Restructure flake.nix for a simpler config for building different images off the same NixOS config.

nix/configuration/roles/emacs/default.nix

@@ -68,7 +68,7 @@ in
           (e_shorthand my_emacs)
         ];
 
-        environment.persistence."/state" = lib.mkIf (!config.me.buildingIso) {
+        environment.persistence."/state" = lib.mkIf (config.me.mountPersistence) {
           hideMounts = true;
           users.talexander = {
             directories = [

nix/configuration/roles/emacs/files/emacs/elisp/base.el

@@ -110,8 +110,6 @@
  project-mode-line t
  )
 
-;; (setq-default fringes-outside-margins t)
-
 ;; Typed text replaces selection
 (delete-selection-mode)
 

nix/configuration/roles/emacs/files/emacs/elisp/util-tree-sitter.el

@@ -1,3 +1,5 @@
+;; (add-to-list 'major-mode-remap-alist '(c-mode . c-ts-mode))
+
 (use-package treesit
   :pin manual
   :ensure nil