Improve Self host setup (#30)

* Add self host setup

* Improve blunders

* Move to bull mq

* More changes

* Add example code for sending test emails

apps/web/src/instrumentation.ts

@@ -0,0 +1,19 @@
+let initialized = false;
+
+/**
+ * Add things here to be executed during server startup.
+ *
+ * more details here: https://nextjs.org/docs/app/building-your-application/optimizing/instrumentation
+ */
+export async function register() {
+  // eslint-disable-next-line turbo/no-undeclared-env-vars
+  if (process.env.NEXT_RUNTIME === "nodejs" && !initialized) {
+    console.log("Registering instrumentation");
+    const { EmailQueueService } = await import(
+      "~/server/service/email-queue-service"
+    );
+
+    await EmailQueueService.init();
+    initialized = true;
+  }
+}