diff --git a/modules/filetree/nvimtree/config.nix b/modules/filetree/nvimtree/config.nix
index ecb63f8..e2a789f 100644
--- a/modules/filetree/nvimtree/config.nix
+++ b/modules/filetree/nvimtree/config.nix
@@ -24,38 +24,38 @@ in {
     ];
 
     vim.luaConfigRC.nvimtreelua = nvim.dag.entryAnywhere ''
-          ${
+      ${
         lib.optionalString (cfg.openOnSetup) ''
-            -- Open on startup has been deprecated
-            -- see https://github.com/nvim-tree/nvim-tree.lua/wiki/Open-At-Startup
+          -- Open on startup has been deprecated
+          -- see https://github.com/nvim-tree/nvim-tree.lua/wiki/Open-At-Startup
 
-            -- use a nix eval to dynamically insert the open on startup function
-            local function open_nvim_tree(data)
-              local IGNORED_FT = {
-                  "markdown",
-              }
+          -- use a nix eval to dynamically insert the open on startup function
+          local function open_nvim_tree(data)
+            local IGNORED_FT = {
+              "markdown",
+            }
 
-              -- buffer is a real file on the disk
-              local real_file = vim.fn.filereadable(data.file) == 1
+            -- buffer is a real file on the disk
+            local real_file = vim.fn.filereadable(data.file) == 1
 
-              -- buffer is a [No Name]
-               local no_name = data.file == "" and vim.bo[data.buf].buftype == ""
+            -- buffer is a [No Name]
+              local no_name = data.file == "" and vim.bo[data.buf].buftype == ""
 
-              -- &ft
-              local filetype = vim.bo[data.buf].ft
+            -- &ft
+            local filetype = vim.bo[data.buf].ft
 
-              -- only files please
-              if not real_file and not no_name then
-                  return
-              end
+            -- only files please
+            if not real_file and not no_name then
+              return
+            end
 
-              -- skip ignored filetypes
-              if vim.tbl_contains(IGNORED_FT, filetype) then
-                  return
-              end
+            -- skip ignored filetypes
+            if vim.tbl_contains(IGNORED_FT, filetype) then
+              return
+            end
 
-              -- open the tree but don't focus it
-              require("nvim-tree.api").tree.toggle({ focus = false })
+            -- open the tree but don't focus it
+            require("nvim-tree.api").tree.toggle({ focus = false })
           end
 
           -- function to automatically open the tree on VimEnter
@@ -63,86 +63,86 @@ in {
         ''
       }
 
-          ${
+      ${
         lib.optionalString (cfg.disableNetrw) ''
           vim.g.loaded_netrw = 1
           vim.g.loaded_netrwPlugin = 1
         ''
       }
 
-        require'nvim-tree'.setup({
-          disable_netrw = ${boolToString cfg.disableNetrw},
-          hijack_netrw = ${boolToString cfg.hijackNetrw},
-          auto_reload_on_write = ${boolToString cfg.autoreloadOnWrite},
-          
-          sort = {
-            sorter = "${cfg.sort.sorter}",
-            folders_first = ${boolToString cfg.sort.foldersFirst},
+      require'nvim-tree'.setup({
+        disable_netrw = ${boolToString cfg.disableNetrw},
+        hijack_netrw = ${boolToString cfg.hijackNetrw},
+        auto_reload_on_write = ${boolToString cfg.autoreloadOnWrite},
+
+        sort = {
+          sorter = "${cfg.sort.sorter}",
+          folders_first = ${boolToString cfg.sort.foldersFirst},
+        },
+
+        hijack_unnamed_buffer_when_opening = ${boolToString cfg.hijackUnnamedBufferWhenOpening},
+        hijack_cursor = ${boolToString cfg.hijackCursor},
+        root_dirs = ${nvim.lua.listToLuaTable cfg.rootDirs},
+        prefer_startup_root = ${boolToString cfg.preferStartupRoot},
+        sync_root_with_cwd = ${boolToString cfg.syncRootWithCwd},
+        reload_on_bufenter = ${boolToString cfg.reloadOnBufEnter},
+        respect_buf_cwd = ${boolToString cfg.respectBufCwd},
+
+        hijack_directories = {
+          enable = ${boolToString cfg.hijackDirectories.enable},
+          auto_open = ${boolToString cfg.hijackDirectories.autoOpen},
+        },
+
+        update_focused_file = {
+          enable = ${boolToString cfg.updateFocusedFile.enable},
+          update_root = ${boolToString cfg.updateFocusedFile.updateRoot},
+          ignore_list = ${nvim.lua.listToLuaTable cfg.updateFocusedFile.ignoreList},
+        },
+
+        system_open = {
+          cmd = "${cfg.systemOpen.cmd}",
+          args = ${nvim.lua.listToLuaTable cfg.systemOpen.args},
+        },
+
+        diagnostics = {
+          enable = ${boolToString cfg.diagnostics.enable},
+          icons = {
+            hint = "${cfg.diagnostics.icons.hint}",
+            info = "${cfg.diagnostics.icons.info}",
+            warning = "${cfg.diagnostics.icons.warning}",
+            error = "${cfg.diagnostics.icons.error}",
           },
 
-          hijack_unnamed_buffer_when_opening = ${boolToString cfg.hijackUnnamedBufferWhenOpening},
-          hijack_cursor = ${boolToString cfg.hijackCursor},
-          root_dirs = ${nvim.lua.listToLuaTable cfg.rootDirs},
-          prefer_startup_root = ${boolToString cfg.preferStartupRoot},
-          sync_root_with_cwd = ${boolToString cfg.syncRootWithCwd},
-          reload_on_bufenter = ${boolToString cfg.reloadOnBufEnter},
-          respect_buf_cwd = ${boolToString cfg.respectBufCwd},
-          
-          hijack_directories = {
-            enable = ${boolToString cfg.hijackDirectories.enable},
-            auto_open = ${boolToString cfg.hijackDirectories.autoOpen},
+          severity = {
+            min = "vim.diagnostic.severity.${cfg.diagnostics.severity.min}",
+            max = "vim.diagnostic.severity.${cfg.diagnostics.severity.max}",
           },
+        },
 
-          update_focused_file = {
-            enable = ${boolToString cfg.updateFocusedFile.enable},
-            update_root = ${boolToString cfg.updateFocusedFile.updateRoot},
-            ignore_list = ${nvim.lua.listToLuaTable cfg.updateFocusedFile.ignoreList},
-          },
+        git = {
+          enable = ${boolToString cfg.git.enable},
+          show_on_dirs = ${boolToString cfg.git.showOnDirs},
+          show_on_open_dirs = ${boolToString cfg.git.showOnOpenDirs},
+          disable_for_dirs = ${nvim.lua.listToLuaTable cfg.git.disableForDirs},
+          timeout = ${toString cfg.git.timeOut},
+        },
 
-          system_open = {
-            cmd = "${cfg.systemOpen.cmd}",
-            args = ${nvim.lua.listToLuaTable cfg.systemOpen.args},
-          },
+        modified = {
+          enable = ${boolToString cfg.modified.enable},
+          show_on_dirs = ${boolToString cfg.modified.showOnDirs},
+          show_on_open_dirs = ${boolToString cfg.modified.showOnOpenDirs},
+        },
 
-          diagnostics = {
-            enable = ${boolToString cfg.diagnostics.enable},
-            icons = {
-              hint = "${cfg.diagnostics.icons.hint}",
-              info = "${cfg.diagnostics.icons.info}",
-              warning = "${cfg.diagnostics.icons.warning}",
-              error = "${cfg.diagnostics.icons.error}",
-            },
+        filesystem_watchers = {
+          enable = ${boolToString cfg.filesystemWatchers.enable},
+          debounce_delay = ${toString cfg.filesystemWatchers.debounceDelay},
+          ignore_dirs = ${nvim.lua.listToLuaTable cfg.filesystemWatchers.ignoreDirs},
+        },
 
-            severity = {
-              min = "vim.diagnostic.severity.${cfg.diagnostics.severity.min}",
-              max = "vim.diagnostic.severity.${cfg.diagnostics.severity.max}",
-            },
-          },
+        select_prompts = ${boolToString cfg.selectPrompts},
 
-          git = {
-            enable = ${boolToString cfg.git.enable},
-            show_on_dirs = ${boolToString cfg.git.showOnDirs},
-            show_on_open_dirs = ${boolToString cfg.git.showOnOpenDirs},
-            disable_for_dirs = ${nvim.lua.listToLuaTable cfg.git.disableForDirs},
-            timeout = ${toString cfg.git.timeOut},
-          },
-
-          modified = {
-            enable = ${boolToString cfg.modified.enable},
-            show_on_dirs = ${boolToString cfg.modified.showOnDirs},
-            show_on_open_dirs = ${boolToString cfg.modified.showOnOpenDirs},
-          },
-
-          filesystem_watchers = {
-            enable = ${boolToString cfg.filesystemWatchers.enable},
-            debounce_delay = ${toString cfg.filesystemWatchers.debounceDelay},
-            ignore_dirs = ${nvim.lua.listToLuaTable cfg.filesystemWatchers.ignoreDirs},
-          },
-
-          select_prompts = ${boolToString cfg.selectPrompts},
-
-          view = {
-            centralize_selection = ${boolToString cfg.view.centralizeSelection},
+        view = {
+          centralize_selection = ${boolToString cfg.view.centralizeSelection},
             cursorline = ${boolToString cfg.view.cursorline},
             debounce_delay = ${toString cfg.view.debounceDelay},
             width = ${nvim.lua.expToLua cfg.view.width},
@@ -164,7 +164,7 @@ in {
               },
             },
           },
-          
+
           renderer = {
             add_trailing = ${boolToString cfg.renderer.addTrailing},
             group_empty = ${boolToString cfg.renderer.groupEmpty},
@@ -179,125 +179,128 @@ in {
               inline_arrows = ${boolToString cfg.renderer.indentMarkers.inlineArrows},
               icons = ${nvim.lua.expToLua cfg.renderer.indentMarkers.icons},
             },
-        
+
             special_files = ${nvim.lua.listToLuaTable cfg.renderer.specialFiles},
-            symlink_destination = ${boolToString cfg.renderer.symlinkDestination},
+              symlink_destination = ${boolToString cfg.renderer.symlinkDestination},
 
-            icons = {
-              webdev_colors = ${boolToString cfg.renderer.icons.webdevColors},
-              git_placement = "${cfg.renderer.icons.gitPlacement}",
-              modified_placement = "${cfg.renderer.icons.modifiedPlacement}",
-              padding = "${cfg.renderer.icons.padding}",
-              symlink_arrow = "${cfg.renderer.icons.symlinkArrow}",
-          
-              show = {
-                git = ${boolToString cfg.renderer.icons.show.git},
-                folder = ${boolToString cfg.renderer.icons.show.folder},
-                folder_arrow = ${boolToString cfg.renderer.icons.show.folderArrow},
-                file = ${boolToString cfg.renderer.icons.show.file},
-                modified = ${boolToString cfg.renderer.icons.show.modified},
-              },
-      
-             glyphs = {
-              default = "${cfg.renderer.icons.glyphs.default}",
-              symlink = "${cfg.renderer.icons.glyphs.symlink}",
-              modified = "${cfg.renderer.icons.glyphs.modified}",
-        
-              folder = {
-                default = "${cfg.renderer.icons.glyphs.folder.default}",
-                open = "${cfg.renderer.icons.glyphs.folder.open}",
-                arrow_open = "${cfg.renderer.icons.glyphs.folder.arrowOpen}",
-                arrow_closed = "${cfg.renderer.icons.glyphs.folder.arrowClosed}",
-                empty = "${cfg.renderer.icons.glyphs.folder.empty}",
-                empty_open = "${cfg.renderer.icons.glyphs.folder.emptyOpen}",
-                symlink = "${cfg.renderer.icons.glyphs.folder.symlink}",
-                symlink_open = "${cfg.renderer.icons.glyphs.folder.symlinkOpen}",
-              },
+              icons = {
+                webdev_colors = ${boolToString cfg.renderer.icons.webdevColors},
+                git_placement = "${cfg.renderer.icons.gitPlacement}",
+                modified_placement = "${cfg.renderer.icons.modifiedPlacement}",
+                padding = "${cfg.renderer.icons.padding}",
+                symlink_arrow = "${cfg.renderer.icons.symlinkArrow}",
 
-              git = {
-                unstaged = "${cfg.renderer.icons.glyphs.git.unstaged}",
-                staged = "${cfg.renderer.icons.glyphs.git.staged}",
-                unmerged = "${cfg.renderer.icons.glyphs.git.unmerged}",
-                renamed = "${cfg.renderer.icons.glyphs.git.renamed}",
-                untracked = "${cfg.renderer.icons.glyphs.git.untracked}",
-                deleted = "${cfg.renderer.icons.glyphs.git.deleted}",
-                ignored = "${cfg.renderer.icons.glyphs.git.ignored}",
+                show = {
+                  git = ${boolToString cfg.renderer.icons.show.git},
+                  folder = ${boolToString cfg.renderer.icons.show.folder},
+                  folder_arrow = ${boolToString cfg.renderer.icons.show.folderArrow},
+                  file = ${boolToString cfg.renderer.icons.show.file},
+                  modified = ${boolToString cfg.renderer.icons.show.modified},
+                },
+
+                glyphs = {
+                  default = "${cfg.renderer.icons.glyphs.default}",
+                  symlink = "${cfg.renderer.icons.glyphs.symlink}",
+                  modified = "${cfg.renderer.icons.glyphs.modified}",
+
+                  folder = {
+                    default = "${cfg.renderer.icons.glyphs.folder.default}",
+                    open = "${cfg.renderer.icons.glyphs.folder.open}",
+                    arrow_open = "${cfg.renderer.icons.glyphs.folder.arrowOpen}",
+                    arrow_closed = "${cfg.renderer.icons.glyphs.folder.arrowClosed}",
+                    empty = "${cfg.renderer.icons.glyphs.folder.empty}",
+                    empty_open = "${cfg.renderer.icons.glyphs.folder.emptyOpen}",
+                    symlink = "${cfg.renderer.icons.glyphs.folder.symlink}",
+                    symlink_open = "${cfg.renderer.icons.glyphs.folder.symlinkOpen}",
+                  },
+
+                  git = {
+                    unstaged = "${cfg.renderer.icons.glyphs.git.unstaged}",
+                    staged = "${cfg.renderer.icons.glyphs.git.staged}",
+                    unmerged = "${cfg.renderer.icons.glyphs.git.unmerged}",
+                    renamed = "${cfg.renderer.icons.glyphs.git.renamed}",
+                    untracked = "${cfg.renderer.icons.glyphs.git.untracked}",
+                    deleted = "${cfg.renderer.icons.glyphs.git.deleted}",
+                    ignored = "${cfg.renderer.icons.glyphs.git.ignored}",
+                  },
+                },
               },
             },
-          },
-        },
-        
-        filters = {
-          git_ignored = ${boolToString cfg.filters.gitIgnored},
-          dotfiles = ${boolToString cfg.filters.dotfiles},
-          git_clean = ${boolToString cfg.filters.gitClean},
-          no_buffer = ${boolToString cfg.filters.noBuffer},
-          exclude = ${nvim.lua.listToLuaTable cfg.filters.exclude},
-        },
-        
-        trash = {
-          cmd = "${cfg.trash.cmd}",
-        },
-        
-        actions = {
-          use_system_clipboard = ${boolToString cfg.actions.useSystemClipboard},
-          change_dir = {
-            enable = ${boolToString cfg.actions.changeDir.enable},
-            global = ${boolToString cfg.actions.changeDir.global},
-            restrict_above_cwd = ${boolToString cfg.actions.changeDir.restrictAboveCwd},
-          },
 
-          expand_all = {
-            max_folder_discovery = ${toString cfg.actions.expandAll.maxFolderDiscovery},
-            exclude = ${nvim.lua.listToLuaTable cfg.actions.expandAll.exclude},
-          },
-      
-          file_popup = {
-            open_win_config = ${nvim.lua.expToLua cfg.actions.filePopup.openWinConfig},
-          },
-      
-          open_file = {
-            quit_on_open = ${boolToString cfg.actions.openFile.quitOnOpen},
-            eject = ${boolToString cfg.actions.openFile.eject},
-            resize_window = ${boolToString cfg.actions.openFile.resizeWindow},
-            window_picker = {
-              enable = ${boolToString cfg.actions.openFile.windowPicker.enable},
-              picker = "${cfg.actions.openFile.windowPicker.picker}",
-              chars = "${cfg.actions.openFile.windowPicker.chars}",
-              exclude = {
-                filetype = ${nvim.lua.listToLuaTable cfg.actions.openFile.windowPicker.exclude.filetype},
-                buftype = ${nvim.lua.listToLuaTable cfg.actions.openFile.windowPicker.exclude.buftype},
+            filters = {
+              git_ignored = ${boolToString cfg.filters.gitIgnored},
+              dotfiles = ${boolToString cfg.filters.dotfiles},
+              git_clean = ${boolToString cfg.filters.gitClean},
+              no_buffer = ${boolToString cfg.filters.noBuffer},
+              exclude = ${nvim.lua.listToLuaTable cfg.filters.exclude},
+            },
+
+            trash = {
+              cmd = "${cfg.trash.cmd}",
+            },
+
+            actions = {
+              use_system_clipboard = ${boolToString cfg.actions.useSystemClipboard},
+              change_dir = {
+                enable = ${boolToString cfg.actions.changeDir.enable},
+                global = ${boolToString cfg.actions.changeDir.global},
+                restrict_above_cwd = ${boolToString cfg.actions.changeDir.restrictAboveCwd},
+              },
+
+              expand_all = {
+                max_folder_discovery = ${toString cfg.actions.expandAll.maxFolderDiscovery},
+                exclude = ${nvim.lua.listToLuaTable cfg.actions.expandAll.exclude},
+              },
+
+              file_popup = {
+                open_win_config = ${nvim.lua.expToLua cfg.actions.filePopup.openWinConfig},
+              },
+
+              open_file = {
+                quit_on_open = ${boolToString cfg.actions.openFile.quitOnOpen},
+                eject = ${boolToString cfg.actions.openFile.eject},
+                resize_window = ${boolToString cfg.actions.openFile.resizeWindow},
+                window_picker = {
+                  enable = ${boolToString cfg.actions.openFile.windowPicker.enable},
+                  picker = "${cfg.actions.openFile.windowPicker.picker}",
+                  chars = "${cfg.actions.openFile.windowPicker.chars}",
+                  exclude = {
+                    filetype = ${nvim.lua.listToLuaTable cfg.actions.openFile.windowPicker.exclude.filetype},
+                    buftype = ${nvim.lua.listToLuaTable cfg.actions.openFile.windowPicker.exclude.buftype},
+                  },
+                },
+              },
+
+              remove_file = {
+                close_window = ${boolToString cfg.actions.removeFile.closeWindow},
               },
             },
-          },
-      
-          remove_file = {
-            close_window = ${boolToString cfg.actions.removeFile.closeWindow},
-          },
-        },
-      
-        live_filter = {
-          prefix = "${cfg.liveFilter.prefix}",
-          always_show_folders = ${boolToString cfg.liveFilter.alwaysShowFolders},
-        },
-      
-        tab = {
-          sync = {
-            open = ${boolToString cfg.tab.sync.open},
-            close = ${boolToString cfg.tab.sync.close},
-            ignore = ${nvim.lua.listToLuaTable cfg.tab.sync.ignore},
-          },
-        },
-        notify = {
-          threshold = vim.log.levels.${cfg.notify.threshold},
-          absolute_path = ${boolToString cfg.notify.absolutePath},
-        },
-        ui = {
-          confirm = {
-            remove = ${boolToString cfg.ui.confirm.remove},
-            trash = ${boolToString cfg.ui.confirm.trash},
-          },
-        },
-      })'';
+
+            live_filter = {
+              prefix = "${cfg.liveFilter.prefix}",
+              always_show_folders = ${boolToString cfg.liveFilter.alwaysShowFolders},
+            },
+
+            tab = {
+              sync = {
+                open = ${boolToString cfg.tab.sync.open},
+                close = ${boolToString cfg.tab.sync.close},
+                ignore = ${nvim.lua.listToLuaTable cfg.tab.sync.ignore},
+              },
+            },
+
+            notify = {
+              threshold = vim.log.levels.${cfg.notify.threshold},
+              absolute_path = ${boolToString cfg.notify.absolutePath},
+            },
+
+            ui = {
+              confirm = {
+                remove = ${boolToString cfg.ui.confirm.remove},
+                trash = ${boolToString cfg.ui.confirm.trash},
+              },
+            },
+          })
+    '';
   };
 }
diff --git a/modules/filetree/nvimtree/nvimtree.nix b/modules/filetree/nvimtree/nvimtree.nix
index 291d3a2..a68877e 100644
--- a/modules/filetree/nvimtree/nvimtree.nix
+++ b/modules/filetree/nvimtree/nvimtree.nix
@@ -118,6 +118,12 @@ with builtins; {
 
     hijackDirectories = mkOption {
       description = "hijack new directory buffers when they are opened (`:e dir`).";
+
+      default = {
+        enable = true;
+        autoOpen = false;
+      };
+
       type = types.submodule {
         options = {
           enable = mkOption {
@@ -136,10 +142,6 @@ with builtins; {
           };
         };
       };
-      default = {
-        enable = true;
-        autoOpen = false;
-      };
     };
 
     updateFocusedFile = mkOption {
@@ -147,6 +149,13 @@ with builtins; {
         Update the focused file on `BufEnter`, un-collapses the folders recursively
         until it finds the file.
       '';
+
+      default = {
+        enable = false;
+        updateRoot = false;
+        ignoreList = [];
+      };
+
       type = types.submodule {
         options = {
           enable = mkEnableOption "update focused file";
@@ -169,9 +178,6 @@ with builtins; {
           };
         };
       };
-      default = {
-        ignoreList = [];
-      };
     };
 
     systemOpen = {
@@ -199,11 +205,23 @@ with builtins; {
         debounceDelay = 50;
         showOnDirs = false;
         showOnOpenDirs = true;
+
+        icons = {
+          hint = "";
+          info = "";
+          warning = "";
+          error = "";
+        };
+
+        severity = {
+          min = "HINT";
+          max = "ERROR";
+        };
       };
 
       type = types.submodule {
         options = {
-          enable = mkEnableOption "diagnostics";
+          enable = mkEnableOption "Enable diagnostics view in the signcolumn.";
 
           debounceDelay = mkOption {
             description = "Idle milliseconds between diagnostic event and update.";
@@ -212,24 +230,17 @@ with builtins; {
 
           showOnDirs = mkOption {
             description = "Show diagnostic icons on parent directories.";
-            type = types.bool;
           };
 
           showOnOpenDirs = mkOption {
-            description = "Show diagnostics icons on directories that are open.";
-            type = types.bool;
+            description = ''
+              Show diagnostics icons on directories that are open.
+              Only relevant when `diagnostics.show_on_dirs` is `true`.
+            '';
           };
 
           icons = mkOption {
             description = "Icons for diagnostic severity.";
-
-            default = {
-              hint = "";
-              info = "";
-              warning = "";
-              error = "";
-            };
-
             type = types.submodule {
               options = {
                 hint = mkOption {
@@ -253,13 +264,7 @@ with builtins; {
           };
 
           severity = mkOption {
-            description = "Severity for which the diagnostics will be displayed";
-
-            default = {
-              min = "HINT";
-              max = "ERROR";
-            };
-
+            description = "Severity for which the diagnostics will be displayed. See `:help diagnostic-severity`";
             type = types.submodule {
               options = {
                 min = mkOption {
@@ -316,6 +321,7 @@ with builtins; {
       description = "Indicate which file have unsaved modification.";
 
       default = {
+        enable = false;
         showOnDirs = true;
         showOnOpenDirs = true;
       };
@@ -382,6 +388,7 @@ with builtins; {
 
     view = mkOption {
       description = "Window / buffer setup.";
+
       default = {
         centralizeSelection = false;
         cursorline = true;
@@ -405,6 +412,7 @@ with builtins; {
           };
         };
       };
+
       type = types.submodule {
         options = {
           centralizeSelection = mkOption {
@@ -1066,13 +1074,6 @@ with builtins; {
         options = {
           sync = mkOption {
             description = "Configuration for syncing nvim-tree across tabs.";
-
-            default = {
-              open = false;
-              close = false;
-              ignore = [];
-            };
-
             type = types.submodule {
               options = {
                 open = mkOption {
@@ -1126,8 +1127,10 @@ with builtins; {
         };
       };
     };
+
     ui = mkOption {
       description = "General UI configuration.";
+
       default = {
         confirm = {
           remove = true;