find lightning module relative to project directory

next.config.js

@@ -51,7 +51,9 @@ module.exports = withPlausibleProxy()({
     NEXT_PUBLIC_COMMIT_HASH: commitHash,
     NEXT_PUBLIC_LND_CONNECT_ADDRESS: process.env.LND_CONNECT_ADDRESS,
     NEXT_PUBLIC_ASSET_PREFIX: isProd ? 'https://a.stacker.news' : '',
-    LIGHTNING_MODULE_PATH: require.resolve('lightning')
+    // in prod, we build in /var/app/staging and then cp and deploy in /var/app/current
+    // so we need to resolve the relative path to the lightning module
+    LIGHTNING_MODULE_PATH: require('path').relative(process.cwd(), require.resolve('lightning'))
   },
   compress: false,
   experimental: {