/usr/share/expeyes/firmware/set_fuse.sh is in expeyes-firmware-dev 3.4.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | echo "Setting fuses for ATmega32: 8Mhz External Crystal, disable JTAG"
uisp -dprog=dapa -dpart=atmega32 -dlpt=0x378 --erase
uisp -dprog=dapa -dpart=atmega32 -dlpt=0x378 --wr_fuse_l=0xef
uisp -dprog=dapa -dpart=atmega32 -dlpt=0x378 --wr_fuse_h=0xd1
uisp -dprog=dapa -dpart=atmega32 -dlpt=0x378 --rd_fuses
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