crypto stuff inside my computer

cat /sys/class/tpm/tpm0/device/description

See https://victoronsoftware.com/posts/how-to-use-tpm/ for more
https://aur.archlinux.org/packages/passkeyd arch aur package for doing this

see arch wiki at https://wiki.archlinux.org/title/WebAuthn#Using_TPM_as_a_FIDO_device