diff --git a/nvim-config/coc-settings.json b/nvim-config/coc-settings.json
deleted file mode 100644
index 2ebdeae..0000000
--- a/nvim-config/coc-settings.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "languageserver": {
-    "haskell": {
-      "command": "haskell-language-server-wrapper",
-      "args": ["--lsp"],
-      "rootPatterns": ["*.cabal", "stack.yaml", "cabal.project", "package.yaml", "hie.yaml"],
-      "filetypes": ["haskell", "lhaskell"]
-    }
-  },
-  "coc.source.iced.enable": true,
-  "coc.preferences.formatOnSaveFiletypes": ["css","markdown"],
-  "diagnostic-languageserver.filetypes": {
-    "vim": "vint",
-    "email": "languagetool",
-    "markdown": [ "write-good", "markdownlint" ],
-    "sh": "shellcheck",
-    "bash": "shellcheck",
-    "elixir": ["mix_credo", "mix_credo_compile"],
-    "eelixir": ["mix_credo", "mix_credo_compile"],
-    "php": ["phpstan", "psalm"],
-    "yaml": [ "yamllint" ],
-    "cmake": [ "cmake-lint", "cmakelint" ],
-    "systemd": "systemd-analyze"
-  },
-  "diagnostic-languageserver.formatFiletypes": {
-    "dart": "dartfmt",
-    "elixir": "mix_format",
-    "eelixir": "mix_format",
-    "python": ["black", "isort"],
-    "lua": "lua-format",
-    "sh": "shfmt",
-    "bash": "shfmt",
-    "blade": "blade-formatter",
-    "cmake": "cmake-format"
-  }
-}
diff --git a/nvim-config/init.vim b/nvim-config/init.vim
index 1ec7f6c..4f0cbbf 100644
--- a/nvim-config/init.vim
+++ b/nvim-config/init.vim
@@ -60,13 +60,6 @@ Plug 'mhinz/vim-sayonara'
 " Session-Management
 Plug 'xolox/vim-session' | Plug 'xolox/vim-misc'
 
-" CoC
-Plug 'neoclide/coc.nvim', {'branch': 'release'}
-
-" Clojure
-Plug 'guns/vim-sexp', {'for': 'clojure'}
-Plug 'liquidz/vim-iced', {'for': 'clojure'}
-Plug 'liquidz/vim-iced-coc-source', {'for': 'clojure'}
 
 " todo.txt
 Plug 'freitass/todo.txt-vim'
@@ -74,14 +67,21 @@ Plug 'freitass/todo.txt-vim'
 " LSP
 Plug 'williamboman/mason.nvim'
 Plug 'williamboman/mason-lspconfig.nvim'
-Plug 'neovim/nvim-lspconfig', {'branch': 'v0.1.6'}
+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 'onsails/lspkind.nvim'
+
+" For vsnip users.
+Plug 'hrsh7th/cmp-vsnip'
+Plug 'hrsh7th/vim-vsnip'
 
-" Go
-Plug 'fatih/vim-go', {'do':':GoUpdateBinaries'}
 call plug#end()
 
-
-" SETTINGS
+" GENERAL VIM SETUP
 
 " set leader to space
 let mapleader= "\<SPACE>"
@@ -119,7 +119,7 @@ set smartcase           " ... unless the query has capital letters.
 set incsearch           " Incremental search.
 set gdefault            " Use 'g' flag by default with :s/foo/bar/.
 set magic               " Use 'magic' patterns (extended regular expressions).
-"set inccommand=nosplit  " Use live-preview of search/replace etc.
+set inccommand=nosplit  " Use live-preview of search/replace etc.
 set conceallevel=2      " Allow things to be visually opressed (i.e. *foo* be italic)
 set mouse=a             " enable mouse
 set foldenable          " enable folding
@@ -133,46 +133,13 @@ set hidden
 
 let g:loaded_perl_provider = 0
 
-" LSP Config
-
-lua << EOF
-require("mason").setup()
-require("mason-lspconfig").setup()
-EOF
-
-" Use <C-L> to clear the highlighting of :set hlsearch.
-if maparg('<C-L>', 'n') ==# ''
-  nnoremap <silent> <C-L> :nohlsearch<CR><C-L>
-endif
-
 " Remember cursor position between vim sessions
-  autocmd BufReadPost *
-              \ if line("'\"") > 0 && line ("'\"") <= line("$") |
-              \   exe "normal! g'\"" |
-              \ endif
-              " center buffer around cursor when opening files
-  autocmd BufRead * normal zz
-
-
-"" KEY-BINDINGS
-
-" use <TAB> to fold/unfold
-
-nnoremap <TAB> za
-
-" <Tab>: completion
-function! CheckBackSpace() abort
-    let col = col('.') - 1
-    return !col || getline('.')[col - 1] =~ '\s'
-endfunction
-inoremap <silent><expr> <Tab>
-    \ pumvisible() ? "\<C-N>" :
-    \ CheckBackSpace() ? "\<Tab>" :
-    \ coc#refresh()
-" <S-Tab>: completion back
-inoremap <silent><expr> <S-Tab> pumvisible() ? "\<C-P>" : "\<C-H>"
-" <CR>: confirm completion, or insert <CR>
-inoremap <expr> <CR> pumvisible() ? "\<C-Y>" : "\<CR>"
+autocmd BufReadPost *
+            \ if line("'\"") > 0 && line ("'\"") <= line("$") |
+            \   exe "normal! g'\"" |
+            \ endif
+            " center buffer around cursor when opening files
+autocmd BufRead * normal zz
 
 " use <C-J> to Jump to definition instead of <C-]> (default)
 nmap <C-J> <C-]>
@@ -184,129 +151,204 @@ inoremap <C-D> <esc>ddi
 
 tnoremap <C-t><C-t> <C-\><C-n>
 
-""""""""""""""""""""""""""""""""""""""""""""" Coc Keys
-" Use `[g` and `]g` to navigate diagnostics
-" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list
-nmap <silent> [g <Plug>(coc-diagnostic-prev)
-nmap <silent> ]g <Plug>(coc-diagnostic-next)
+" FANCY NEOVIM-MAGIC
 
-" GoTo code navigation
-nmap <silent> gd <Plug>(coc-definition)
-nmap <silent> gy <Plug>(coc-type-definition)
-nmap <silent> gi <Plug>(coc-implementation)
-nmap <silent> gr <Plug>(coc-references)
+" setup mason, language-server & nvim-cmp for completion
+lua <<EOF
 
-" Use K to show documentation in preview window
-nnoremap <silent> K :call ShowDocumentation()<CR>
+  require("mason").setup()
+  require("mason-lspconfig").setup()
 
-function! ShowDocumentation()
-  if CocAction('hasProvider', 'hover')
-    call CocActionAsync('doHover')
-  else
-    call feedkeys('K', 'in')
-  endif
-endfunction
+  local has_words_before = function()
+    unpack = unpack or table.unpack
+    local line, col = unpack(vim.api.nvim_win_get_cursor(0))
+    return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
+  end
 
-" Highlight the symbol and its references when holding the cursor
-autocmd CursorHold * silent call CocActionAsync('highlight')
+  local feedkey = function(key, mode)
+    vim.api.nvim_feedkeys(vim.api.nvim_replace_termcodes(key, true, true, true), mode, true)
+  end
 
-" Symbol renaming
-nmap <leader>rn <Plug>(coc-rename)
+  -- Set up nvim-cmp.
+  local cmp = require'cmp'
+  local lspkind = require'lspkind'
 
-" Formatting selected code
-xmap <leader>f  <Plug>(coc-format-selected)
-nmap <leader>f  <Plug>(coc-format-selected)
+  cmp.setup({
+    snippet = {
+      -- REQUIRED - you must specify a snippet engine
+      expand = function(args)
+        vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
+        -- require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
+        -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
+        -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
+      end,
+    formatting = {
+        format = lspkind.cmp_format(),
+      },
+    },
+    window = {
+      -- completion = cmp.config.window.bordered(),
+      -- documentation = cmp.config.window.bordered(),
+    },
+    mapping = cmp.mapping.preset.insert({
+      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+      ['<C-f>'] = cmp.mapping.scroll_docs(4),
+      ['<C-Space>'] = cmp.mapping.complete(),
+      ['<C-e>'] = cmp.mapping.abort(),
+      ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
+      ["<Tab>"] = cmp.mapping(function(fallback)
+        if cmp.visible() then
+          if #cmp.get_entries() == 1 then
+            cmp.confirm({ select = true })
+          else
+            cmp.select_next_item()
+          end
+        elseif vim.fn["vsnip#available"](1) == 1 then
+          feedkey("<Plug>(vsnip-expand-or-jump)", "")
+        elseif has_words_before() then
+          cmp.complete()
+          if #cmp.get_entries() == 1 then
+            cmp.confirm({ select = true })
+          end
+        else
+          fallback() -- The fallback function sends a already mapped key. In this case, it's probably `<Tab>`.
+        end
+      end, { "i", "s" }),
 
-augroup mygroup
-  autocmd!
-  " Setup formatexpr specified filetype(s)
-  autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
-  " Update signature help on jump placeholder
-  autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
-augroup end
+      ["<S-Tab>"] = cmp.mapping(function()
+        if cmp.visible() then
+          cmp.select_prev_item()
+        elseif vim.fn["vsnip#jumpable"](-1) == 1 then
+          feedkey("<Plug>(vsnip-jump-prev)", "")
+        end
+      end, { "i", "s" }),
 
-" Applying code actions to the selected code block
-" Example: `<leader>aap` for current paragraph
-xmap <leader>a  <Plug>(coc-codeaction-selected)
-nmap <leader>a  <Plug>(coc-codeaction-selected)
+    }),
+    sources = cmp.config.sources({
+      { name = 'nvim_lsp' },
+      { name = 'vsnip' }, -- For vsnip users.
+      -- { name = 'luasnip' }, -- For luasnip users.
+      -- { name = 'ultisnips' }, -- For ultisnips users.
+      -- { name = 'snippy' }, -- For snippy users.
+    }, {
+      { name = 'buffer' },
+    })
+  })
 
-" Remap keys for applying code actions at the cursor position
-nmap <leader>ac  <Plug>(coc-codeaction-cursor)
-" Remap keys for apply code actions affect whole buffer
-nmap <leader>as  <Plug>(coc-codeaction-source)
-" Apply the most preferred quickfix action to fix diagnostic on the current line
-nmap <leader>qf  <Plug>(coc-fix-current)
+  -- Set configuration for specific filetype.
+  cmp.setup.filetype('gitcommit', {
+    sources = cmp.config.sources({
+      { name = 'git' }, -- You can specify the `git` source if [you were installed it](https://github.com/petertriho/cmp-git).
+    }, {
+      { name = 'buffer' },
+    })
+  })
 
-" Remap keys for applying refactor code actions
-nmap <silent> <leader>re <Plug>(coc-codeaction-refactor)
-xmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
-nmap <silent> <leader>r  <Plug>(coc-codeaction-refactor-selected)
+  -- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
+  cmp.setup.cmdline({ '/', '?' }, {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = {
+      { name = 'buffer' }
+    }
+  })
 
-" Run the Code Lens action on the current line
-nmap <leader>cl  <Plug>(coc-codelens-action)
+  -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
+  cmp.setup.cmdline(':', {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = cmp.config.sources({
+      { name = 'path' }
+    }, {
+      { name = 'cmdline' }
+    })
+  })
 
-" Map function and class text objects
-" NOTE: Requires 'textDocument.documentSymbol' support from the language server
-xmap if <Plug>(coc-funcobj-i)
-omap if <Plug>(coc-funcobj-i)
-xmap af <Plug>(coc-funcobj-a)
-omap af <Plug>(coc-funcobj-a)
-xmap ic <Plug>(coc-classobj-i)
-omap ic <Plug>(coc-classobj-i)
-xmap ac <Plug>(coc-classobj-a)
-omap ac <Plug>(coc-classobj-a)
+  -- Set up lspconfig.
+  local capabilities = require('cmp_nvim_lsp').default_capabilities()
 
-" Remap <C-f> and <C-b> to scroll float windows/popups
-if has('nvim-0.4.0') || has('patch-8.2.0750')
-  nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
-  nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
-  inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
-  inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
-  vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
-  vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
-endif
+  local on_attach = function(client, bufnr)
+    local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
+    local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end
 
-" Use CTRL-S for selections ranges
-" Requires 'textDocument/selectionRange' support of language server
-nmap <silent> <C-s> <Plug>(coc-range-select)
-xmap <silent> <C-s> <Plug>(coc-range-select)
+    buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')
+  end
 
-" Add `:Format` command to format current buffer
-command! -nargs=0 Format :call CocActionAsync('format')
+  require("lspconfig").gopls.setup {
+    cmd = {'gopls'},
+    -- on_attach = on_attach,
+    capabilities = capabilities,
+    settings = {
+      gopls = {
+        experimentalPostfixCompletions = true,
+        analyses = {
+          unusedparams = true,
+          shadow = true,
+        },
+        staticcheck = true,
+      },
+    },
+    init_options = {
+      usePlaceholders = true,
+    }
+  }
+  require("lspconfig").eslint.setup {}
+  require("lspconfig").jsonls.setup {}
+  require("lspconfig").tsserver.setup {}
+  require("lspconfig").ast_grep.setup {}
+  require("lspconfig").golangci_lint_ls.setup {}
 
-" Add `:Fold` command to fold current buffer
-command! -nargs=? Fold :call     CocAction('fold', <f-args>)
+  function swallow_output(callback, ...) 
+    local old_print = print
+    print = function(...) end
 
-" Add `:OR` command for organize imports of the current buffer
-command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.organizeImport')
+    pcall(callback, arg)
 
-" Add (Neo)Vim's native statusline support
-" NOTE: Please see `:h coc-status` for integrations with external plugins that
-" provide custom statusline: lightline.vim, vim-airline
-set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}
+    print = old_print
+  end
 
-" Mappings for CoCList
-" Show all diagnostics
-nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
-" Manage extensions
-nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
-" Show commands
-nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
-" Find symbol of current document
-nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
-" Search workspace symbols
-nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
-" Do default action for next item
-nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
-" Do default action for previous item
-nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
-" Resume latest coc list
-nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>
+  -- See `:help vim.diagnostic.*` for documentation on any of the below functions
+  vim.keymap.set('n', '<space>e', vim.diagnostic.open_float)
+  vim.keymap.set('n', '[d', vim.diagnostic.goto_prev)
+  vim.keymap.set('n', ']d', vim.diagnostic.goto_next)
+  vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist)
+
+  -- Use LspAttach autocommand to only map the following keys
+  -- after the language server attaches to the current buffer
+  vim.api.nvim_create_autocmd('LspAttach', {
+    group = vim.api.nvim_create_augroup('UserLspConfig', {}),
+    callback = function(ev)
+
+      -- Buffer local mappings.
+      -- See `:help vim.lsp.*` for documentation on any of the below functions
+      local opts = { buffer = ev.buf }
+      vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
+      vim.keymap.set('n', 'gd', vim.lsp.buf.definition, opts)
+      vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
+      vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, opts)
+      vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, opts)
+      vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, opts)
+      vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, opts)
+      vim.keymap.set('n', '<space>wl', function()
+        print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+      end, opts)
+      vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, opts)
+      vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, opts)
+      vim.keymap.set({ 'n', 'v' }, '<space>ca', vim.lsp.buf.code_action, opts)
+      vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
+      vim.keymap.set('v', '<space>f', function()
+        vim.lsp.buf.format { async = true }
+      end, opts)
+      vim.api.nvim_create_autocmd('BufWrite', {
+        callback = function(ev)
+          vim.lsp.buf.format { async = false }
+        end
+      })
+    end,
+  })
+EOF
+
+"" KEY-BINDINGS
 
-""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 
-" autoformat code if possible (read docs on vim-autoformat!)
-"noremap <leader>f :Autoformat<CR>
 noremap <leader>TM :TableModeToggle<CR>
 
 " multi-cursor