diff --git a/users/pbsds/home/profiles/bashrc.d/nix-shell.sh b/users/pbsds/home/profiles/bashrc.d/nix-shell.sh
index 7191e48..a66a049 100644
--- a/users/pbsds/home/profiles/bashrc.d/nix-shell.sh
+++ b/users/pbsds/home/profiles/bashrc.d/nix-shell.sh
@@ -25,7 +25,7 @@ _ns() {
   cmd=("${cmd[@]:1}")
   if [[ ${#cmd[@]} -gt 0 ]]; then
     (
-      _ns false "${args[@]}"
+      _ns "$is_dev" "${args[@]}"
       set -x
       "${cmd[@]}"
     )
@@ -53,7 +53,7 @@ _ns() {
 
   # traverse propagated inputs
   # this is safe since the store paths form a DAG
-  # TODO: rethink this logic
+  # TODO: rethink native logic
   local -i idx=-1
   while [[ $((++idx)) -lt "${#storepaths_native[@]}" ]]; do
     if [[ -f "${storepaths_native[$idx]}"/nix-support/propagated-native-build-inputs ]]; then
@@ -72,16 +72,11 @@ _ns() {
   done
 
   # find things to add to env
-  local -a add_to_path=()
-  local -a add_to_libs=()
-  local -a add_to_share=()
-  local -a add_to_include=()
-  local -a add_to_pythonpath=()
 
   local -A seen=()
   # for storepath in "${storepaths_native[@]}"; do
   for storepath in "${storepaths_build[@]}"; do
-    if [[ -n "${seen["$storepath"]:-}" ]]; then
+    if [[ -v seen["$storepath"] ]]; then
       continue
     fi
     seen["$storepath"]=1
@@ -90,10 +85,15 @@ _ns() {
       export PATH="$storepath/bin${PATH:+":$PATH"}"
     fi
     if >/dev/null compgen -G "$storepath/lib/*.so"; then
-      export LD_LIBRARY_PATH="$(IFS=: ; printf "%s" "$storepath"/lib/*.so)${LD_LIBRARY_PATH:+":$LD_LIBRARY_PATH"}"
+      for path in "$storepath"/lib/*.so; do
+        export LD_LIBRARY_PATH="${path}${LD_LIBRARY_PATH:+":$LD_LIBRARY_PATH"}"
+      done
     fi
     if >/dev/null compgen -G "$storepath/lib/*.so.*"; then
-      export LD_LIBRARY_PATH="$(IFS=: ; printf "%s" "$storepath"/lib/*.so.*)${LD_LIBRARY_PATH:+":$LD_LIBRARY_PATH"}"
+      local path
+      for path in "$storepath"/lib/*.so.*; do
+        export LD_LIBRARY_PATH="${path}${LD_LIBRARY_PATH:+":$LD_LIBRARY_PATH"}"
+      done
       export CMAKE_LIBRARY_PATH="$storepath/lib${CMAKE_LIBRARY_PATH:+":$CMAKE_LIBRARY_PATH"}"
     fi
     if [[ -d "$storepath/lib/pkgconfig" ]]; then
@@ -102,6 +102,9 @@ _ns() {
     if [[ -d "$storepath/share" ]]; then
       export XDG_DATA_DIRS="$storepath/share${XDG_DATA_DIRS:+":$XDG_DATA_DIRS"}"
     fi
+    if [[ -d "$storepath/share/man" ]]; then
+      export MANPATH="$storepath/share/man${MANPATH:+":$MANPATH"}"
+    fi
     if [[ -d "$storepath/share/pkgconfig" ]]; then
       export PKG_CONFIG_PATH="$storepath/share/pkgconfig${PKG_CONFIG_PATH:+":$PKG_CONFIG_PATH"}"
     fi