vim (again)

users/coyote/home.nix

@@ -5,7 +5,10 @@
     username = "coyote";
     homeDirectory = "/home/coyote";
     shell.enableShellIntegration = true;
+
     packages = with pkgs; [
+      # devel
+      nodejs
       # productivity
       libreoffice-fresh
       karp
@@ -26,6 +29,12 @@
       # emulation
       (unstable.bottles.override { removeWarningPopup = true; })
     ];
+
+    file.".vim/coc-settings.json".text = builtins.toJSON {
+      "suggest.noselect" = true;
+      "diagnostic.virtualText" = true;
+      "coc.preferences.formatOnSaveFiletypes" = [ "nix" "json" "javascript" "python" ];
+    };
   };
 
   services.flatpak = {
@@ -37,11 +46,7 @@
     ];
     overrides = {
       global = { Context.sockets = ["wayland" "!x11" "!fallback-x11"]; };
-      settings = {
+      settings.Environment.XCURSOR_PATH = "/run/host/user-share/icons:/run/host/share/icons";
-        Environment = {
-          XCURSOR_PATH = "/run/host/user-share/icons:/run/host/share/icons";
-        };
-      };
     };
   };
 
@@ -79,9 +84,75 @@
         ];    
       };
     };
-    emacs = {
+    vim = {
       enable = true;
-      extraConfig = "-nw";
+      packageConfigurable = pkgs.unstable.vim-full;
+      defaultEditor = true;
+      plugins = with pkgs.vimPlugins.unstable; [
+        indentLine
+        coc-nvim
+      ];
+      extraConfig = ''
+        " Vim configuration
+        set nocompatible
+        set encoding=utf-8
+        set backspace=indent,eol,start
+        set clipboard=unnamedplus
+        set mouse=a
+        set history=1000
+        set updatetime=300
+
+        syntax on
+        set ruler
+        set showcmd
+        set showmode
+        set laststatus=2
+        set wildmenu
+        set wildmode=longest,list,full
+        set ttyfast
+        set lazyredraw
+
+        filetype plugin indent on
+        set autoindent
+        set smartindent
+        set tabstop=4
+        set shiftwidth=4
+        set softtabstop=4
+        set expandtab
+
+        set hlsearch
+        set incsearch
+        set ignorecase
+        set smartcase
+        set showmatch
+
+        " indent guides
+        let g:indentLine_enabled = 1
+        let g:indentLine_char = "|"
+        let g:indentLine_setColors = 1
+
+        " per-language indent settings
+        augroup LanguageSpecificSettings
+          autocmd!
+          autocmd FileType javascript,typescript,html,css,json,nix setlocal tabstop=2 shiftwidth=2 softtabstop=2 expandtab
+          autocmd FileType python,rust,scheme setlocal tabstop=4 shiftwidth=4 softtabstop=4 expandtab
+          autocmd FileType go,make setlocal tabstop=4 shiftwidth=4 noexpandtab
+        augroup END
+
+        " coc.nvim config
+        inoremap <silent><expr> <TAB>
+            \ coc#pum#visible() ? coc#pum#next(1) :
+            \ CheckBackspace() ? "\<Tab>" :
+            \ coc#refresh()
+        inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
+
+        inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm() : "\<CR>"
+
+        function! CheckBackspace() abort
+          let col = col('.') - 1
+          return !col || getline('.')[col - 1]  =~# '\s'
+        endfunction
+      '';
     };
     fastfetch = {
       enable = true;