crates/mobile/src/library.rs        |  26 +++----
 crates/mobile/src/tests.rs          | 128 +++++++++++++++++++++++++++++++-
 crates/notebook/README.md           |   5 ++
 crates/notebook/src/lib.rs          |  34 +++++++++
 crates/notebook/src/session.rs      |   3 +-
 crates/notebook/src/working.rs      |  11 +++
 crates/notebook/tests/sync_pages.rs |  94 +++++++++++++++++++++++
 crates/snowbound/src/undo.rs        | 102 ++++++++++++++++++++++---
 8 files changed, 378 insertions(+), 25 deletions(-)