The Great Pyramid of Quine
05AB1E, 36 bytes

"34çs«DJā·&lt;£õK.cJ?"34çs«DJā·&lt;£õK.cJ?


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If trailing characters are allowed also means at the end of the output, 0"D34çýā·&lt;£.c"D34çýā·&lt;£.c is a layer shorter at 25 bytes.