Not gook big commit...

conf/nvim/lua/plugins/cmp.lua

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+-- Add additional capabilities supported by nvim-cmp
+local capabilities = vim.lsp.protocol.make_client_capabilities()
+capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
+
+-- nvim-cmp setup
+local cmp = require 'cmp'
+cmp.setup {
+  mapping = {
+    ['<C-p>'] = cmp.mapping.select_prev_item(),
+    ['<C-n>'] = cmp.mapping.select_next_item(),
+    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+    ['<C-f>'] = cmp.mapping.scroll_docs(4),
+    ['<C-Space>'] = cmp.mapping.complete(),
+    ['<C-e>'] = cmp.mapping.close(),
+    ['<CR>'] = cmp.mapping.confirm {
+      behavior = cmp.ConfirmBehavior.Replace,
+      select = true,
+    },
+    ['<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,
+  },
+  sources = {
+    { name = 'nvim_lsp' },
+  },
+}

conf/nvim/lua/plugins/gitsigns.lua

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+require('gitsigns').setup {
+    keymaps = {}, -- NO default keybindings
+}

conf/nvim/lua/plugins/lsp.lua

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+local lspconfig = require('lspconfig')
+
+-- lsp installet
+--
+local lsp_installer = require("nvim-lsp-installer")
+
+-- Register a handler that will be called for each installed server when it's
+-- ready (i.e. when installation is finished
+-- or if the server is already installed).
+lsp_installer.on_server_ready(function(server)
+    local opts = {}
+
+    -- (optional) Customize the options passed to the server
+    -- if server.name == "tsserver" then
+    --     opts.root_dir = function() ... end
+    -- end
+
+    -- This setup() function will take the provided server configuration and
+    -- decorate it with the necessary properties before passing it onwards to 
+    -- lspconfig Refer to :
+    -- https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
+    server:setup(opts)
+end)

conf/nvim/lua/plugins/lualine.lua

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+require('lualine').setup {
+  options = {
+    icons_enabled = true,
+    theme = 'base16',
+    component_separators = { left = '|', right = '|'},
+    section_separators = { left = '', right = ''},
+    disabled_filetypes = {},
+    always_divide_middle = true,
+    globalstatus = false,
+  },
+  sections = {
+    lualine_a = {'mode'},
+    lualine_b = {'branch', 'diff', 'diagnostics'},
+    lualine_c = {'filename'},
+    lualine_x = {'encoding', 'fileformat', 'filetype'},
+    lualine_y = {'progress'},
+    lualine_z = {'location'}
+  },
+  inactive_sections = {
+    lualine_a = {},
+    lualine_b = {},
+    lualine_c = {'filename'},
+    lualine_x = {'location'},
+    lualine_y = {},
+    lualine_z = {}
+  },
+  tabline = {},
+  extensions = {}
+}

conf/nvim/lua/plugins/treesitter.lua

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+-- Tree sitter
+local ts = require 'nvim-treesitter.configs'
+
+ts.setup {
+  ensure_installed = 'maintained',
+  sync_install = false,
+  ignore_install = { 'erlang' },
+  highlight = {
+    enable = true,
+    additional_vim_regex_highlighting = false,
+  }
+}