diff --git a/.gitignore b/.gitignore
index cc81c7d..0a3d92c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,4 +20,7 @@ test-screenshot-*.png
 test-expand-*.png
 browser-debug-screenshot.png
 
-app/.webpack-cache
\ No newline at end of file
+app/.webpack-cache
+
+# Temporary files
+/tmp
\ No newline at end of file
diff --git a/events/DialogTypes.ts b/events/DialogTypes.ts
new file mode 100644
index 0000000..b2fc557
--- /dev/null
+++ b/events/DialogTypes.ts
@@ -0,0 +1,59 @@
+/**
+ * Browser-compatible dialog type definitions
+ * These types mirror Electron's dialog types but don't require the electron package
+ */
+
+export interface FileFilter {
+  name: string
+  extensions: string[]
+}
+
+export interface OpenDialogOptions {
+  title?: string
+  defaultPath?: string
+  buttonLabel?: string
+  filters?: FileFilter[]
+  properties?: Array<
+    | 'openFile'
+    | 'openDirectory'
+    | 'multiSelections'
+    | 'showHiddenFiles'
+    | 'createDirectory'
+    | 'promptToCreate'
+    | 'noResolveAliases'
+    | 'treatPackageAsDirectory'
+    | 'dontAddToRecent'
+  >
+  message?: string
+  securityScopedBookmarks?: boolean
+}
+
+export interface OpenDialogReturnValue {
+  canceled: boolean
+  filePaths: string[]
+  bookmarks?: string[]
+}
+
+export interface SaveDialogOptions {
+  title?: string
+  defaultPath?: string
+  buttonLabel?: string
+  filters?: FileFilter[]
+  message?: string
+  nameFieldLabel?: string
+  showsTagField?: boolean
+  properties?: Array<
+    | 'showHiddenFiles'
+    | 'createDirectory'
+    | 'treatPackageAsDirectory'
+    | 'showOverwriteConfirmation'
+    | 'dontAddToRecent'
+  >
+  securityScopedBookmarks?: boolean
+}
+
+export interface SaveDialogReturnValue {
+  canceled: boolean
+  filePath?: string
+  bookmark?: string
+}
diff --git a/events/EventsV2.ts b/events/EventsV2.ts
index 048784d..bd512f4 100644
--- a/events/EventsV2.ts
+++ b/events/EventsV2.ts
@@ -62,8 +62,8 @@ export interface CertificateUploadResponse {
   data: string // base64 encoded
 }
 
-// Electron dialog types (re-exported for convenience)
-import { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from 'electron'
+// Dialog types (browser-compatible versions)
+import type { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from './DialogTypes'
 
 export type OpenDialogOptionsV2 = OpenDialogOptions
 export type OpenDialogReturnValueV2 = OpenDialogReturnValue
diff --git a/events/OpenDialogRequest.ts b/events/OpenDialogRequest.ts
index aba391e..8e64da1 100644
--- a/events/OpenDialogRequest.ts
+++ b/events/OpenDialogRequest.ts
@@ -1,4 +1,4 @@
-import { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from 'electron'
+import type { OpenDialogOptions, OpenDialogReturnValue, SaveDialogOptions, SaveDialogReturnValue } from './DialogTypes'
 import { RpcEvent } from './EventSystem/Rpc'
 
 // Legacy functions - use RpcEvents from EventsV2.ts for new code