Very basic compose scaffolding for Potassium.

PotassiumMainScreen.kt

@Composable
fun MainScreen(viewModel: ViewModel) {
    val cameraIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
    var bitmap by remember { mutableStateOf<Bitmap?>(null) }
    val textResponse by viewModel.textGenerated.observeAsState()
    val isGenerating by viewModel.isGenerating.observeAsState(false)

    // Get your image
    val resultLauncher =
        rememberLauncherForActivityResult(ActivityResultContracts.StartActivityForResult()) { result: ActivityResult ->
            if (result.resultCode == Activity.RESULT_OK) {
                if (result?.data != null) {
                    bitmap = result.data?.extras?.get("data") as Bitmap
                }
            }
        }
    Column (
        Modifier.padding(12.dp)
    ) {
        Text(
            text = "potassium",
            fontFamily = FontFamily(Font(R.font.scrabble)),
            fontSize = 54.sp,
            modifier = Modifier
                .align(Alignment.CenterHorizontally)
                .padding(4.dp)
            )
        Card(
            border = BorderStroke(
                2.dp,
                MaterialTheme.colorScheme.primary
            ),
            modifier = Modifier
                .size(
                    width = 450.dp,
                    height = 450.dp
                )
                .align(Alignment.CenterHorizontally)
        ) {
            bitmap?.let {
                Image(
                    bitmap = it.asImageBitmap(),
                    contentDescription = "Picture",
                    contentScale = ContentScale.FillWidth,
                    modifier = Modifier.fillMaxSize()
                )
            }
        }
        Row (modifier = Modifier.align(Alignment.CenterHorizontally)){
            Button (
                onClick = {
                    resultLauncher.launch(cameraIntent)
                },
            ) {
                Icon(Icons.Default.CameraAlt, contentDescription = "Camera")
            }
            Button (
                modifier = Modifier.padding(horizontal = 6.dp),
                onClick = {
                    if (bitmap!=null) {
                        viewModel.generate(bitmap!!)
                    }
                },
                enabled = !isGenerating
            ) {
                Text(text = "Analyse tiles")
                Icon(Icons.Default.Psychology, contentDescription = "Camera")
            }
        }

        Spacer(modifier = Modifier.height(30.dp).padding(12.dp))
        if (isGenerating){
            Text(
                text = "Thinking..."
            )
        } else {
            MarkdownText(
                markdown = textResponse?:""
            )
        }
    }
}