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@Published var text: String

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var body: some Scene {
    DocumentGroup(newDocument: {
        DocExampleDocument()
    }) { file in
        ContentView(document: file.document)
    }
}

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@ObservedObject var document: DocExampleDocument

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import SwiftUI
import UniformTypeIdentifiers

struct MessageDocument: FileDocument {
    
    static var readableContentTypes: [UTType] { [.plainText] }

    var message: String

    init(message: String) {

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struct ContentView: View {
    
    @State private var document: MessageDocument = MessageDocument(message: "Hello, World!")
    @State private var isImporting: Bool = false
    @State private var isExporting: Bool = false
    
    var body: some View {
        VStack {
            GroupBox(label: Text("Message:")) {
                TextEditor(text: $document.message)

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  .fileExporter(
      isPresented: $isExporting,
      document: document,
      contentType: .plainText,
      defaultFilename: "Message"
  ) { result in
      if case .success = result {
          // Handle success.
      } else {
          // Handle failure.

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.fileImporter(
    isPresented: $isImporting,
    allowedContentTypes: [.plainText],
    allowsMultipleSelection: false
) { result in
    do {
        guard let selectedFile: URL = try result.get().first else { return }
        guard let message = String(data: try Data(contentsOf: selectedFile), encoding: .utf8) else { return }

        document.message = message

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{
    "accessory": "Script2",
    "name": "LED Matrix",
    "on": "~/scripts/on.sh 1",
    "off": "~/scripts/off.sh 1",
    "fileState": "~/scripts/state.flag"
}

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;
; Netatalk 3.x configuration file
;

[Global]
; Global server settings

; [Homes]
; basedir regex = /xxxx

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[Unit]
Description=Matrix
After=multi-user.target

[Service]
Type=simple
ExecStart=/bin/sh -c '/usr/bin/sudo /home/pi/rpi-rgb-led-matrix/utils/led-image-viewer -f -s -w5 /home/pi/images/*.jpeg /home/pi/images/*.jpg /home /home/pi/images/*.png /home/pi/images/*.gif --led-gpio-mapping=adafruit-hat-pwm --led-cols=64 --led-rows=64'
User=pi