One card, in full: its title, what is known about it, and its description.

Opened with ^I over the list and centred on the terminal. Everything in it was fetched with the board, so it opens instantly and keeps working with the network gone — including the card it moves to next.

↑ ↓ j k ^P ^N     the next or previous card    ⏎ ^O    open in a browser
PgUp PgDn ^D ^U   scroll a long description    ESC q   close
Home              back to the top

Moving without closing

j and k walk the list with the popup still open, which is what reading through a column is: open the first card, keep pressing j. The popup does not hold the list — it asks Gitpro.Views.Issues to move its selection and is handed back whatever is now selected. So the selection behind the popup moves with it, the search and the switches still decide what "next" means, and closing the popup leaves the cursor on the card you stopped at rather than the one you started from.

Drawing someone else's text

An issue body is text from the internet being drawn into a terminal in raw mode, which is the one place where that is dangerous: an escape sequence in it would move the cursor, repaint colours the view never asked for, or set the window title. Atui.Text.sanitize/1 takes those out, and Atui.Text.wrap/2 breaks what is left to the popup's width. Markdown is left as it was written — a terminal that renders it is a different program, and the source of a list is still a readable list.

Lines, then a window onto them

lines/2 turns the card into the rows to draw, and the view keeps a scroll offset into that list. It is a pure function of the card and a width, so what a long body looks like at forty columns is a test rather than a screenshot.