# --readonly marks a key as read-only
$ pda set a@sro hello --readonly
$ pda meta a@sro
  key: a@sro
  secret: false
  writable: false
  pinned: false
  expires: never

# Cannot overwrite a read-only key without --force
$ pda set a@sro world --> FAIL
FAIL cannot set 'a@sro': key is read-only

# --force bypasses read-only protection
$ pda set a@sro world --force
$ pda get a@sro
world