The schematic uses an infested stone generator to spawn silverfish and breaks it through wifi

Block by block build tutorial (with use instructions and a fix for a bug which may occur)
https://www.youtube.com/watch?v=tIZ7Ki5nf_0

If you are wondering why there is ice, it is frozen ice which is unobtainable, allowing for a dummy block that the schematicannon will automatically skip while still deleting blocks not part of the schematic

Intstructions:
Align the schematic up with ground level (rails should be on ground level)
In the schematicannon printer settings, enable replace solid with empty and start
There are signs which tell you blocks that you need to manually place (lava, water)
Make sure to fill up the basin with lava and the fan has a lava source

MAKE SURE TO NOT HAVE ANY STONE IN THE KILLING AREA OR THE SILVERFISH WILL ESCAPE