First version of the config, completely in lua.

.netrwhist

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+let g:netrw_dirhistmax  =10
+let g:netrw_dirhistcnt =6
+let g:netrw_dirhist_6='/Users/marianouvalle/dev/AtHomeHRI/backend'
+let g:netrw_dirhist_5='/Users/marianouvalle/dev/AtHomeHRI'
+let g:netrw_dirhist_4='/Users/marianouvalle/dev/ciudad-de-los-ninos'
+let g:netrw_dirhist_3='/Users/marianouvalle/dev/ciudad-de-los-ninos/src'
+let g:netrw_dirhist_2='/Users/marianouvalle/dev/ciudad-de-los-ninos'
+let g:netrw_dirhist_1='/Users/marianouvalle'

init.lua

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+require('plugins')
+require('colorscheme')
+require('keymappings')
+require('settings')
+
+require('lsp')
+require('lsp.typescript-ls')
+require('lsp.python-ls')
+require('nv-compe')
+
+require('nv-prettier')

lua/colorscheme.lua

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+vim.cmd("colorscheme palenight")
+vim.g.lightline={
+    colorscheme='palenight'
+}
+vim.api.nvim_set_option('background', 'dark')
+vim.api.nvim_set_option('termguicolors', true)

lua/keymappings.lua

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+-- Space as leader.
+vim.api.nvim_set_keymap('n', '<Space>', '<NOP>', {noremap = true, silent = true})
+vim.g.mapleader = ' '
+
+-- Exit insert mode with jk.
+vim.api.nvim_set_keymap('i', 'jk', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('i', 'kj', '<ESC>', {noremap = true, silent = true})
+
+-- C-g as ESC
+vim.api.nvim_set_keymap('n', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('i', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('v', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('s', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('x', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('c', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('o', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('l', '<C-g>', '<ESC>', {noremap = true, silent = true})
+vim.api.nvim_set_keymap('t', '<C-g>', '<ESC>', {noremap = true, silent = true})
+
+-- Quick save.
+vim.api.nvim_set_keymap('n', '<Leader>fw', ':w<CR>', {silent = true})
+
+-- Toggle between buffesr.
+vim.api.nvim_set_keymap('n', '<Leader><Leader>', '<C-^>', {noremap = true, silent = true})
+
+vim.api.nvim_set_keymap('n', '<Leader>ff', ':Files<CR>',{})
+vim.api.nvim_set_keymap('n', '<Leader>bs', ':Buffers<CR>',{})
+vim.api.nvim_set_keymap('n', '<Leader>ps', ':Rg<CR>', {noremap = true})

lua/lsp/init.lua

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+vim.cmd('nnoremap <silent> gd <cmd>lua vim.lsp.buf.definition()<CR>')
+vim.cmd('nnoremap <silent> gD <cmd>lua vim.lsp.buf.declaration()<CR>')
+vim.cmd('nnoremap <silent> gr <cmd>lua vim.lsp.buf.references()<CR>')
+vim.cmd('nnoremap <silent> gi <cmd>lua vim.lsp.buf.implementation()<CR>')
+
+vim.cmd('nnoremap <silent> K <cmd>lua vim.lsp.buf.hover()<CR>')
+
+-- scroll down hover doc or scroll in definition preview
+vim.cmd('nnoremap <silent> <C-f> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(1)<CR>')
+-- scroll up hover doc
+vim.cmd('nnoremap <silent> <C-b> <cmd>lua require(\'lspsaga.action\').smart_scroll_with_saga(-1)<CR>')

lua/lsp/python-ls.lua

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+require'lspconfig'.pyright.setup{}
+

lua/lsp/typescript-ls.lua

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+require'lspconfig'.tsserver.setup{}
+

lua/nv-compe/init.lua

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+vim.o.completeopt = "menuone,noselect"
+
+require'compe'.setup {
+  enabled = true;
+  autocomplete = true;
+  debug = false;
+  min_length = 1;
+  preselect = 'enable';
+  throttle_time = 80;
+  source_timeout = 200;
+  incomplete_delay = 400;
+  max_abbr_width = 100;
+  max_kind_width = 100;
+  max_menu_width = 100;
+  documentation = false;
+
+  source = {
+    path = true;
+    buffer = true;
+    calc = true;
+    vsnip = true;
+    nvim_lsp = true;
+    nvim_lua = true;
+    tags = true;
+    snippets_nvim = true;
+    treesitter = true;
+  };
+}
+
+local t = function(str)
+  return vim.api.nvim_replace_termcodes(str, true, true, true)
+end
+
+local check_back_space = function()
+    local col = vim.fn.col('.') - 1
+    if col == 0 or vim.fn.getline('.'):sub(col, col):match('%s') then
+        return true
+    else
+        return false
+    end
+end
+
+-- Use (s-)tab to:
+--- move to prev/next item in completion menuone
+--- jump to prev/next snippet's placeholder
+_G.tab_complete_only = function()
+  if vim.fn.pumvisible() == 1 then
+    return t "<C-n>"
+  else
+    return t "<Tab>"
+  end
+end
+_G.tab_complete = function()
+  if vim.fn.pumvisible() == 1 then
+    return t "<C-n>"
+  elseif vim.fn.call("vsnip#available", {1}) == 1 then
+    return t "<Plug>(vsnip-expand-or-jump)"
+  elseif check_back_space() then
+    return t "<Tab>"
+  else
+    return vim.fn['compe#complete']()
+  end
+end
+_G.s_tab_complete = function()
+  if vim.fn.pumvisible() == 1 then
+    return t "<C-p>"
+  elseif vim.fn.call("vsnip#jumpable", {-1}) == 1 then
+    return t "<Plug>(vsnip-jump-prev)"
+  else
+    return t "<S-Tab>"
+  end
+end
+
+vim.api.nvim_set_keymap("i", "<C-j>", "v:lua.tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("s", "<C-j>", "v:lua.tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("i", "<Tab>", "v:lua.tab_complete_only()", {expr = true})
+vim.api.nvim_set_keymap("s", "<Tab>", "v:lua.tab_complete_only()", {expr = true})
+vim.api.nvim_set_keymap("i", "<C-k>", "v:lua.s_tab_complete()", {expr = true})
+vim.api.nvim_set_keymap("s", "<C-k>", "v:lua.s_tab_complete()", {expr = true})

lua/nv-prettier/init.lua

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+vim.g["prettier#autoformat"] = 1
+vim.g["prettier#autoformat_require_pragma"] = 0
+vim.g["prettier#exec_cmd_async"] = 1
+

lua/plugins.lua

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+local execute = vim.api.nvim_command
+local fn = vim.fn
+
+local install_path = fn.stdpath('data') .. '/site/pack/packer/start/packer.nvim'
+
+if fn.empty(fn.glob(install_path)) > 0 then
+    execute('!git clone https://github.com/wbthomason/packer.nvim ' .. install_path)
+    execute 'packadd packer.nvim'
+end
+
+return require('packer').startup(function(use)
+    -- Packer can manage itself as an optional plugin
+    use 'wbthomason/packer.nvim'
+
+    -- LSP
+    use 'neovim/nvim-lspconfig'
+    use 'glepnir/lspsaga.nvim'
+
+    -- Autocomplete
+    use 'hrsh7th/nvim-compe'
+    
+    -- Theme
+    use 'drewtempelmeyer/palenight.vim'
+    use 'kyazdani42/nvim-web-devicons'
+
+    -- Syntax
+    use 'sheerun/vim-polyglot'
+    use {'prettier/vim-prettier', run = "yarn install"}
+    
+    -- FZF
+    use '/usr/local/opt/fzf'
+    use 'junegunn/fzf.vim'
+
+    use {
+      'nvim-telescope/telescope.nvim',
+      requires = {{'nvim-lua/popup.nvim'}, {'nvim-lua/plenary.nvim'}}
+    }
+
+    use 'jiangmiao/auto-pairs'
+    use 'itchyny/lightline.vim'
+
+    end)

lua/settings.lua

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+vim.api.nvim_set_option('signcolumn', 'yes')
+vim.cmd(":set number relativenumber")