Nah, none of that worked. Revert.

mkClojureLib.nix

@@ -1,9 +1,9 @@
-{ lib, stdenv, callPackage, clojure, build-tools-jar, writeTextDir }:
+{ lib, stdenv, callPackage, clojure, build-tools-jar, writeText }:
 { src, name, group, version, clj-deps, src-paths }:
 
 with lib;
 let
-  build-tools-deps = writeTextDir "deps.edn" ''
+  build-tools-deps = writeText "deps.edn" ''
     { :aliases
       { :build
         { :ns-default build
@@ -34,15 +34,12 @@ in stdenv.mkDerivation {
   buildPhase = let
     cmd = ''
       HOME=$TEMP/home
-      BHOME=$TEMP/build-home
       mkdir -p $HOME
       mkdir -p ${target}
-      mkdir -p $BHOME
-      cp ${build-tools-deps}/deps.edn $BHOME/deps.edn
 
       clojure \
         -Scp     .:${build-tools-jar}:${classpath} \
-        -Sdeps   $BHOME/deps.edn \
+        -Sdeps   ${build-tool-deps} \
         -X:build \
         lib-uberjar \
         :project ${group}/${name} \