diff --git a/packages/app/e2e/regression/composer.spec.ts b/packages/app/e2e/regression/composer.spec.ts
index c536cb98798..e81e1d96df2 100644
--- a/packages/app/e2e/regression/composer.spec.ts
+++ b/packages/app/e2e/regression/composer.spec.ts
@@ -333,7 +333,7 @@ test("a catalog refresh cannot replace an existing session's model", async ({ pa
   await control.click()
   await page
     .getByRole("dialog", { name: "Select model" })
-    .getByRole("option", { name: "Beta Free", exact: true })
+    .getByRole("button", { name: "Beta Free", exact: true })
     .click()
   await expect(control).toHaveText("OpenCode / Beta")
   await view.editor.fill("Use the replacement I chose")
diff --git a/packages/app/test-browser/project-avatar-hover.test.ts b/packages/app/test-browser/project-avatar-hover.test.ts
index 089c2f77c4a..4695c2a333e 100644
--- a/packages/app/test-browser/project-avatar-hover.test.ts
+++ b/packages/app/test-browser/project-avatar-hover.test.ts
@@ -10,6 +10,9 @@ const solid = createRequire(require.resolve("vite-plugin-solid"))
 
 const { transformSync } = solid("@babel/core")
 
+// This file runs with --isolate. Replace the shared hyperscript preload so Solid owns refs and mount effects.
+Bun.plugin.clearAll()
+
 Bun.plugin({
   name: "project-avatar-solid",
   setup(build) {
diff --git a/script/sign-windows.ps1 b/script/sign-windows.ps1
index aaf2a5b657f..ab0b617eb9c 100644
--- a/script/sign-windows.ps1
+++ b/script/sign-windows.ps1
@@ -36,6 +36,10 @@ if (-not $module) {
     Write-Host "NuGet package provider install skipped: $($_.Exception.Message)"
   }
 
+  if (-not (Get-PSRepository -Name PSGallery -ErrorAction SilentlyContinue)) {
+    Register-PSRepository -Default
+  }
+
   Install-Module -Name TrustedSigning -RequiredVersion $moduleVersion -Force -Repository PSGallery -Scope CurrentUser
 }