# 2023-10-13

Happy Friday the 13th.

Busy hacking, so here's some topics to write about.

## C++ hacks

rcpp
Flags
kconf
khmgr
Build failure

## Adventures in writing a text editor

Cursor bounds for windows
Cursor math
Scrolling
Valid bounds for a doc (e.g. x >= 0, but -y means "scroll backwards in
  the previous line")