apps/desktop/src/preview/GuestProtocol.ts |  1 +
 apps/desktop/src/preview/Manager.test.ts  | 63 ++++++++++++++++++++++++++++++++
 apps/desktop/src/preview/Manager.ts       | 19 ++++++++++
 apps/desktop/src/preview/PickPreload.ts   | 35 ++++++++++++++++++
 4 files changed, 118 insertions(+)