nvim-cmp configuration taken too far

Dotfiles: https://github.com/wincent/wincent
nvim-cmp config: https://github.com/wincent/wincent/bl...
Custom completion source: https://github.com/wincent/wincent/bl...
Making a custom completion source:    • Neovim #110: Making a custom nvim-cmp...  
nvim-cmp: https://github.com/hrsh7th/nvim-cmp
The `MatchSuffix` issue: https://github.com/hrsh7th/nvim-cmp/i...
Music: http://www.bensound.com/royalty-free-...
Other episodes: https://wincent.com/link/screencasts

00:00 Intro
00:47 Demo
06:17 Configuration
06:35 Icons
07:38 Ghost text
11:37 Formatting
11:57 Mappings
14:28 Smart tab
16:30 Smart backspace
17:12 Replace, Insert and MatchSuffix
20:16 Conclusion