I use Junegunn’s Vim plugin [vim-easy-align](https://github.com/junegunn/vim-easy-align/) to make it easier to align my code. This plugin does not have a default mapping for aligning the dollar sign ($). Because the plugin is designed to be extensible, I was able to add support for aligning by the dollar sign ($) by adding some lines to my .vimrc file.
Vim has a built-in command to close all windows except the current one (:only), which is nice for focusing on a single buffer. Sometimes I want to cleanup my buffers by closing all of the buffers except for the current one. This custom command is like :only for buffers instead of windows.
I wanted to run the latest development version of Neovim (0.4.0) to use some of the latest features (e.g. the floating window). Unfortunately, my attempts to install it were failing. These are my notes on the problem and how I fixed it.