Flags

Atmosphère supports customizing CFW behavior based on the presence of flags on the SD card.

The following flags are supported on a per-title basis, by placing <flag_name>.flag inside /atmosphere/titles/<title_id>/flags/:

boot2, which indicates to PM that the title should be launched during the boot2 process.
fsmitm, which indicates that fs.mitm should override contents for the title even if it otherwise wouldn't.
fsmitm_disable, which indicates that fs.mitm should not override contents for the title, even it it otherwise would.
bis_write, which indicates that fs.mitm should allow the title to write to BIS partitions.
cal_read, which indicates that fs.mitm should allow the title to read the CAL0/PRODINFO partition.

The following global flags are supported, by placing <flag name>.flag inside /atmosphere/flags/:

hbl_bis_write and hbl_cal_read enable the BIS write and CAL0 read functionality for HBL, without needing to specify its title id.