LaTeX
The editor
Projects open as a dockable workspace: the editor beside a live preview and the discovery panes (related, backlinks, cites). It compiles as you type and reports diagnostics inline.
Citing & quoting your library
\cite{slug} references a library node by slug; \quote[slug]{} pulls a resolved quote from it. Put the cursor on a \cite or an autolink and press Ctrl-Enter (or Ctrl-click) to jump to its definition.
Diagnostics
Open the diagnostics panel with Ctrl-.; step through problems with ]d / [d.
Vim mode
Toggle it from the palette (> toggle vim mode). Unlike Overleaf, y/d/c in normal mode sync to the system clipboard, so yanked text is immediately usable outside the editor.