diff --git a/home/-shrc b/home/-shrc
index c82763d..5afcbc5 100644
--- a/home/-shrc
+++ b/home/-shrc
@@ -2,6 +2,7 @@
 # for both zsh and bash
 
 #umask 027 # screw others
+umask 022 # don't inherit last umask. pip will break itself.
 
 ADDPATH() {
     grep ":$1:" <<<":$PATH:" >/dev/null || export PATH="$PATH:$1"
diff --git a/home/zshrc b/home/zshrc
index 62a6a88..162640f 100644
--- a/home/zshrc
+++ b/home/zshrc
@@ -45,6 +45,7 @@ function {
         append_history share_history # across sessions
         hist_expire_dups_first # sharing/appending will result in dups
         hist_ignore_dups # don't push lines identical to the previous
+        hist_ignore_space # don't push lines beginning with spaces
         auto_cd # exec a dir to cd
         auto_pushd # cd acts as pushd
         no_match # error on bad tab-complete
@@ -54,6 +55,7 @@ function {
         complete_in_word # enable tab completion when cursor between words
         rc_quotes # 'you''re dumb' like "you're dumb"
         brace_ccl # for character ranges like {a-z}
+        ksh_typeset # treat `local x=$(cmd)` and `x=$(cmd)` the same
     )
     setopt "${opts[@]}"
     unsetopt rm_star_silent rm_star_wait # yolo
@@ -64,12 +66,6 @@ autoload -U zmv
 zmodload zsh/mathfunc
 autoload -Uz zcalc
 
-isup() {
-    local c
-    curl -sLI -w '%{http_code}' -o /dev/null "$1" | read -r c
-    [ "${c:0:1}" -eq 2 ]
-}
-
 DIRSTACKSIZE=24
 dirprev() {
     pushd -q +1
diff --git a/sh/conv b/sh/conv
deleted file mode 100755
index 9c0242f..0000000
--- a/sh/conv
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/zsh
-conv() {
-	printf "%08x\n" $(((0x$1-0x664C05A0+0x80000000)^0))
-}
-conv $1
diff --git a/sh/isup b/sh/isup
new file mode 100644
index 0000000..739b122
--- /dev/null
+++ b/sh/isup
@@ -0,0 +1,7 @@
+#!/usr/bin/zsh
+isup() {
+    local c
+    curl -sLI -w '%{http_code}' -o /dev/null "$1" | read -r c
+    [ "${c:0:1}" -eq 2 ]
+}
+isup "$@"
diff --git a/sh/unconv b/sh/unconv
deleted file mode 100755
index a9658bc..0000000
--- a/sh/unconv
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/zsh
-unconv() {
-	printf "%08x\n" $(((0x$1^0)&0x00FFFFFF+0x664C05A0))
-}
-unconv $1