feat(doom): Enable language modules and disable stylix

This commit expands the Doom Emacs configuration by enabling a
wide array of programming language modules and tools. It also
decouples Emacs from the system's Stylix theming for more granular
control.

*** Modules
- Enabled language support for C/C++, Clojure, Go, Haskell,
  Python, Rust, Web, and Zig.
- Also enabled the ~company~, ~ibuffer~, ~upload~, and
  ~graphviz~ modules.
*** UI
- Switched to relative line numbers.
- Enabled icons for the ~vertico~ completion UI.
*** Nix
- Disabled the ~stylix~ target for Emacs to prevent it from
  overwriting the Doom theme.
- Added ~imagemagick~ as a dependency.

home/david/modules/programs/doom/config/config.el

@@ -24,7 +24,7 @@
       telega-prefix-map)
 
 (setq display-line-numbers-type
-      'visual)
+      'relative)
 
 (add-hook 'telega-load-hook
           'telega-notifications-mode)

home/david/modules/programs/doom/config/init.el

@@ -23,12 +23,12 @@
        ;;layout            ; auie,ctsrnm is the superior home row
 
        :completion
-       ;;company           ; the ultimate code completion backend
+       company           ; the ultimate code completion backend
        (corfu +orderless)  ; complete with cap(f), cape and a flying feather!
        ;;helm              ; the *other* search engine for love and life
        ;;ido               ; the other *other* search engine...
        ;;ivy               ; a search engine for love and life
-       vertico           ; the search engine of the future
+       (vertico +icons)           ; the search engine of the future
 
        :ui
        ;;deft              ; notational velocity for Emacs
@@ -73,7 +73,7 @@
        dired             ; making dired pretty [functional]
        electric          ; smarter, keyword-based electric-indent
        ;;eww               ; the internet is gross
-       ;;ibuffer           ; interactive buffer management
+       ibuffer           ; interactive buffer management
        undo              ; persistent, smarter undo for your inevitable mistakes
        vc                ; version-control and Emacs, sitting in a tree
 
@@ -108,7 +108,7 @@
        ;;terraform         ; infrastructure as code
        ;;tmux              ; an API for interacting with tmux
        tree-sitter       ; syntax and parsing, sitting in a tree...
-       ;;upload            ; map local to remote projects via ssh/ftp
+       upload            ; map local to remote projects via ssh/ftp
 
        :os
        (:if (featurep :system 'macos) macos)  ; improve compatibility with macOS
@@ -117,8 +117,8 @@
        :lang
        ;;agda              ; types of types of types of types...
        ;;beancount         ; mind the GAAP
-       ;;(cc +lsp)         ; C > C++ == 1
-       ;;clojure           ; java with a lisp
+       (cc +lsp)         ; C > C++ == 1
+       clojure           ; java with a lisp
        ;;common-lisp       ; if you've seen one lisp, you've seen them all
        ;;coq               ; proofs-as-programs
        ;;crystal           ; ruby at the speed of c
@@ -137,9 +137,9 @@
        ;;fsharp            ; ML stands for Microsoft's Language
        ;;fstar             ; (dependent) types and (monadic) effects and Z3
        ;;gdscript          ; the language you waited for
-       ;;(go +lsp)         ; the hipster dialect
+       (go +lsp)         ; the hipster dialect
        ;;(graphql +lsp)    ; Give queries a REST
-       ;;(haskell +lsp)    ; a language that's lazier than I am
+       (haskell +lsp)    ; a language that's lazier than I am
        ;;hy                ; readability of scheme w/ speed of python
        idris             ; a language you can depend on
        json              ; At least it ain't XML
@@ -159,16 +159,16 @@
        org               ; organize your plain life in plain text
        ;;php               ; perl's insecure younger brother
        ;;plantuml          ; diagrams for confusing people more
-       ;;graphviz          ; diagrams for confusing yourself even more
+       graphviz          ; diagrams for confusing yourself even more
        ;;purescript        ; javascript, but functional
-       ;;python            ; beautiful is better than ugly
-       ;;qt                ; the 'cutest' gui framework ever
+       python            ; beautiful is better than ugly
+       qt                ; the 'cutest' gui framework ever
        racket            ; a DSL for DSLs
        ;;raku              ; the artist formerly known as perl6
        ;;rest              ; Emacs as a REST client
        ;;rst               ; ReST in peace
        ;;(ruby +rails)     ; 1.step {|i| p "Ruby is #{i.even? ? 'love' : 'life'}"}
-       ;;(rust +lsp)       ; Fe2O3.unwrap().unwrap().unwrap().unwrap()
+       (rust +lsp)       ; Fe2O3.unwrap().unwrap().unwrap().unwrap()
        ;;scala             ; java, but good
        (scheme +guile)   ; a fully conniving family of lisps
        sh                ; she sells {ba,z,fi}sh shells on the C xor
@@ -176,9 +176,9 @@
        ;;solidity          ; do you need a blockchain? No.
        ;;swift             ; who asked for emoji variables?
        ;;terra             ; Earth and Moon in alignment for performance.
-       ;;web               ; the tubes
+       web               ; the tubes
        yaml              ; JSON, but readable
-       ;;zig               ; C, but simpler
+       zig               ; C, but simpler
 
        :email
        ;;(mu4e +org +gmail)

home/david/modules/programs/doom/default.nix

@@ -14,12 +14,13 @@ in
     };
   };
   config = lib.mkIf cfg.enable {
+    stylix.targets.emacs.enable = false;
     services.emacs.enable = true;
     programs.doom-emacs = {
       enable = true;
       emacs = pkgs.emacs-pgtk;
       extraPackages =
-        emacsPackages: with emacsPackages; [
+        ep: with ep; [
           melpaPackages.telega
         ];
       extraBinPackages = with pkgs; [
@@ -28,8 +29,10 @@ in
         git
         ripgrep
         fd
+        imagemagick
       ];
       doomDir = ./config;
+      provideEmacs = true;
     };
   };
 }