sillytavern: change to global installation (#432510)

pkgs/by-name/si/sillytavern/package.nix

@@ -1,7 +1,5 @@
 {
-  makeBinaryWrapper,
   buildNpmPackage,
-  nodejs,
   fetchFromGitHub,
   lib,
 }:
@@ -17,19 +15,12 @@ buildNpmPackage (finalAttrs: {
   };
   npmDepsHash = "sha256-hayhsEZN857V6bsWPXupLeqxcOr1sgKs0uWN2pSQD+k=";
 
-  nativeBuildInputs = [ makeBinaryWrapper ];
-
   dontNpmBuild = true;
-  installPhase = ''
-    runHook preInstall
 
-    mkdir -p $out/{bin,opt}
-    cp -r . $out/opt/sillytavern
-    makeWrapper ${lib.getExe nodejs} $out/bin/sillytavern \
-      --add-flags $out/opt/sillytavern/server.js \
-      --set-default NODE_ENV production
-
-    runHook postInstall
+  # These dirs are not installed automatically.
+  # And if they were not in place, the app would try to create them at runtime, which is of course impossible to achieve.
+  postInstall = ''
+    mkdir $out/lib/node_modules/sillytavern/{backups,public/scripts/extensions/third-party}
   '';
 
   meta = {
@@ -37,6 +28,9 @@ buildNpmPackage (finalAttrs: {
     longDescription = ''
       SillyTavern is a user interface you can install on your computer (and Android phones) that allows you to interact with
       text generation AIs and chat/roleplay with characters you or the community create.
+
+      This package makes a global installation, instead of a standalone installation according to the official tutorial.
+      See [the official documentation](https://docs.sillytavern.app/installation/#global--standalone-mode) for the context.
     '';
     downloadPage = "https://github.com/SillyTavern/SillyTavern/releases";
     homepage = "https://docs.sillytavern.app/";