🌟 Initialize repo

src/env/server.mjs

@@ -0,0 +1,27 @@
+// @ts-check
+/**
+ * This file is included in `/next.config.mjs` which ensures the app isn't built with invalid env vars.
+ * It has to be a `.mjs`-file to be imported there.
+ */
+import { serverSchema, serverEnv } from "./schema.mjs";
+import { env as clientEnv, formatErrors } from "./client.mjs";
+
+const _serverEnv = serverSchema.safeParse(serverEnv);
+
+if (!_serverEnv.success) {
+  console.error(
+    "❌ Invalid environment variables:\n",
+    ...formatErrors(_serverEnv.error.format()),
+  );
+  throw new Error("Invalid environment variables");
+}
+
+for (let key of Object.keys(_serverEnv.data)) {
+  if (key.startsWith("NEXT_PUBLIC_")) {
+    console.warn("❌ You are exposing a server-side env-variable:", key);
+
+    throw new Error("You are exposing a server-side env-variable");
+  }
+}
+
+export const env = { ..._serverEnv.data, ...clientEnv };