diff --git a/config/vim/init.vim b/config/vim/init.vim
index f2f9650..485d2a8 100644
--- a/config/vim/init.vim
+++ b/config/vim/init.vim
@@ -1,39 +1,43 @@
-vim9script
 set encoding=utf-8
 scriptencoding utf-8
 
-def EnsureDir(dir: string): void
-  if filewritable(dir) != 2
-    mkdir(dir, "p", 0700)
+function! s:ensure_dir(dir)
+  if filewritable(a:dir) != 2
+    call mkdir(a:dir, "p", 0700)
   endif
-enddef
+endfunction
 
-# These are really clever - minpac will actually be loaded on the fly only
-# when you need to update or clean your packages, rather than all the time.
-command! PackUpdate source $XDG_CONFIG_HOME/vim/plugins.vim | minpac#update()
-command! PackClean  source $XDG_CONFIG_HOME/vim/plugins.vim | minpac#clean()
-command! PackStatus source $XDG_CONFIG_HOME/vim/plugins.vim | minpac#status()
+if exists('+packpath')
+  " These are really clever - minpac will actually be loaded on the fly only
+  " when you need to update or clean your packages, rather than all the time.
+  command! PackUpdate source $XDG_CONFIG_HOME/vim/plugins.vim | call minpac#update()
+  command! PackClean  source $XDG_CONFIG_HOME/vim/plugins.vim | call minpac#clean()
+  command! PackStatus source $XDG_CONFIG_HOME/vim/plugins.vim | call minpac#status()
 
-# If the pack directory doesn't exist, we haven't installed any packages yet,
-# so let's call PackUpdate.
-if !isdirectory($XDG_CACHE_HOME .. '/vim/pack')
-  PackUpdate
+  " If the pack directory doesn't exist, we haven't installed any packages yet,
+  " so let's call PackUpdate.
+  if !isdirectory($XDG_CACHE_HOME . '/vim/pack')
+    PackUpdate
+  endif
+else
+  " If we're on a version of Vim that doesn't have packages, we have to load a
+  " plugin manager (vim-plug) on every boot.
+  source $XDG_CONFIG_HOME/vim/plugins.vim
 endif
 
 augroup transparent_term
   autocmd!
   autocmd ColorScheme * highlight Normal ctermbg=NONE guibg=NONE
 augroup END
-
 set background=dark
-g:gruvbox_italic = 1
-g:gruvbox_improved_strings = 1
-g:gruvbox_improved_warnings = 1
+let g:gruvbox_italic=1
+let g:gruvbox_improved_strings=1
+let g:gruvbox_improved_warnings=1
 
 if has('gui_running') || has('termguicolors')
   set termguicolors
   silent! packadd gruvbox
-  g:airline_theme = 'gruvbox'
+  let g:airline_theme = 'gruvbox'
   colorscheme gruvbox
 else
   colorscheme inkpot
@@ -53,9 +57,6 @@ set linebreak showbreak=↩
 set modelines=5
 set showcmd
 set wildmode=longest,full
-if has('patch-8.2.4325')
-  set wildoptions+=pum
-endif
 
 set tabstop=2 shiftwidth=2
 
@@ -69,8 +70,8 @@ else
   set number
 endif
 
-for dir in ['backup', 'swap', 'undo']
-  EnsureDir($XDG_STATE_HOME .. '/vim/' .. dir)
+for s:dir in ['backup', 'swap', 'undo']
+  call s:ensure_dir($XDG_STATE_HOME . '/vim/' . s:dir)
 endfor
 
 set backupdir=.,$XDG_STATE_HOME/vim/backup
@@ -80,22 +81,22 @@ if exists('+undofile')
   set undodir=$XDG_STATE_HOME/vim/undo
 endif
 
-g:airline_powerline_fonts = 1
-g:airline#extensions#battery#enabled = 1
+let g:airline_powerline_fonts = 1
+let g:airline#extensions#battery#enabled = 1
 
-g:csv_no_conceal = 1
+let g:csv_no_conceal = 1
 
-g:vim_svelte_plugin_use_typescript = 1
+let vim_svelte_plugin_use_typescript = 1
 
-g:LatexBox_Folding = 1
-g:NERDTreeHijackNetrw = 1
+let g:LatexBox_Folding = 1
+let g:NERDTreeHijackNetrw = 1
 
-g:ale_set_balloons = 1
+let g:ale_set_balloons = 1
 nmap <silent> <C-k> <Plug>(ale_previous_wrap)
 nmap <silent> <C-j> <Plug>(ale_next_wrap)
 
-g:mucomplete#can_complete = {
-  default: {
-    omni: (t) => strlen(&l:omnifunc) > 0 && t =~# '\m\k\%(\k\|\.\)$'
-  }
-}
+let g:mucomplete#can_complete = {
+  \'default': {
+    \'omni': {t -> strlen(&l:omnifunc) > 0 && t =~# '\m\k\%(\k\|\.\)$'}
+  \}
+\}
diff --git a/config/vim/plugins.vim b/config/vim/plugins.vim
index 4ee833b..ffcdef0 100644
--- a/config/vim/plugins.vim
+++ b/config/vim/plugins.vim
@@ -1,87 +1,116 @@
-vim9script
-silent! packadd minpac
-if !exists('g:loaded_minpac')
-  silent !git clone https://github.com/k-takata/minpac.git $XDG_CACHE_HOME/vim/pack/minpac/opt/minpac
-  augroup minpac {
-    autocmd!
-    autocmd VimEnter * call minpac#update()
-  }
+if exists('+packpath')
+  silent! packadd minpac
+  if !exists('g:loaded_minpac')
+    silent !git clone https://github.com/k-takata/minpac.git $XDG_CACHE_HOME/vim/pack/minpac/opt/minpac
+    augroup minpac
+      autocmd!
+      autocmd VimEnter * call minpac#update()
+    augroup END
+  endif
+
+  function! Plug(...)
+    call call('minpac#add', a:000)
+  endfunction
+
+  function! PlugEnd()
+  endfunction
+
+  packadd minpac
+
+  call minpac#init({'dir': $XDG_CACHE_HOME . '/vim'})
+else
+  if !filereadable($XDG_CACHE_HOME . '/vim/autoload/plug.vim')
+    silent !curl -fLo $XDG_CACHE_HOME/vim/autoload/plug.vim --create-dirs 'https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim'
+    augroup vimplug
+      autocmd VimEnter * PlugInstall
+    augroup END
+  endif
+
+  function! Plug(name, ...)
+    call plug#(a:name)
+  endfunction
+
+  function! PlugEnd()
+    call plug#end()
+  endfunction
+
+  call plug#begin($XDG_CACHE_HOME . '/vim/plugged')
 endif
-packadd minpac
 
-minpac#init({dir: $XDG_CACHE_HOME .. '/vim'})
-minpac#add('k-takata/minpac', {type: 'opt'})
-minpac#add('tpope/vim-sensible')
-minpac#add('prabirshrestha/async.vim')
+call Plug('k-takata/minpac', {'type': 'opt'})
+call Plug('tpope/vim-sensible')
+call Plug('prabirshrestha/async.vim')
 
-minpac#add('ciaranm/inkpot', {type: 'opt', do: 'colorscheme inkpot'})
-minpac#add('morhetz/gruvbox', {type: 'opt'})
+call Plug('ciaranm/inkpot', {'type': 'opt', 'do': 'colorscheme inkpot'})
+call Plug('morhetz/gruvbox', {'type': 'opt'})
 
-minpac#add('direnv/direnv.vim')
-minpac#add('editorconfig/editorconfig-vim')
-minpac#add('godlygeek/tabular')
-minpac#add('jamessan/vim-gnupg')
-minpac#add('junegunn/vim-easy-align')
-minpac#add('lifepillar/vim-mucomplete')
-minpac#add('lotabout/skim')
-minpac#add('lotabout/skim.vim')
-minpac#add('mhinz/vim-signify')
-minpac#add('scrooloose/nerdtree')
-minpac#add('sjl/vitality.vim')
-minpac#add('tpope/vim-apathy')
-minpac#add('tpope/vim-commentary')
-minpac#add('tpope/vim-dadbod')
-minpac#add('tpope/vim-endwise')
-minpac#add('tpope/vim-eunuch')
-minpac#add('tpope/vim-fugitive')
-minpac#add('tpope/vim-repeat')
-minpac#add('tpope/vim-rhubarb')
-minpac#add('tpope/vim-sleuth')
-minpac#add('tpope/vim-surround')
-minpac#add('tpope/vim-unimpaired')
+call Plug('direnv/direnv.vim')
+call Plug('editorconfig/editorconfig-vim')
+call Plug('godlygeek/tabular')
+call Plug('jamessan/vim-gnupg')
+call Plug('junegunn/vim-easy-align')
+call Plug('lifepillar/vim-mucomplete')
+call Plug('lotabout/skim')
+call Plug('lotabout/skim.vim')
+call Plug('mhinz/vim-signify')
+call Plug('scrooloose/nerdtree')
+call Plug('sjl/vitality.vim')
+call Plug('tpope/vim-apathy')
+call Plug('tpope/vim-commentary')
+call Plug('tpope/vim-dadbod')
+call Plug('tpope/vim-endwise')
+call Plug('tpope/vim-eunuch')
+call Plug('tpope/vim-fugitive')
+call Plug('tpope/vim-repeat')
+call Plug('tpope/vim-rhubarb')
+call Plug('tpope/vim-sleuth')
+call Plug('tpope/vim-surround')
+call Plug('tpope/vim-unimpaired')
 
-minpac#add('wincent/loupe')
-minpac#add('wincent/terminus')
-minpac#add('w0rp/ale')
+call Plug('wincent/loupe')
+call Plug('wincent/terminus')
+call Plug('w0rp/ale')
 
-minpac#add('neoclide/coc.nvim', {branch: 'release'})
+call Plug('neoclide/coc.nvim', {'branch': 'release'})
 
-minpac#add('vim-airline/vim-airline')
-minpac#add('vim-airline/vim-airline-themes')
-minpac#add('lambdalisue/battery.vim')
+call Plug('vim-airline/vim-airline')
+call Plug('vim-airline/vim-airline-themes')
+call Plug('lambdalisue/battery.vim')
 
-minpac#add('alvan/vim-closetag')
-minpac#add('LaTeX-Box-Team/LaTeX-Box')
-minpac#add('vhda/verilog_systemverilog.vim')
-minpac#add('sheerun/vim-polyglot')
+call Plug('alvan/vim-closetag')
+call Plug('LaTeX-Box-Team/LaTeX-Box')
+call Plug('vhda/verilog_systemverilog.vim')
+call Plug('sheerun/vim-polyglot')
 
-minpac#add('eipipuz/factor.vim')
+call Plug('eipipuz/factor.vim')
 
-minpac#add('ehamberg/vim-cute-python')
-minpac#add('Glench/Vim-Jinja2-Syntax')
-minpac#add('tweekmonster/braceless.vim')
+call Plug('ehamberg/vim-cute-python')
+call Plug('Glench/Vim-Jinja2-Syntax')
+call Plug('tweekmonster/braceless.vim')
 
-minpac#add('ternjs/tern_for_vim', {do: () => async#job#start(['npm', 'install'], {})})
-minpac#add('vito-c/jq.vim')
+call Plug('ternjs/tern_for_vim', {'do': {-> async#job#start(['npm', 'install'], {})}})
+call Plug('vito-c/jq.vim')
 
-minpac#add('fladson/vim-kitty')
+call Plug('fladson/vim-kitty')
 
-minpac#add('fpob/nette.vim')
+call Plug('fpob/nette.vim')
 
-minpac#add('leafOfTree/vim-svelte-plugin')
+call Plug('leafOfTree/vim-svelte-plugin')
 
 if executable('task')
-  minpac#add('farseer90718/vim-taskwarrior')
+  call Plug('farseer90718/vim-taskwarrior')
 endif
 
-minpac#add('pedrohdz/vim-yaml-folds')
+call Plug('pedrohdz/vim-yaml-folds')
 
-minpac#add('alx741/yesod.vim')
-minpac#add('pbrisbin/vim-syntax-shakespeare')
+call Plug('alx741/yesod.vim')
+call Plug('pbrisbin/vim-syntax-shakespeare')
 
 if has('macunix')
-  minpac#add('rizzatti/dash.vim')
-  # We rename this plugin to make sure it loads AFTER vim-polyglot,
-  # since it won't work properly if it's loaded first.
-  minpac#add('itspriddle/vim-marked', {name: 'zzvim-marked'})
+  call Plug('rizzatti/dash.vim')
+  " We rename this plugin to make sure it loads AFTER vim-polyglot,
+  " since it won't work properly if it's loaded first.
+  call Plug('itspriddle/vim-marked', {'name': 'zzvim-marked'})
 endif
+
+call PlugEnd()
diff --git a/vimrc b/vimrc
index 7b937a4..fa8d3c2 100644
--- a/vimrc
+++ b/vimrc
@@ -1,13 +1,6 @@
-vim9script
-const xdg = {
-  XDG_CONFIG_HOME: '~/.config',
-  XDG_CACHE_HOME: '~/.cache',
-  XDG_DATA_HOME: '~/.local/share',
-  XDG_STATE_HOME: '~/.local/state',
-}
-for [key, default] in items(xdg)
-  if !has_key(environ(), key)
-    setenv(key, expand(default))
+for [s:var, s:value] in items({'XDG_CONFIG_HOME': '~/.config', 'XDG_CACHE_HOME': '~/.cache', 'XDG_DATA_HOME': '~/.local/share', 'XDG_STATE_HOME': '~/.local/state'})
+  if (empty(eval('$' . s:var)))
+    exec 'let $' . s:var . ' = expand(s:value)'
   endif
 endfor
 
@@ -16,7 +9,7 @@ set viminfo+=n$XDG_STATE_HOME/vim/viminfo
 if exists('+packpath')
   set packpath^=$XDG_CONFIG_HOME/vim,$XDG_CACHE_HOME/vim
 endif
-g:netrw_home = $XDG_CACHE_HOME .. '/vim/netrw'
+let g:netrw_home = $XDG_CACHE_HOME . '/vim/netrw'
 
-$MYVIMRC = $XDG_CONFIG_HOME .. '/vim/init.vim'
+let $MYVIMRC = $XDG_CONFIG_HOME . '/vim/init.vim'
 source $MYVIMRC