Distinguish between breaking/non-breaking changes and backward/forward compatibility; Focus on if reader can handle new or old data

mod declare/defines module, use creates shortcuts, pub mod declare/defines and shares module, pub use creates and shares shortcut

group_by breaks the Frame, over adds columns; DataFrame transforms rows

deref() returns a reference; Rust adds *; as_ref() and as_deref() let you peek without consuming

&‘a str, ’long:‘short, where T: Display + ‘a, where T: Display + ‘static

locks handle ww, snapshots handle wr, ssi handles rw

Bubbletea without the tea but with an s

lipgloss, gloss gloss gloss

IUV: Init, Update, View

visit who? accept what? walk huh? eval deeze?