Serve /public files in prod (build)

const videoPath = path.join(process.cwd(), '..','..','..', 'public', `${filename}.mp4`);

       const x = await downloadFromPresignedUrl(s3, videoPath)
           .then(() => console.log('Download completed'))
           .catch(err => console.error('Download failed', err));
       const compositionId = 'CaptionedVideo';
       const compPath = path.join(process.cwd(),'..','..','..', "src/demo-ai-app/index.ts")

       const bundleLocation = await bundle({
           // entryPoint: path.resolve('src/demo-ai-app/index.ts'),
           entryPoint: compPath,
           webpackOverride: (config) => config,
       });
       const allWords = output.segments.flatMap((segment: { words: any; }) => segment.words);
       const inputProps = {
           videoSrc: videoPath,
           src: `/public/${filename}.mp4`,
           s3: s3,
           words: allWords
       };
       const composition = await selectComposition({
           serveUrl: bundleLocation,
           id: compositionId,
           inputProps,
       });
       const captioned = path.join(process.cwd(), '..','..','..', 'public',`${filename}_captioned.mp4`);
       await renderMedia({
           composition,
           serveUrl: bundleLocation,
           codec: 'h264',
           outputLocation: `${captioned}`,
           inputProps,
       });