diff -r 4002f43a9c5e fqa0.ms
--- a/fqa0.ms	Wed Jan 27 11:24:58 2021 -0500
+++ b/fqa0.ms	Tue Feb 02 13:07:20 2021 +0300
@@ -795,7 +795,7 @@
 .ihtml h4
 
 In the year 2002, the fourth edition of Plan 9 was released under the
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/9ad06889a5d1/lib/legal/lpl">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/lib/legal/lpl">
 Lucent Public License.
 .ihtml a
 This time, Theo de Raadt was not impressed:
@@ -873,13 +873,13 @@
 .ihtml h4
 
 Any additions or changes (as recorded in Mercurial history) made by 9front are provided under the terms of the MIT License, reproduced in the file
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/9ad06889a5d1/lib/legal/mit">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/lib/legal/mit">
 .CW /lib/legal/mit ,
 .ihtml a
 unless otherwise indicated.
 
 Read:
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/9ad06889a5d1/lib/legal/NOTICE">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/lib/legal/NOTICE">
 .CW /lib/legal/NOTICE .
 .ihtml a
 .html - <a name="0.3" />
diff -r 4002f43a9c5e fqa1.ms
--- a/fqa1.ms	Wed Jan 27 11:24:58 2021 -0500
+++ b/fqa1.ms	Tue Feb 02 13:07:20 2021 +0300
@@ -255,7 +255,7 @@
 featuring a console and support for FAT/ISO/PXE and being small (<8K)
 
 • New EFI based boot loader
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/boot/efi">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/boot/efi">
 .CW efi
 .ihtml a
 
@@ -304,7 +304,7 @@
 .ihtml a
 
 •
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/9ad06889a5d1/lib/rob">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/lib/rob">
 .CW /lib/rob
 .ihtml a
 and other new corpuses, suitable as fodder for
@@ -416,7 +416,7 @@
 .ihtml a
 
 •
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc64/">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc64/">
 .CW pc64 ,
 .ihtml a
 kernel for amd64
@@ -507,7 +507,7 @@
 \(em dynamic tracing language (like dtrace)
 
 •
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/rc/bin/feminize">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/rc/bin/feminize">
 .CW feminize(1)
 .ihtml a
 \(em replace sexist remarks
@@ -518,26 +518,26 @@
 .ihtml a
 
 • New games:
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/doom">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/doom">
 .CW doom ,
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/glendy.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/glendy.c">
 .CW glendy ,
 .ihtml a
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/38dcaeaa222c/sys/src/games/linden.c">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/sys/src/games/linden.c">
 .CW linden ,
 .ihtml a
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/mandel.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/mandel.c">
 .CW mandel ,
 .ihtml a
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/mines">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/mines">
 .CW mines ,
 .ihtml a
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/mole.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/mole.c">
 .CW mole ,
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/packet.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/packet.c">
 .CW packet ,
 .ihtml a
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/38dcaeaa222c/sys/src/games/v8e">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/sys/src/games/v8e">
 .CW v8e
 .ihtml a
 
@@ -887,19 +887,19 @@
 .IP
 • AC97
 \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/audioac97.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/audioac97.c">
 .CW /sys/src/9/pc/audioac97.c
 .ihtml a
 
 • Intel HDA
 \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/audiohda.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/audiohda.c">
 .CW /sys/src/9/pc/audiohda.c
 .ihtml a
 
 • SB 16/ESS
 \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/audiosb16.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/audiosb16.c">
 .CW /sys/src/9/pc/audiosb16.c
 .ihtml a
 
@@ -915,19 +915,19 @@
 .IP
 • ADMtek Pegasus
 \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/cmd/nusb/ether/aue.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/nusb/ether/aue.c">
 .CW /sys/src/cmd/nusb/ether/aue.c
 .ihtml a
 
 • Broadcom BCM57xx
 \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/etherbcm.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/etherbcm.c">
 .CW /sys/src/9/pc/etherbcm.c
 .ihtml a
 
 • Realtek RTL8150
 \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/cmd/nusb/ether/url.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/nusb/ether/url.c">
 .CW /sys/src/cmd/nusb/ether/url.c
 .ihtml a
 
@@ -967,10 +967,10 @@
 .IP
 • Wacom serial tablets WACF004, WACF008
 
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/cmd/aux/wacom.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/aux/wacom.c">
 .CW /sys/src/cmd/aux/wacom.c,
 .ihtml a
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/cmd/aux/tablet.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/aux/tablet.c">
 .CW /sys/src/cmd/aux/tablet.c
 .ihtml a
 
@@ -986,19 +986,19 @@
 .IP
 • AMD Geode LX driver
 
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/cmd/aux/vga/geode.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/aux/vga/geode.c">
 .CW /sys/src/cmd/aux/vga/geode.c
 .ihtml a
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/vgageode.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/vgageode.c">
 .CW /sys/src/9/pc/vgageode.c
 .ihtml a
 
 • Intel GM915, GM965, Sandy Bridge, Ivy Bridge, and Haswell driver
 
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/cmd/aux/vga/igfx.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/aux/vga/igfx.c">
 .CW /sys/src/cmd/aux/vga/igfx.c
 .ihtml a
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/vgaigfx.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/vgaigfx.c">
 .CW /sys/src/9/pc/vgaigfx.c
 .ihtml a
 .LP
@@ -1011,7 +1011,7 @@
 .ihtml ul <ul>
 .IP
 • Ricoh \(em
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/9/pc/pmmc.c">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/pmmc.c">
 .CW /sys/src/9/pc/pmmc.c
 .ihtml a
 .LP
diff -r 4002f43a9c5e fqa2.ms
--- a/fqa2.ms	Wed Jan 27 11:24:58 2021 -0500
+++ b/fqa2.ms	Tue Feb 02 13:07:20 2021 +0300
@@ -313,7 +313,7 @@
 .CW io(1)
 .ihtml a
 man page is located in section 1, in the file
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/9d875116b400/sys/man/1/io">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/man/1/io">
 .CW /sys/man/1/io .
 .ihtml a
 You can examine this troff source for a simple example of how to format and construct a typical man page.
diff -r 4002f43a9c5e fqa4.ms
--- a/fqa4.ms	Wed Jan 27 11:24:58 2021 -0500
+++ b/fqa4.ms	Tue Feb 02 13:07:20 2021 +0300
@@ -471,7 +471,7 @@
 to anything besides
 .CW vesa
 will bypass the emulated VESA BIOS and attempt to use a native VGA driver for the video card in question. Read:
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/9d875116b400/lib/vgadb">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/lib/vgadb">
 .CW /lib/vgadb
 .ihtml a
 for a list of monitors and video cards that are already known by the system; and the man pages
diff -r 4002f43a9c5e fqa6.ms
--- a/fqa6.ms	Wed Jan 27 11:24:58 2021 -0500
+++ b/fqa6.ms	Tue Feb 02 13:07:20 2021 +0300
@@ -63,7 +63,7 @@
 
 .B Note:
 A script for downloading all the RFCs is located in
-.ihtml a <a href="https://code.9front.org/hg/plan9front/file/9ad06889a5d1/lib/rfc/grabrfc">
+.ihtml a <a href="https://code.9front.org/hg/plan9front/file/tip/lib/rfc/grabrfc">
 .CW /lib/rfc/grabrfc .
 .ihtml a
 It copies the files into
diff -r 4002f43a9c5e fqa8.ms
--- a/fqa8.ms	Wed Jan 27 11:24:58 2021 -0500
+++ b/fqa8.ms	Tue Feb 02 13:07:20 2021 +0300
@@ -106,11 +106,11 @@
 it using the mouse button 2 menu (see the discussion of
 .CW rio
 menus, below). This can be used to approximate a form of command history (see also the commands
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/rc/bin/%22">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/rc/bin/%22">
 "
 .ihtml a
 and
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/rc/bin/%22%22">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/rc/bin/%22%22">
 "",
 .ihtml a
 which print and execute the previous command, respectively).
@@ -2044,22 +2044,22 @@
 
 .ihtml ul <ul>
 .IP
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/gb">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/gb">
 gb
 .ihtml a
 \(em Game Boy
 
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/gba">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/gba">
 gba
 .ihtml a
 \(em Game Boy Advance
 
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/nes">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/nes">
 nes
 .ihtml a
 \(em Nintendo Entertainment System
 
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/snes">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/snes">
 snes
 .ihtml a
 \(em Super Nintendo Entertainment System
@@ -2084,7 +2084,7 @@
 
 .ihtml ul <ul>
 .IP
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/md">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/md">
 md
 .ihtml a
 \(em Sega Mega Drive/Genesis
@@ -2109,7 +2109,7 @@
 
 .ihtml ul <ul>
 .IP
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/1f9d7811d546/sys/src/games/c64">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/games/c64">
 c64
 .ihtml a
 \(em Commodore 64
@@ -2134,7 +2134,7 @@
 
 .ihtml ul <ul>
 .IP
-.ihtml a <a href="http://code.9front.org/hg/plan9front/file/3717d97f97b6/sys/src/cmd/vmx">
+.ihtml a <a href="http://code.9front.org/hg/plan9front/file/tip/sys/src/cmd/vmx">
 vmx
 .ihtml a
 \(em virtual PC