @@ export async function upscaleVideo(fileName: string, prompt: string) {
   const tmpFilePath = path.join(tmpDir, tmpFileName)
   const filePath = path.join(tmpDir, fileName)
 
-  await fs.promises.rename(tmpFilePath, filePath)
+  await fs.promises.copyFile(tmpFilePath, filePath)
+  try {
+    await fs.promises.unlink(tmpFilePath)
+  } catch (err) {
+    console.log('failed to cleanup (no big deal..)')
+  }
 
   return fileName
 }