Create tokio runtime for async setup tasks

src/server/main.rs

@@ -1,3 +1,5 @@
+use tokio::runtime::Runtime;
+
 use crate::App;
 use crate::server::config;
 use crate::util::error::{Contextualize, Error, Result};
@@ -12,6 +14,14 @@ pub fn main() -> Result<()> {
         .map_err(|e| Error::message_here(e.to_string()))
         .err_context("Failed to load config")?;
 
+    // `dioxus::launch` creates its own runtime, and starting a runtime inside of a runtime isn't
+    // allowed. Therefore, this function can't be made async, and we must manually create a runtime
+    // for any async setup tasks
+    tracing::debug!("Starting setup runtime...");
+    let setup_rt = Runtime::new()
+        .map_err(|e| Error::message_here(e.to_string()))
+        .err_context("Failed to create tokio runtime for server setup")?;
+
     tracing::info!("Setup complete, launching web server...");
     dioxus::launch(App);