Building a Custom Tabline in Neovim with Lua

When people hear "tabs" in an editor, they usually imagine something
like browser tabs in Chrome, Firefox, or even VSCode. But Neovim's
tabs are quite different, they are workspaces, each containing
its own set of windows and splits. Think of them more like tmux's
sessions or Emacs' tab-bar, rather than VSCode's tab-line that just
lists files.

By default, Neovim’s tabline sh...