if I understand correctly it only injects a "gene cassette" which forms an episome (a plasmid-like thing, ie. just a ring of DNA outside the nucleus, just float

if I understand correctly it only injects a "gene cassette" which forms an episome (a plasmid-like thing, ie. just a ring of DNA outside the nucleus, just floating around in the cell), so it's non-integrating https://youtu.be/q8HIubDJiMI?t=41 https://youtu.be/q8HIubDJiMI?t=41