8bitworkshop https://8bitworkshop.com/
Emulator (Multiplatform)
https://stella-emu.github.io/downloads.html https://javatari.org/
Resources
http://www.6502.org/ https://www.atariarchives.org/
Assembly Instructions and Opcodes
Assembly Instructions and Opcodes http://www.6502.org/tutorials/6502opcodes.html 6502 Cheat Sheets https://www.chibiakumas.com/6502/CheatSheet.pdf
Android Emulator Hypervisor Driver for AMD Processors
https://github.com/google/android-emulator-hypervisor-driver-for-amd-processors
Go Online Book (Free)
https://www.practical-go-lessons.com/
Apps Icon Generator and Graphic Utilities
https://appicon.co/ https://easyappicon.com/ https://www.remove.bg/
Flutter Using MaterialApp class library documentation.
MaterialApp class with its properties and methods to be used for your code. MaterialApp documentation explain it usage here https://api.flutter.dev/flutter/material/MaterialApp-class.html
Understanding Material Design (Web/Mobile App)
https://material.io/
Flutter StatelessWidget
https://api.flutter.dev/flutter/widgets/StatelessWidget-class.html