My new neovim configuration

.zshrc

# Replace vim with neo vim
if type nvim > /dev/null 2>&1; then
  alias vim='nvim'
fi

init.vim

" ================
" Migrate from vim
" ----------------
set runtimepath^=~/.vim runtimepath+=~/.vim/after
let &packpath = $runtimepath
source ~/.vimrc


" ====================
" Basic configurations
" --------------------
set nocompatible
syntax on
filetype on
filetype indent on
filetype plugin on

set number
set hidden
set ignorecase
set smartcase
set incsearch
set noerrorbells visualbell t_vb=
set mouse+=a
set encoding=utf-8
set tabstop=2 softtabstop=2 shiftwidth=2 expandtab smarttab
set expandtab
set list listchars=tab:►\ ,trail:·
set scrolloff=5
set tw=0
set indentexpr=
set backspace=indent,eol,start
set foldmethod=indent
set foldlevel=99
set laststatus=2
set autochdir
set cursorline


" ============
" Key mappings
" ------------
let mapleader=' '

nmap n nzz
nmap N Nzz

nmap S :w<Return>
nmap Q :q<Return>

" Tabs
nmap te :tabedit
nmap <S-Tab> :tabprev<Return>
nmap <Tab> :tabnext<Return>

" Windows
nmap ss :split<Return><C-w>w
nmap sv :vsplit<Return><C-w>w
nmap <Space> <C-w>w
map sq <C-w>q
map sh <C-w>h
map sk <C-w>k
map sj <C-w>j
map sl <C-w>l
map s<left> <C-w>5<
map s<right> <C-w>5>
map s<up> <C-w>5+
map s<down> <C-w>-


" =======
" Plugins
" -------
call plug#begin()
Plug 'neovim/nvim-lspconfig'
Plug 'hrsh7th/cmp-nvim-lsp'
Plug 'hrsh7th/cmp-buffer'
Plug 'hrsh7th/cmp-path'
Plug 'hrsh7th/cmp-cmdline'
Plug 'hrsh7th/nvim-cmp'
Plug 'hrsh7th/vim-vsnip'
Plug 'hrsh7th/vim-vsnip-integ'
Plug 'machakann/vim-sandwich'
Plug 'vim-airline/vim-airline'
Plug 'vim-airline/vim-airline-themes'
Plug 'onsails/lspkind.nvim'
Plug 'jiangmiao/auto-pairs'
Plug 'kevinhwang91/nvim-hlslens'
Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
Plug 'junegunn/fzf.vim'
Plug 'junegunn/vim-easy-align'
Plug 'akinsho/toggleterm.nvim', {'tag' : 'v1.*'}
Plug 'justinmk/vim-sneak'
Plug 'RRethy/vim-illuminate'

call plug#end()

" FZF config
nmap <Leader>f :Files<Enter>

" Align config
xmap ga <Plug>(EasyAlign)
nmap ga <Plug>(EasyAlign)

" Terminal
:lua require("toggleterm").setup{}
autocmd TermEnter term://*toggleterm#*
      \ tnoremap <silent><c-t> <Cmd>exe v:count1 . "ToggleTerm"<CR>
nnoremap <silent><c-t> <Cmd>exe v:count1 . "ToggleTerm"<CR>
inoremap <silent><c-t> <Esc><Cmd>exe v:count1 . "ToggleTerm"<CR>

" Sneak
map f <Plug>Sneak_s
map F <Plug>Sneak_S

" LSP config
nmap <silent> ff <cmd>lua vim.lsp.buf.format { async = true }<CR>
:lua require'lspconfig'.clangd.setup{}

" CMP config
set completeopt=menu,menuone,noselect

lua <<EOF
  -- Setup nvim-cmp.
  local cmp = require('cmp')
  local lspkind = require('lspkind')

  cmp.setup({
    snippet = {
      expand = function(args)
        vim.fn["vsnip#anonymous"](args.body)
      end,
    },
    mapping = cmp.mapping.preset.insert({
      ['<Tab>'] = function(fallback)
        if cmp.visible() then
          cmp.select_next_item()
        else
          fallback()
        end
      end,
      ['<S-Tab>'] = function(fallback)
        if cmp.visible() then
          cmp.select_prev_item()
        else
          fallback()
        end
      end,
      ['<CR>'] = cmp.mapping.confirm({ select = true }),
      ['<C-e>'] = cmp.mapping.abort(),
      ['<Esc>'] = cmp.mapping.close(),
    }),
    sources = cmp.config.sources({
      { name = 'nvim_lsp' },
    }, {
      { name = 'buffer' },
    }),
    formatting = {
      format = lspkind.cmp_format({
        mode = "symbol_text",
        menu = ({
          nvim_lsp = "[LSP]",
          ultisnips = "[US]",
          nvim_lua = "[Lua]",
          path = "[Path]",
          buffer = "[Buffer]",
          emoji = "[Emoji]",
          omni = "[Omni]",
        }),
      }),
    },
  })

  -- Use buffer source for `/`
  cmp.setup.cmdline('/', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
      { name = 'buffer' }
    }
  })

  -- Use cmdline & path source for ':'
  cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources({
      { name = 'path' }
    }, {
      { name = 'cmdline' }
    })
  })

  -- Setup lspconfig.
  local capabilities = require('cmp_nvim_lsp').update_capabilities(vim.lsp.protocol.make_client_capabilities())
  require('lspconfig')['clangd'].setup {
    capabilities = capabilities
  }
EOF

filetype indent on
filetype plugin on
filetype plugin indent on

filetype plugin indent on is duplicated with filetype indent on + filetype plugin on

Good catch!