diff --git a/src/tui/components/QRCode.tsx b/src/tui/components/QRCode.tsx
index e437abd..020a3cb 100644
--- a/src/tui/components/QRCode.tsx
+++ b/src/tui/components/QRCode.tsx
@@ -47,6 +47,8 @@ interface QRCodeProps {
   dialogTitle?: string;
   /** Whether to display the raw encoded value as copyable text above the QR code. */
   showValue?: boolean;
+  /** Optional subtitle to display below the QR code. */
+  subtitle?: React.ReactNode;
 }
 
 /**
@@ -155,6 +157,7 @@ export function QRCode({
   dialog = false,
   dialogTitle = 'QR Code',
   showValue = false,
+  subtitle = null,
 }: QRCodeProps): React.ReactElement {
   const { rows, moduleCount } = useMemo(() => {
     const matrix = generateMatrix(value);
@@ -190,6 +193,7 @@ export function QRCode({
     return (
       <DialogWrapper title={dialogTitle} borderColor={colors.primary} width={dialogWidth}>
         {qrContent}
+        {subtitle}
       </DialogWrapper>
     );
   }
diff --git a/src/tui/screens/WalletState.tsx b/src/tui/screens/WalletState.tsx
index 4ceaa4f..f0662a0 100644
--- a/src/tui/screens/WalletState.tsx
+++ b/src/tui/screens/WalletState.tsx
@@ -29,6 +29,7 @@ import {
   type HistoryDisplayRow,
   type HistoryColorName,
 } from '../../utils/history-utils.js';
+import { copyToClipboard } from '../utils/clipboard.js';
 
 /**
  * Map history color name to theme color.
@@ -75,7 +76,10 @@ type HistoryListItem = ListItemData<HistoryDisplayRow>;
 function QRDialogOverlay({ address, onClose }: { address: string; onClose: () => void }): React.ReactElement {
   useInputLayer('qr-dialog');
 
-  useLayeredInput('qr-dialog', (_input, key) => {
+  useLayeredInput('qr-dialog', (input, key) => {
+    if (input === 'c' || input === 'C') {
+      copyToClipboard(address);
+    }
     if (key.escape || key.return) {
       onClose();
     }
@@ -93,10 +97,13 @@ function QRDialogOverlay({ address, onClose }: { address: string; onClose: () =>
         dialog
         dialogTitle="Receive Address"
         showValue
+        subtitle={
+          <Box flexDirection="column" justifyContent="center" marginTop={1}>
+            <Text color={colors.textMuted}>Press C to copy to clipboard</Text>
+            <Text color={colors.textMuted}>Press Enter or Esc to close</Text>
+          </Box>
+        }
       />
-      <Box justifyContent="center" marginTop={1}>
-        <Text color={colors.textMuted}>Press Enter or Esc to close</Text>
-      </Box>
     </Box>
   );
 }
diff --git a/src/utils/invitation-flow.ts b/src/utils/invitation-flow.ts
index bb2bf59..016a33d 100644
--- a/src/utils/invitation-flow.ts
+++ b/src/utils/invitation-flow.ts
@@ -10,6 +10,7 @@ export interface SelectableUtxoLike {
   selected: boolean;
 }
 
+// TODO: Move to engine
 export const hasMissingRequirements = (missingRequirements: {
   variables?: string[];
   inputs?: string[];
@@ -32,6 +33,7 @@ export const isInvitationRequirementsComplete = async (
   return !hasMissingRequirements(missingRequirements);
 };
 
+// TODO: Move to engine in templates.ts
 export const resolveActionRoles = (
   template: XOTemplate | undefined,
   actionIdentifier: string | undefined,
@@ -51,6 +53,7 @@ export const resolveActionRoles = (
   return [...new Set(roleIds)];
 };
 
+// TODO: Move to engine
 export const roleRequiresInputs = (
   template: XOTemplate | undefined,
   actionIdentifier: string | undefined,
@@ -75,6 +78,7 @@ export const roleRequiresInputs = (
   return (roleInputs?.length ?? 0) > 0;
 };
 
+
 export const getTransactionOutputIdentifier = (
   output: XOTemplateTransactionOutput,
 ): string | undefined => {
@@ -121,6 +125,7 @@ export const tryCashAddressToLockingBytecodeHex = (
   return binToHex(result.bytecode);
 };
 
+// Replace with libauth compiler in the engine
 export const resolveProvidedLockingBytecodeHex = (
   template: XOTemplate,
   outputIdentifier: string,