diff --git a/src/builtins.ts b/src/builtins.ts
index ed88f64..b1193fd 100644
--- a/src/builtins.ts
+++ b/src/builtins.ts
@@ -36,7 +36,7 @@ function expectString(v: Value, name: string): string {
 //     return v.elements;
 // }
 
-export const builtins: { [name: string]: NativeFunction } = {
+export const builtins: { [name: string]: Value } = {
     // Arithmetic
     'add': {
         kind: 'native',
@@ -469,42 +469,46 @@ export const builtins: { [name: string]: NativeFunction } = {
         arity: 2,
         fn: (label, value) => {
             const l = expectString(label, 'debug');
-            console.log(`[DEBUG] ${l}: `, value);
             return value;
         }
     },
 
     'store': {
-        kind: 'native',
-        name: 'store',
-        arity: 1,
-        fn: (initialValue) => {
-            return { kind: 'ref', value: initialValue };
-        }
-    },
-
-    'get': {
-        kind: 'native',
-        name: 'get',
-        arity: 1,
-        fn: (ref) => {
-            if (ref.kind !== 'ref')
-                throw new Error('get expects a Ref');
+        kind: 'record',
+        fields: {
+            'ref': {
+                kind: 'native',
+                name: 'Store.ref',
+                arity: 1,
+                fn: (initialValue) => {
+                    return { kind: 'ref', value: initialValue };
+                }
+            },
 
-            return ref.value;
-        }
-    },
+            'get': {
+                kind: 'native',
+                name: 'Store.get',
+                arity: 1,
+                fn: (ref) => {
+                    if (ref.kind !== 'ref')
+                        throw new Error('get expects a Ref');
 
-    'update': {
-        kind: 'native',
-        name: 'update',
-        arity: 2,
-        fn: (ref, transformFn) => {
-            return {
-                kind: 'constructor',
-                name: 'Update',
-                args: [ref, transformFn]
-            };
+                    return ref.value;
+                }
+            },
+
+            'set': {
+                kind: 'native',
+                name: 'Store.set',
+                arity: 2,
+                fn: (ref, transformFn) => {
+                    return {
+                        kind: 'constructor',
+                        name: 'Update',
+                        args: [ref, transformFn]
+                    };
+                }
+            }
         }
-    },
+    }
 }
diff --git a/src/main.ts b/src/main.ts
index a098919..cfcb386 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -11,7 +11,6 @@ import designTokensCode from './design-tokens.cg?raw';
 import uiComponentsCode from './ui-components.cg?raw';
 
 import textInputCode from './textinput-test.cg?raw';
-import refTest from './test-ref.cg?raw';
 // import testCode from './test.cg?raw';
 // import counterApp from './counter.cg?raw';
 
@@ -22,7 +21,6 @@ const cgCode = stdlibCode + '\n' +
     designTokensCode + '\n' +
     uiComponentsCode + '\n' +
     textInputCode + '\n'
-    // refTest + '\n';
 
 try {
     const tokens = tokenize(cgCode);
diff --git a/src/parser.ts b/src/parser.ts
index ed18b02..8c83bdf 100644
--- a/src/parser.ts
+++ b/src/parser.ts
@@ -279,9 +279,13 @@ export class Parser {
         const token = this.current();
         const params: string[] = [];
 
-        while (this.current().kind === 'ident') {
+        while (this.current().kind === 'ident' || this.current().kind === 'underscore') {
             const param = this.advance();
-            params.push((param as { value: string }).value);
+            if (param.kind === 'underscore') {
+                params.push('_');
+            } else {
+                params.push((param as { value: string }).value);
+            }
         }
 
         this.expect('backslash');
diff --git a/src/test-ref.cg b/src/test-ref.cg
deleted file mode 100644
index 34bb75c..0000000
--- a/src/test-ref.cg
+++ /dev/null
@@ -1,17 +0,0 @@
-  counter = store 0;
-
-  view = state viewport \
-    currentCount = get counter;
-
-    Column {
-      gap = 10,
-      children = [
-        Text { content = str currentCount, x = 30, y = 30 },
-        Clickable {
-          event = update counter (n \ n + 1),
-          child = Rect { w = 100, h = 40, color = "blue" }
-        }
-      ]
-    };
-
-  { init = {}, update = state event \ state, view = view }
diff --git a/src/textinput-test.cg b/src/textinput-test.cg
index eddf274..7e24c2e 100644
--- a/src/textinput-test.cg
+++ b/src/textinput-test.cg
@@ -1,11 +1,14 @@
 init = {};
 
+email = store.ref "";
+password = store.ref "";
+
 update = state event \ event
-  # | FocusEmail coords \ state.{ focusedInput = "email" }
-  # | FocusPassword coords \ state.{ focusedInput = "password" }
   | _ \ state;
 
 view = state viewport \
+ emailText = store.get email;
+
  Positioned {
    x = 30,
    y = 30,
@@ -18,8 +21,7 @@ view = state viewport \
          initialFocus = True,
          w = 300,
          h = 40,
-         onChange = text \ Noop
-         # onFocus = Noop
+         onChange = text \ store.set email (a \ text)
        },
        textInput {
          key = "password",
@@ -27,9 +29,10 @@ view = state viewport \
          initialFocus = False,
          w = 300,
          h = 40,
-         onChange = text \ Noop
-         # onFocus = Noop
-       }
+         onChange = text \ store.set password (a \ text)
+       },
+       Text { content = "Username: " & emailText, x = 8, y = 16 },
+       Text { content = "Password: " & store.get password, x = 8, y = 16 }
      ]
    }
  };
diff --git a/src/ui-components.cg b/src/ui-components.cg
index b6f3566..052b5f3 100644
--- a/src/ui-components.cg
+++ b/src/ui-components.cg
@@ -88,7 +88,6 @@ textInput = config \ Stateful {
     )
 
     | Char c \
-    _ = debug c;
     newText = insertChar state.text state.cursorPos c;
     newCursorPos = state.cursorPos + 1;
     newScroll = calcScrollOffset newText newCursorPos state.scrollOffset 284;