How I setup my nvim | Debian 12

I use this preconfigure nvim config: https://github.com/NeuralNine/config-files/blob/master/init.vim
1. Install neovim 

sudo apt install neovim git-core curl

2. Create nvim directory under .config and paste the neovim preconfiguration from NeuralNine to init.vim

/home/username/.config/nvim/init.vim

3. Install nvim plug in directory (https://github.com/junegunn/vim-plug) /home/username/.config/nvim:

sh -c 'curl -fLo "${XDG_DATA_HOME:-$HOME/.local/share}"/nvim/site/autoload/plug.vim --create-dirs \
       https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'

4. once install nvim-plug, proceed to access nvim and install plug:

:PlugInstall

5. Install exuberant-ctags:

sudo apt install exuberant-ctags

6. Install nodejs:

sudo apt install nodejs

7. Install npm:

sudo apt install npm

8. Navigate to /home/username/.local/share/nvim/plugged/coc.nvim and install:

sudo npm install -g yarn

9. Install yarn

yarn install && yarn build

init.vim configuration:

:set number
:set relativenumber
:set autoindent
:set tabstop=4
:set shiftwidth=4
:set smarttab
:set softtabstop=4
":set mouse=a
set termguicolors
"highlight MatchParen ctermbg=2
hi MatchParen ctermfg=Yellow ctermbg=NONE cterm=bold
hi MatchParen guifg=Yellow guibg=NONE gui=bold

call plug#begin()

Plug 'http://github.com/tpope/vim-surround' " Surrounding ysw)
Plug 'https://github.com/preservim/nerdtree' " NerdTree
Plug 'https://github.com/tpope/vim-commentary' " For Commenting gcc & gc
Plug 'https://github.com/vim-airline/vim-airline' " Status bar
Plug 'https://github.com/lifepillar/pgsql.vim' " PSQL Pluging needs :SQLSetType pgsql.vim
Plug 'https://github.com/ap/vim-css-color' " CSS Color Preview
Plug 'https://github.com/rafi/awesome-vim-colorschemes' " Retro Scheme
Plug 'https://github.com/neoclide/coc.nvim'  " Auto Completion
Plug 'https://github.com/ryanoasis/vim-devicons' " Developer Icons
Plug 'https://github.com/tc50cal/vim-terminal' " Vim Terminal
Plug 'https://github.com/preservim/tagbar' " Tagbar for code navigation
Plug 'https://github.com/terryma/vim-multiple-cursors' " CTRL + N for multiple cursors

Plug 'neovim/nvim-lspconfig'
Plug 'jose-elias-alvarez/null-ls.nvim'
Plug 'MunifTanjim/prettier.nvim'

Plug 'tpope/vim-dispatch'             "| Optional
Plug 'tpope/vim-projectionist'        "|
Plug 'noahfrederick/vim-composer'     "|
Plug 'noahfrederick/vim-laravel'

set encoding=UTF-8

call plug#end()

nnoremap  :NERDTreeFocus
nnoremap  :NERDTree
nnoremap  :NERDTreeToggle
nnoremap  :call CocActionAsync('jumpDefinition')

nmap  :TagbarToggle

:set completeopt-=preview " For No Previews

:colorscheme darkblue

let g:NERDTreeDirArrowExpandable="+"
let g:NERDTreeDirArrowCollapsible="~"

" --- Just Some Notes ---
" :PlugClean :PlugInstall :UpdateRemotePlugins
"
" :CocInstall coc-python
" :CocInstall coc-clangd
" :CocInstall coc-snippets
" :CocCommand snippets.edit... FOR EACH FILE TYPE

" air-line
let g:airline_powerline_fonts = 1

if !exists('g:airline_symbols')
    let g:airline_symbols = {}
endif

" airline symbols
let g:airline_left_sep = ''
let g:airline_left_alt_sep = ''
let g:airline_right_sep = ''
let g:airline_right_alt_sep = ''
let g:airline_symbols.branch = ''
let g:airline_symbols.readonly = ''
let g:airline_symbols.linenr = ''

inoremap   pumvisible() ? coc#_select_confirm() : ""