diff --git a/crates/base/src/js_worker.rs b/crates/base/src/js_worker.rs
index 2f1169ecd..b5c9a549e 100644
--- a/crates/base/src/js_worker.rs
+++ b/crates/base/src/js_worker.rs
@@ -158,13 +158,6 @@ impl MainWorker {
         stream: UnixStream,
         shutdown_tx: oneshot::Sender<()>,
     ) -> Result<(), Error> {
-        // set bootstrap options
-        // TODO: Migrate this to `supacore`
-        let script = format!(r#"globalThis.__build_target = "{}""#, env!("TARGET"));
-        self.js_runtime
-            .execute_script::<String>(located_script_name!(), script.into())
-            .expect("Failed to execute bootstrap script");
-
         let (unix_stream_tx, unix_stream_rx) = mpsc::unbounded_channel::<UnixStream>();
         if let Err(e) = unix_stream_tx.send(stream) {
             bail!(e)
@@ -329,12 +322,6 @@ impl UserWorker {
             });
 
         // set bootstrap options
-        // TODO: Move to `supacore`
-        let script = format!("globalThis.__build_target = \"{}\"", env!("TARGET"));
-        self.js_runtime
-            .execute_script::<String>(&located_script_name!(), script.into())
-            .expect("Failed to execute bootstrap script");
-
         let (unix_stream_tx, unix_stream_rx) = mpsc::unbounded_channel::<UnixStream>();
         if let Err(e) = unix_stream_tx.send(stream) {
             bail!(e)
diff --git a/crates/sb_core/build.rs b/crates/sb_core/build.rs
new file mode 100644
index 000000000..f39d6d2f4
--- /dev/null
+++ b/crates/sb_core/build.rs
@@ -0,0 +1,7 @@
+// build script
+use std::env;
+
+fn main() {
+    println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
+    println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap());
+}
diff --git a/crates/sb_core/js/bootstrap.js b/crates/sb_core/js/bootstrap.js
index 03845a319..789059bd8 100644
--- a/crates/sb_core/js/bootstrap.js
+++ b/crates/sb_core/js/bootstrap.js
@@ -22,6 +22,7 @@ import * as tls from "ext:deno_net/02_tls.js";
 import * as net from "ext:deno_net/01_net.js";
 import * as response from "ext:deno_fetch/23_response.js";
 import * as request from "ext:deno_fetch/23_request.js";
+import * as globalInterfaces from "ext:deno_web/04_global_interfaces.js";
 import { SUPABASE_USER_WORKERS } from "ext:sb_user_workers/user_workers.js";
 import { SUPABASE_ENV } from "ext:sb_env/env.js";
 
@@ -537,6 +538,15 @@ delete globalThis.bootstrap;
 
 ObjectDefineProperties(globalThis, globalScope);
 
+const globalProperties = {
+    Window: globalInterfaces.windowConstructorDescriptor,
+    window: getterOnly(() => globalThis),
+    self: getterOnly(() => globalThis),
+};
+
+ObjectDefineProperties(globalThis, globalProperties);
+ObjectSetPrototypeOf(globalThis, Window.prototype);
+
 // TODO: figure out if this is needed
 globalThis[webidl.brand] = webidl.brand;
 
@@ -556,9 +566,8 @@ runtimeStart({
   tsVersion: "NA",
   noColor: true,
   isTty: false,
-  target: "supabase",
+  target: ops.op_build_target(),
 });
-delete globalThis.__build_target;
 
 // set these overrides after runtimeStart
 ObjectDefineProperties(Deno, {
diff --git a/crates/sb_core/runtime.rs b/crates/sb_core/runtime.rs
index d7f27c703..984d8329e 100644
--- a/crates/sb_core/runtime.rs
+++ b/crates/sb_core/runtime.rs
@@ -10,7 +10,7 @@ use std::path::Path;
 #[op]
 fn op_main_module(state: &mut OpState) -> Result<String, AnyError> {
     let main = state.borrow::<ModuleSpecifier>().to_string();
-    let main_url = deno_core::resolve_url_or_path(&main, Path::new("./steve-jobs"))?;
+    let main_url = deno_core::resolve_url_or_path(&main, std::env::current_dir()?.as_path())?;
     if main_url.scheme() == "file" {
         let main_path = std::env::current_dir()
             .context("Failed to get current working directory")?
@@ -24,8 +24,14 @@ fn op_main_module(state: &mut OpState) -> Result<String, AnyError> {
     Ok(main)
 }
 
+#[op]
+fn op_build_target(_state: &mut OpState) -> String {
+    let target = env!("TARGET").to_string();
+    target
+}
+
 deno_core::extension!(sb_core_runtime,
-    ops = [op_main_module],
+    ops = [op_main_module, op_build_target],
     options = {
         main_module: Option<ModuleSpecifier>
     },