diff --git a/bin/man b/bin/man
index 1b0a1a69..07051e19 100755
--- a/bin/man
+++ b/bin/man
@@ -18,6 +18,7 @@ fn roff {
 	}
 	if not {
 		Nflag=-N
+		Lflag='-rL1000i'
 	}
 	if(~ $x *eqn*)
 		preproc=($preproc eqn)
@@ -26,15 +27,15 @@ fn roff {
 
 	switch($#preproc) {
 		case 0
-			{echo -n $FONTS; cat $2< /dev/null} | troff $Nflag -$MAN 
+			{echo -n $FONTS; cat $2< /dev/null} | troff $Nflag $Lflag -$MAN 
 		case 1
-			{echo -n $FONTS; cat $2< /dev/null} | $preproc | troff $Nflag -$MAN
+			{echo -n $FONTS; cat $2< /dev/null} | $preproc | troff $Nflag $Lflag -$MAN
 		case 2
-			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | troff $Nflag -$MAN
+			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | troff $Nflag $Lflag -$MAN
 		case 3
-			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | $preproc(3) | | troff $Nflag -$MAN
+			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | $preproc(3) | | troff $Nflag $Lflag -$MAN
 		case *
-			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | $preproc(3) | | $preproc(4) | troff $Nflag -$MAN
+			{echo -n $FONTS; cat $2< /dev/null} | $preproc(1) | $preproc(2) | $preproc(3) | | $preproc(4) | troff $Nflag $Lflag -$MAN
 	}
 }
 
diff --git a/mac/9term.app/Contents/MacOS/9term b/mac/9term.app/Contents/MacOS/9term
index b5a46bc8..04eb042c 100755
--- a/mac/9term.app/Contents/MacOS/9term
+++ b/mac/9term.app/Contents/MacOS/9term
@@ -3,12 +3,16 @@ fshell=$(finger $(whoami) | sed -n 's/.*Shell: //p' | sed 1q)
 SHELL=${fshell:-$SHELL}
 PLAN9=${PLAN9:-/usr/local/plan9}
 cd $HOME
+arch=x86_64
+if arch -arch arm64 date >/dev/null 2>&1; then
+	arch=arm64
+fi
 case "$SHELL" in
 */rc)
 	echo '
 		if(! ~ $PLAN9/bin $path)
 			path=($path $PLAN9/bin)
-		$PLAN9/bin/9term -l -W600x800 &
+		arch -arch '$arch' $PLAN9/bin/9term -l -W600x800 &
 	' | $SHELL -l
 	exit 0
 	;;
@@ -24,6 +28,6 @@ if ! [[ :$PATH: =~ :$PLAN9/bin: ]]
 then
 	PATH=$PATH:$PLAN9/bin
 fi
-$PLAN9/bin/9term -l -W600x800 &
+arch -arch $arch $PLAN9/bin/9term -l -W600x800 &
 exit 0
 
diff --git a/mac/Plumb.app/Contents/MacOS/plumb b/mac/Plumb.app/Contents/MacOS/plumb
index 850ec0e0..b3f15330 100755
--- a/mac/Plumb.app/Contents/MacOS/plumb
+++ b/mac/Plumb.app/Contents/MacOS/plumb
@@ -3,6 +3,10 @@
 if [ -e ~/.bashrc ] ; then
 	. ~/.bashrc
 fi
+arch=x86_64
+if arch -arch arm64 date >/dev/null 2>&1; then
+	arch=arm64
+fi
 PLAN9=${PLAN9:-/usr/local/plan9}
 
 bin=$PLAN9/bin
@@ -10,5 +14,5 @@ IFS=$'\n'
 
 for file in $($bin/macargv)
 do
-	$bin/macedit "$file"
+	arch -arch $arch $bin/macedit "$file"
 done
diff --git a/tmac/tmac.an b/tmac/tmac.an
index 02b31bbf..39399840 100644
--- a/tmac/tmac.an
+++ b/tmac/tmac.an
@@ -479,7 +479,9 @@
 .if t \{.ds R ®
 .ds S \s\n()S
 ..\}
-.if n \{.nr )L 11i
+.if n \{.ie \nL<=0 .nr )L 11i
+.el \{.nr )L \nLu
+.nr V 0\}
 .nr LL 6.5i
 .nr )O .463i
 .if '\*(.T'think' \{.nrLL 80n