add zig installation via tarball

tasks/pkgs/ghostty.yml

@@ -1,23 +1,31 @@
 ---
+- ansible.builtin.include_vars:
+    file: ghostty.yml
+    name: _ghostty
+- ansible.builtin.set_fact:
+    pkgconfig_ghostty: "{{ _ghostty | ansible.builtin.combine(pkgconfig.ghostty) }}"
+
 - name: ensure dependencies
-  when: ansible_distribution == 'Fedora'
   block:
     - ansible.builtin.include_tasks:
         file: "pkgs/terra_repo.yml"
-      when: pkgconfig_terrarepo is not defined
-    
+      when: pkgconfig_terrarepo not defined
+
     - name: append to pkgs
       ansible.builtin.set_fact:
         syspkgs: "{{ syspkgs + [ 'ghostty' ] }}"
+  when: ansible_distribution == 'Fedora' or
+        not pkgconfig_ghostty.build
 
-- name: no ghostty for this system
-  when:
-    - ansible_distribution != 'Fedora'
-    - ansible_system == 'Linux'
-  debug:
-    msg: ghostty cannot be installed this way for your distribution
+- name: build ghostty from source
+  block:
+    - ansible.builtin.set_fact:
+        syspkgs: "{{ syspkgs + pkgconfig_ghostty.build_deps[ansible_os_family] }}"
+        srcpkgs: "{{ srcpkgs + ['ghostty'] }}"
+  when: (ansible_distribution != 'Fedora' and ansible_system == 'Linux') or
+        pkgconfig_ghostty.build
 
 - name: append ghostty to caskpkgs
-  when: ansible_distribution == 'MacOSX'
   ansible.builtin.set_fact:
     caskpkgs: "{{ caskpkgs + [ 'ghostty' ] }}"
+  when: ansible_distribution == 'MacOSX'