feat(shell): migrate to fish

modules/cli/vcs/jj.nix

@@ -41,6 +41,43 @@ lib.my.makeHomeProgramConfig {
         };
       };
       home.packages = [ pkgs.lazyjj ];
+      programs.starship = {
+        settings = {
+          custom = {
+            jj = {
+              ignore_timeout = true;
+              description = "The current jj status";
+              when = true;
+              command = ''
+                jj log --revisions @ --no-graph --ignore-working-copy --color always --limit 1 --template '
+                  separate(" ",
+                    " ",
+                    change_id.shortest(4),
+                    bookmarks,
+                    "|",
+                    concat(
+                      if(conflict, "💥"),
+                      if(divergent, "🚧"),
+                      if(hidden, "👻"),
+                      if(immutable, "🔒"),
+                    ),
+                    raw_escape_sequence("\x1b[1;32m") ++ if(empty, "(empty)"),
+                    raw_escape_sequence("\x1b[1;32m") ++ coalesce(
+                      truncate_end(29, description.first_line(), "…"),
+                      "(no description set)",
+                    ) ++ raw_escape_sequence("\x1b[0m"),
+                  )
+                ' || {starship module git_branch && starship module git_status}
+              '';
+            };
+          };
+          git_state.disabled = true;
+          git_commit.disabled = true;
+          git_metrics.disabled = true;
+          git_branch.disabled = true;
+          git_status.disabled = true;
+        };
+      };
     };
   };
 }