I see now

components/helpers/text.tsx

@@ -28,6 +28,6 @@ export function Label(props: LabelProps): React.JSX.Element {
 
 export function Heading({ children }: { children: string }): React.JSX.Element {
     return (
-        <H1 marginVertical={30} size="$3" fontWeight="900">{ children }</H1>
+        <H1 marginVertical={30} size="$3" fontFamily={"$heading"}>{ children }</H1>
     )
 }

react-native.config.js

@@ -1,3 +1,7 @@
 module.exports = {
+    project: {
+        ios: {},
+        android: {},
+    },
     assets: ['./assets/fonts/'],
 };  

tamagui.config.ts

@@ -1,30 +1,39 @@
-import { animations, tokens, themes, media, shorthands } from '@tamagui/config/v3'
+import { animations, tokens, themes, media, shorthands, config } from '@tamagui/config/v3'
 import { createFont, createTamagui } from 'tamagui' // or '@tamagui/core'
 
-const jellifyFont = createFont({
-    family: 'Aileron-Regular, Helvetica, Arial, sans-serif',
-    size: {
-        1: 12,
-        2: 14,
-        3: 15,
-    },
-    face: {
-        100: { normal: 'Aileron-UltraLight', italic: 'Aileron-UltraLightItalic' },
-        200: { normal: 'Aileron-Thin', italic: 'Aileron-ThinItalic' },
-        300: { normal: 'Aileron-Light', italic: 'Aileron-LightItalic' },
-        400: { normal: 'Aileron-Regular', italic: 'Aileron-Italic'} ,
-        500: { normal: 'Aileron-Regular', italic: 'Aileron-Italic' },
-        600: { normal: 'Aileron-SemiBold', italic: 'Aileron-SemiBoldItalic' },
-        700: { normal: 'Aileron-Bold', italic: 'Aileron-BoldItalic' },
-        800: { normal: 'Aileron-Heavy', italic: 'Aileron-HeavyItalic' },
-        900: { normal: 'Aileron-Black', italic: 'Aileron-BlackItalic' },
-    }
+const aileronFace = {
+    100: { normal: 'Aileron-UltraLight', italic: 'Aileron-UltraLightItalic' },
+    200: { normal: 'Aileron-Thin', italic: 'Aileron-ThinItalic' },
+    300: { normal: 'Aileron-Light', italic: 'Aileron-LightItalic' },
+    400: { normal: 'Aileron-Regular', italic: 'Aileron-Italic'} ,
+    500: { normal: 'Aileron-Regular', italic: 'Aileron-Italic' },
+    600: { normal: 'Aileron-SemiBold', italic: 'Aileron-SemiBoldItalic' },
+    700: { normal: 'Aileron-Bold', italic: 'Aileron-BoldItalic' },
+    800: { normal: 'Aileron-Heavy', italic: 'Aileron-HeavyItalic' },
+    900: { normal: 'Aileron-Black', italic: 'Aileron-BlackItalic' },
+};
+
+const bodyFont = createFont({
+    size: config.fonts.body.size,
+    lineHeight: config.fonts.body.lineHeight,
+    weight: config.fonts.body.weight,
+    letterSpacing: config.fonts.body.letterSpacing,
+    face: aileronFace
 })
+
+const headingFont = createFont({
+    size: config.fonts.heading.size,
+    lineHeight: config.fonts.heading.lineHeight,
+    weight: config.fonts.heading.weight,
+    letterSpacing: config.fonts.heading.letterSpacing,
+    face: aileronFace
+})
+
 const jellifyConfig = createTamagui({
     animations,
     fonts:{
-        heading: jellifyFont,
-        body: jellifyFont,
+        heading: headingFont,
+        body: bodyFont,
     },
     media,
     shorthands,