Therapist needs to depend on the DF version, since it uses its MD5

pkgs/games/dwarf-fortress/default.nix

@@ -64,10 +64,18 @@ let
 
         dfhack = callPackage ./dfhack {
           inherit (pkgs.perlPackages) XMLLibXML XMLLibXSLT;
-          inherit dfVersion;
-          inherit twbt;
+          inherit dfVersion twbt;
           stdenv = gccStdenv;
         };
+
+        dwarf-therapist = callPackage ./dwarf-therapist/wrapper.nix {
+          inherit dwarf-fortress;
+          dwarf-therapist = pkgs.qt5.callPackage ./dwarf-therapist {
+            texlive = pkgs.texlive.combine {
+              inherit (pkgs.texlive) scheme-basic float caption wrapfig adjmulticol sidecap preprint enumitem;
+            };
+          };
+        };
       in
       callPackage ./wrapper {
         inherit (self) themes;
@@ -76,41 +84,33 @@ let
         dwarf-fortress-unfuck = dwarf-fortress-unfuck;
         twbt = twbt;
         dfhack = dfhack;
+        dwarf-therapist = dwarf-therapist;
       };
   }) (lib.attrNames self.df-hashes));
 
   self = rec {
     df-hashes = builtins.fromJSON (builtins.readFile ./game.json);
-    
+
+    # Aliases for the latest Dwarf Fortress and the selected Therapist install
     dwarf-fortress = getAttr (versionToName latestVersion) df-games;
+    dwarf-therapist = dwarf-fortress.dwarf-therapist;
+    dwarf-fortress-original = dwarf-fortress.dwarf-fortress;
 
     dwarf-fortress-full = callPackage ./lazy-pack.nix {
-      inherit versionToName;
-      inherit latestVersion;
-      inherit df-games;
+      inherit df-games versionToName latestVersion;
     };
-
+    
     soundSense = callPackage ./soundsense.nix { };
 
-    dwarf-therapist = callPackage ./dwarf-therapist/wrapper.nix {
-      inherit (dwarf-fortress) dwarf-fortress;
-      dwarf-therapist = pkgs.qt5.callPackage ./dwarf-therapist {
-        texlive = pkgs.texlive.combine {
-          inherit (pkgs.texlive) scheme-basic float caption wrapfig adjmulticol sidecap preprint enumitem;
-        };
-      };
-    };
-
     legends-browser = callPackage ./legends-browser {};
 
     themes = recurseIntoAttrs (callPackage ./themes {
       stdenv = stdenvNoCC;
     });
 
-    # aliases
+    # Theme aliases
     phoebus-theme = themes.phoebus;
     cla-theme = themes.cla;
-    dwarf-fortress-original = dwarf-fortress.dwarf-fortress;
   };
 
 in self // df-games

pkgs/games/dwarf-fortress/lazy-pack.nix

@@ -8,7 +8,7 @@
 , enableTWBT ? enableDFHack
 , enableSoundSense ? true
 , enableStoneSense ? true
-, enableDwarfTherapist ? true, dwarf-therapist
+, enableDwarfTherapist ? true
 , enableLegendsBrowser ? true, legends-browser
 , theme ? themes.phoebus
 # General config options:
@@ -24,6 +24,7 @@ let
   dwarf-fortress = if hasAttr dfGame df-games
                    then getAttr dfGame df-games
                    else throw "Unknown Dwarf Fortress version: ${dfVersion}";
+  dwarf-therapist = dwarf-fortress.dwarf-therapist;
 in
 buildEnv {
   name = "dwarf-fortress-full";

pkgs/games/dwarf-fortress/wrapper/default.nix

@@ -1,5 +1,6 @@
 { stdenv, lib, buildEnv, substituteAll
 , dwarf-fortress, dwarf-fortress-unfuck
+, dwarf-therapist
 , enableDFHack ? false, dfhack
 , enableSoundSense ? false, soundSense, jdk
 , enableStoneSense ? false
@@ -89,7 +90,7 @@ stdenv.mkDerivation rec {
   runDFHack = ./dfhack.in;
   runSoundSense = ./soundSense.in;
 
-  passthru = { inherit dwarf-fortress; };
+  passthru = { inherit dwarf-fortress dwarf-therapist; };
 
   buildCommand = ''
     mkdir -p $out/bin