=== modified file 'common.zsh'
--- common.zsh	2017-12-13 11:12:52 +0000
+++ common.zsh	2017-12-13 01:54:02 +0000
@@ -146,7 +146,10 @@
 	local base
 	base=${BASE##*/}
 	[[ -z $base || $base == '%' ]] && return
-	cat meta/$base
+	while (( $#base % 4 )); do
+		base+='='
+	done
+	tr <<<$base _- /+ | base64 -d
 }
 
 decode_args() {

=== modified file 'functions/encode-args'
--- functions/encode-args	2017-12-13 11:12:52 +0000
+++ functions/encode-args	2017-12-13 01:09:04 +0000
@@ -1,10 +1,6 @@
 if (($#)); then
-	local data sha256sum
-	data=${(j::)${(oq)@}}
-	sha256sum=$(sha256sum <<<$data) || die
-	sha256sum=${sha256sum%% *}
-	printf '%s' $data >meta/$sha256sum || die
-	printf '%s' $sha256sum || die
+	base64 -w 0 <<<${(j::)${(oq)@}} | tr /+ _- | tr -d '='
+	return $[ ${(j.|.)pipestatus} ]
 else
 	echo -n '%'
 fi