I'm currently learning the C language, using neovim as my editor and lldb for debugging. Here are some things I've picked up so far about debugging C code on a Mac:
Setting Breakpoints
Where you would normally do 'break main' to set a breakpoint, the most succinct way of doing this in lldb is 'b main'. (reference)
TUI/GUI
To launch lldb's GUI, type 'gui' and go forth (as compared with 'tui enable' in gdb.
