new meat

home/util/murex.nix

@@ -0,0 +1,66 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}: let
+  inherit (lib) mkEnableOption mkOption mkIf types;
+  inherit (builtins) listToAttrs;
+  cfg = config.programs.murex;
+in {
+  options.programs.murex = {
+    enable = mkEnableOption "murex shell";
+    managePlugins = mkEnableOption "plugin management";
+    plugins = mkOption {
+      type = with types; listOf package;
+      default = [];
+    };
+    direnv = mkEnableOption "direnv integration";
+    profile = mkOption {
+      type = types.str;
+      default = "";
+    };
+    preload = mkOption {
+      type = types.str;
+      default = "";
+    };
+  };
+  config = {
+    home.file =
+      {
+        ".murex_preload" = {
+          text = cfg.preload;
+          enable = cfg.preload != "";
+        };
+        ".murex_profile" = {
+          text =
+            cfg.profile
+            ++ (
+              if cfg.direnv
+              then ''
+                direnv hook murex -> source
+              ''
+              else ""
+            );
+          enable = cfg.direnv || (cfg.profile != "");
+        };
+        ".murex_modules/packages.json" = {
+          text = builtins.toJSON (map (plugin: {
+              Protocol = "nix";
+              URI = "https://none.thanks/managed.git";
+              Package = plugin.pname;
+            })
+            cfg.plugins);
+          enable = cfg.managePlugins && (cfg.plugins != []);
+        };
+      }
+      // (mkIf cfg.managePlugins (listToAttrs (map (plugin: {
+          name = ".murex_modules/${plugin.pname}";
+          value = {
+            recursive = true;
+            source = plugin;
+          };
+        })
+        cfg.plugins)));
+  };
+}