diff --git a/packages/dui3/lib/bindings/definitions/baseBindings.ts b/packages/dui3/lib/bindings/definitions/baseBindings.ts
new file mode 100644
index 000000000..83971e527
--- /dev/null
+++ b/packages/dui3/lib/bindings/definitions/baseBindings.ts
@@ -0,0 +1,76 @@
+export interface IBaseBindings {
+  sayHi: (name: string) => Promise<string>
+  getAccounts: () => Promise<Account[]>
+  getSourceAppName: () => Promise<string>
+  getSourceAppVersion: () => Promise<string>
+  getDocumentInfo: () => Promise<DocumentInfo>
+
+  // TODO:
+  getFileState: () => Promise<FileState>
+  updateFileState: (state: FileState) => Promise<void>
+
+  /**
+   * Subscribe to messages from the host application.
+   * @param event
+   * @param callback
+   */
+  on: <E extends keyof IBaseBindingsHostEvents>(
+    event: E,
+    callback: IBaseBindingsHostEvents[E]
+  ) => void
+}
+
+export interface IBaseBindingsHostEvents {
+  displayToastNotification: (args: ToastInfo) => void
+  documentChanged: () => void
+  selectionChanged: (args: SelectionChangedInfo) => void
+}
+
+export type Account = {
+  id: string
+  isDefault: boolean
+  token: string
+  serverInfo: {
+    name: string
+    url: string
+  }
+  userInfo: {
+    id: string
+    avatar: string
+    email: string
+    name: string
+    commits: { totalCount: number }
+    streams: { totalCount: number }
+  }
+}
+
+export type FileState = {
+  models: ModelCard[]
+}
+
+export type ModelCard = {
+  serverUrl: string // we need to select the correct account
+  modelId: string // we need to assemble the gql query properly
+  projectId: string
+  type: 'sender' | 'receiver'
+  status?: 'idle' | 'inprogress' | 'error' | 'warning' | 'disabled' | 'expired' //???
+  // settings: Record<string,unknown>???
+  // report: Record<string,unknown>???
+  // progress: Record<string, unknown> // ??? send status, receive status
+}
+export type DocumentInfo = {
+  location: string
+  name: string
+  id: string
+}
+
+export type ToastInfo = {
+  text: string
+  details?: string
+  type: 'info' | 'error' | 'warning'
+}
+
+export type SelectionChangedInfo = {
+  objectIds: string[]
+  humanReadableSummary?: string
+}
diff --git a/packages/dui3/lib/bridge/base.ts b/packages/dui3/lib/bridge/base.ts
index f8d904fbf..ae0c6ddf3 100644
--- a/packages/dui3/lib/bridge/base.ts
+++ b/packages/dui3/lib/bridge/base.ts
@@ -3,7 +3,6 @@ import { createNanoEvents, Emitter } from 'nanoevents'
 /**
  * A simple (typed) event emitter base class that host applications can use to send messages (and data) to the web ui,
  * e.g. via `browser.executeScriptAsync("myBindings.on('eventName', serializedData)")`.
-
  */
 export class BaseBridge {
   private emitter: Emitter
diff --git a/packages/dui3/lib/bridge/webview.ts b/packages/dui3/lib/bridge/webview.ts
index 7adfc86e3..7878a5b0b 100644
--- a/packages/dui3/lib/bridge/webview.ts
+++ b/packages/dui3/lib/bridge/webview.ts
@@ -10,7 +10,7 @@ type IWebView2 = {
 }
 
 type IRawBridge = {
-  GetMethods: () => string[]
+  GetBindingsMethodNames: () => string[]
   RunMethod: (methodName: string, args: string) => Promise<string>
 }
 
@@ -25,7 +25,7 @@ export class WebView2Bridge extends BaseBridge {
 
     // NOTE: GetMethods is a call to the .NET side.
     const availableMethodNames =
-      chrome.webview.hostObjects.sync[bridgeName].GetMethods()
+      chrome.webview.hostObjects.sync[bridgeName].GetBindingsMethodNames()
 
     // NOTE: hoisting original calls as lowerCasedMethodNames, but using the UpperCasedName for the .NET call
     // This allows us to follow js convetions and keep .NET ones too (eg. bindings.sayHi('') => public string SayHi(string name) {}
diff --git a/packages/dui3/pages/index.vue b/packages/dui3/pages/index.vue
index 09218cef4..f7f574c0c 100644
--- a/packages/dui3/pages/index.vue
+++ b/packages/dui3/pages/index.vue
@@ -38,7 +38,7 @@ import { graphql } from '~/lib/common/generated/gql'
 import { ServerInfoTestQuery } from '~/lib/common/generated/gql/graphql'
 
 const { $bindings } = useNuxtApp()
-const appName = await $bindings.getSourceAppName()
+const appName = await $bindings.getSourceApplicationName()
 const { accounts, refreshAccounts, defaultAccount } = await useAccountsSetup()
 
 const versionQuery = graphql(`
diff --git a/packages/dui3/types/index.ts b/packages/dui3/types/index.ts
index a7ecd09ab..de7a9a41c 100644
--- a/packages/dui3/types/index.ts
+++ b/packages/dui3/types/index.ts
@@ -44,19 +44,14 @@ type TestData = {
 // .NET/Host App -> JS
 export interface HostAppEvents {
   test: (data: TestData) => void
-  documentChanged: (data: { x: number; y: boolean }) => void
-  selectionChanged: () => void
-  documentClosed: () => void
-  updateModelCardState: () => void
-  displayToastNotification: () => void // bla bla bla
 }
 
 // JS -> asks for something form host app
 export interface IWebUiBinding {
-  sayHi: (name: string) => Promise<string>
   openDevTools: () => Promise<void>
   getAccounts: () => Promise<Account[]>
-  getSourceAppName: () => Promise<string>
+  getSourceApplicationName: () => Promise<string>
+  getSourceApplicationVersion: () => Promise<string>
   // getFileState: () => Promise<FileState>
   // addModelCard(string modelId, string projectId), removeModelCard(...) // etc. etc.