change starship to show direnv

Author: debugloop

home/starship.nix

@@ -5,7 +5,10 @@
       format = lib.strings.concatStrings [
         "$sudo$hostname" # usually hidden
         "$directory$custom"
+        "$nix_shell"
+        "$direnv"
         "$git_branch$git_commit$git_state$git_status"
+        "$env_var"
         "$cmd_duration"
         "$line_break"
         "$jobs$status$shlvl$character"
@@ -27,6 +30,17 @@
         read_only = "✖";
       };
 
+      direnv = {
+        disabled = true;
+      };
+
+      env_var = {
+        disabled = false;
+        variable = "SERIAL_NUMBER";
+        style = "bright-black";
+        format = "[$env_value]($style)";
+      };
+
       git_branch = {
         format = "[$symbol$branch(:$remote_branch)]($style)";
         symbol = " ";
@@ -71,6 +85,14 @@
         symbol = "";
       };
 
+      nix_shell = {
+        disabled = false;
+        impure_msg = "[󱄅](blue)";
+        pure_msg = "[󱄅](bold white)";
+        unknown_msg = "[󱄅](bold red)";
+        format = "$state ";
+      };
+
       status = {
         disabled = false;
         pipestatus = true;