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Continue to ChatAtari 8-bit guide for lr-atari800 and Retropie https://www.raphkoster.com/about-raph/hobbies/emulation/atari-8-bit-guide-for-lr-atari800-and-retropie/
Atari 8-bit guide for lr-atari800 and Retropie https://www.raphkoster.com/about-raph/hobbies/emulation/atari-8-bit-guide-for-lr-atari800-and-retropie/